8.5.12. MDOModel¶

MDOModel¶

Represent a model in MindOpt application

Methods

`MDOModel`	Build models associated with the input environment
`MDOModel`	Read existing information from the file and build a model associated with the input environment
`MDOModel`	Copy from another existing model to create a new model
`addConstr`	Add a new linear constraint to this model
`addConstr`	Add a new linear constraint to this model
`addConstr`	Add a new linear constraint to this model
`addConstr`	Add a new linear constraint to this model
`addConstr`	Add new linear constraints to this model
`addConstr`	Add a new linear constraint to this model
`addConstr`	Add a new linear constraint to this model
`addConstr`	Add new linear constraints to this model
`addConstr`	Add a new linear constraint to this model, which has upper and lower bounds
`addConstrs`	Add an amount of constraints to this model
`addConstrs`	Add an amount of constraints to this model
`addConstrs`	Adda certain number of constraints to the specified position of this model
`addGenConstrIndicator`	Add a new indicator constraint to this model
`addPsdConstr`	Add a new PSD constraint to this model
`addPsdVar`	Add a new PSD variable by indicating its dimension and name
`addPsdVar`	Add a new PSD variables by indicating its objective coefficient and name
`addRange`	Add a new range constraint to this model
`addRangePsdConstr`	Add a new range PSD constraint to this model
`addRanges`	Add an amount of range constraints to this model
`addSOS`	Add an SOS constraint to the model
`addVar`	Add a variable to this model by indicate its lower bound, upper bound, objective coefficient, type and name
`addVar`	Add a variable to this model and associate it to exist constraints
`addVar`	Add a variable to this model and associate it with existing constraints by indicating the constraint matrix column
`addVars`	Add count variables of the same type to this model
`addVars`	Add multiple variables with different attributes
`addVars`	Add multiple variables with different attributes
`addVars`	Add multiple variables with different attributes and constraints
`chgCoeff`	Change the constraint coefficient in constraint matrix
`chgCoeffs`	Change the constraint coefficients in the constraint matrix
`computeIIS`	Compute an IIS(Irreducible Inconsistent Subsystem)
`dispose`	Releases all resources associated with this model
`get`	Retrieves the value of an int attribute
`get`	Retrieve the value of the double attribute
`get`	Retrieve the value of a specific attribute associated with constraints
`get`	Retrieve the value of a specific int attribute associated with specific variables
`get`	Retrieve the value of a specific double attribute associated with specific variables
`get`	Retrieve the value of a specific char attribute associated with specific variables
`get`	Retrieve the value of a specific String attribute associated with specific variables
`get`	Retrieves the value of a specific int attribute associated with specific constraints
`get`	Retrieves the value of a specific double attribute associated with a specific constraint
`get`	Retrieves the value of a specific char attribute associated with specific constraints
`get`	Retrieves the value of a specific String attribute associated with specific constraints
`get`	Retrieves the value of an int attribute associated with a specific variable matrix
`get`	Retrieves the value of a String attribute
`get`	Retrieves the value of the double attribute associated with a specific variable matrix
`get`	Retrieves the value of the char attribute associated with a specific variable matrix
`get`	Retrieves the value of a String attribute associated with a specific variable matrix
`get`	Retrieves the value of an int attribute associated with a specific constraint matrix
`get`	Retrieves the value of the double attribute associated with a specific constraint matrix
`get`	Retrieves the value of the char attribute associated with a specific constraint matrix
`get`	Retrieves the value of a String attribute associated with a specific constraint matrix
`get`	Retrieves the value of an int attribute associated with a three-dimensional array of specific variables
`get`	Retrieves the value of the double attribute associated with a three-dimensional array of specific variables
`get`	Retrieves the value of the char attribute associated with a three-dimensional array of specific variables
`get`	Retrieves the value of a specific attribute associated with a variable
`get`	Retrieves the value of a String attribute associated with a three-dimensional array of specific variables
`get`	Retrieves the value of an int attribute associated with a specified constrained three-dimensional array
`get`	Retrieves the value of the double attribute associated with a specified constrained three-dimensional array
`get`	Retrieves the value of the char attribute associated with a specific constraint 3D array
`get`	Retrieves the value of a String attribute associated with a specified constrained three-dimensional array
`get`	Retrieve the value of an int parameter by name
`get`	Retrieve the value of the double parameter by its name
`get`	Retrieve the value of a String parameter by name
`get`	Retrieves the value of a specific int attribute associated with specific general constraints
`get`	Retrieve the value of a specific attribute associated with general constraints
`get`	Retrieves the value of a specific attribute associated with a variable
`get`	Retrieves the value of a specific int attribute associated with specific general constraints
`get`	Retrieve the value of a specific attribute associated with general constraints
`get`	Retrieves the value of a specific int attribute associated with specific general constraints
`get`	Retrieve the value of a specific attribute associated with general constraints
`get`	Retrieves the value of a specific int attribute associated with specific general constraints
`get`	Retrieve the value of a specific attribute associated with general constraints
`get`	Retrieves the value of a specific attribute associated with a variable
`get`	Retrieves the value of a specific attribute associated with a variable
`get`	Retrieves the value of a specific attribute associated with a constraint
`get`	Retrieves the value of a specific attribute associated with a constraint
`get`	Retrieves the value of a specific attribute associated with a constraint
`getCoeff`	Retrieve coefficient values of variables from constraint matrices
`getCol`	Retrieve the values of a column from a constraint matrix
`getConstr`	Retrieve the ith constraint in this model
`getConstrByName`	Retrieve constraints by constraint name
`getConstrs`	Retrieve all constraints in this model
`getEnv`	Retrieve the environment associated with this model
`getGenConstrIndicator`	Retrieve a general constraint by its object
`getGenConstrs`	Retrieve all general constraints in this model
`getObjective`	Retrieve the objective function of this model
`getPsdConstr`	Retrieve the ith PSD constraint in this model
`getPsdConstrs`	Retrieve all PSD constraints in this model
`getPsdVar`	Retrieve the ith PSD variable
`getPsdVars`	Retrieve all PSD variables in this model
`getRow`	Retrieve rows from a constraint matrix by constraints
`getSOS`	Retrieves the variables and coefficients contained in the SOS constraint
`getSOSs`	Retrieve all SOS constraints in the current model
`getVar`	Retrieve the ith variable in this model
`getVarByName`	Retrieve variables by name
`getVars`	Retrieve all variables in this model
`optimize`	Start optimizing the model
`read`	Load data from a file to an existing model
`remove`	Delete a variable from this model
`remove`	Remove a constraint from this model
`remove`	Remove an SOS constraint from this model
`remove`	Remove an general constraint from this model
`reset`	Reset the model to the unsolved state, discard any previously calculated solutions, and clear only the solutions
`reset`	Reset the model to the unsolved state and discard any previously calculated solutions
`set`	Set the value of the int parameter
`set`	Set the value of the double parameter
`set`	Sets the value of a specific String attribute associated with a specified variable
`set`	Sets the value of a specific int attribute associated with a specified constraint
`set`	Sets the value of a specific double attribute associated with a specified constraint
`set`	Set the value of a specific char attribute associated with specified constraints
`set`	Set the value of a specific String attribute associated with specified constraints
`set`	Set the value of a specific int attribute associated with specified variable
`set`	Set the value of a specific double attribute associated with specified variables
`set`	Set the value of a specific attribute associated with specified variables
`set`	Set the value of a specific attribute associated with specified variables
`set`	Set the value of a specific int attribute associated with specified constraints
`set`	Set the value of a string parameter
`set`	Set the value of a specific double attribute associated with a specified constraint
`set`	Set the value of a specific char attribute associated with a specified constraint
`set`	Set the value of a specific attribute associated with a specified constraint
`set`	Set the value of the int attribute associated with a specific variable matrix
`set`	Set the value of the double attribute associated with a specific variable matrix
`set`	Set the value of the char attribute associated with a specific variable matrix
`set`	Set the value of the String attribute associated with a specific variable matrix
`set`	Set the value of the int attribute associated with a specific constraint matrix
`set`	Set the value of the double attribute associated with a specific constraint matrix
`set`	Set the value of the char attribute associated with a specific constraint matrix
`set`	Set the value of the parameter
`set`	Sets the value of the String attribute associated with a specific constraint matrix
`set`	Set the value of the int attribute associated with a specific constraint matrix
`set`	Set the value of the double attribute associated with a specific constraint matrix
`set`	Set the value of the char attribute associated with a specific constraint matrix
`set`	Set the value of the String attribute associated with a specific constraint matrix
`set`	Set the value of the int attribute associated with a specific constraint 3D array
`set`	Set the value of the double attribute associated with a specific constraint 3D array
`set`	Set the value of the char attribute associated with a specific constraint 3D array
`set`	Set the value of the String attribute associated with a specific constraint 3D array
`set`	Sets the value of the String attribute associated with a specific general constraint list
`set`	Set the value of the int attribute
`set`	Set the value of a specific attribute associated with specified a general constraint list
`set`	Sets the value of the String attribute associated with a specific general constraint matrix
`set`	Sets the value of the String attribute associated with a specific general constraint cube
`set`	Set the value of the double attribute
`set`	Set the value of a String attribute
`set`	Set the value of a specific attribute associated with specified variables
`set`	Set the value of a specific attribute associated with a specified variable
`set`	Sets the value of a specific attribute associated with a specified variable
`setCallback`	Set up a user defined callback class object
`setObjective`	Set the objective function
`write`	Write model data to a file

MDOModel(MDOEnv env)¶

Build models associated with the input environment

Parameters: MDOEnv env – Associated environment

MDOModel(MDOEnv env, String filename)¶

Read existing information from the file and build a model associated with the input environment

Parameters

MDOEnv env – Associated environment
String filename – The file name from which you want to read the model. The file format and compression type should be displayed after the filename. Valid file formats include. lp, .mps, and. qps, .dat-s. Supported compression types include. gz and. bz2.

MDOModel(MDOModel model)¶

Copy from another existing model to create a new model

Parameters: MDOModel model – Existing models to be copied

MDOConstr addConstr(MDOLinExpr lhsExpr, char sense, MDOLinExpr rhsExpr, String name)¶

Add a new linear constraint to this model

Parameters

MDOLinExpr lhsExpr – The left-hand-side linear expression of the new constraints. If it is NULL, 0 is used.
char sense –
The inequality sign. If it is NULL, ‘MDO.LESS_EQUAL’ will be used’. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
MDOLinExpr rhsExpr – The right-hand-side linear expression
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

Newly added constraint

MDOConstr addConstr(MDOLinExpr lhsExpr, char sense, MDOVar rhsVar, String name)¶

Add a new linear constraint to this model

Parameters

MDOLinExpr lhsExpr – The left-hand-side linear expression
char sense –
The inequality sign. If it is NULL, ‘MDO.LESS_EQUAL’ will be used’. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
MDOVar rhsVar – The right-hand-side variable
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

Newly added constraints

MDOConstr addConstr(MDOVar lhsVar, char sense, MDOLinExpr rhsExpr, String name)¶

Add a new linear constraint to this model

Parameters

MDOVar lhsVar – The left-hand-side variable
char sense –
The inequality sign. If it is NULL, ‘MDO.LESS_EQUAL’ will be used’. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
MDOLinExpr rhsExpr – The right-hand-side linear expression
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

Newly added constraints

MDOConstr addConstr(MDOVar v, char sense, MDOVar rhsVar, String name)¶

Add a new linear constraint to this model

Parameters

MDOVar v – The left-hand-side variable
char sense –
The inequality sign. If it is NULL, ‘MDO.LESS_EQUAL’ will be used’. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
MDOVar rhsVar – The right-hand-side variable
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

Newly added constraints

MDOConstr addConstr(MDOVar lhsVar, char sense, double rhs, String name)¶

Add new linear constraints to this model

Parameters

MDOVar lhsVar – Left-hand-side variable
char sense –
The inequality sign. Supported flags include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
double rhs – The right-hand-side value.
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

The newly added constraints

MDOConstr addConstr(double lhs, char sense, MDOVar rhsVar, String name)¶

Add a new linear constraint to this model

Parameters

double lhs – The left-hand-side value
char sense –
The inequality sign. Supported flags include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
MDOVar rhsVar – The right-hand-side variable
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

The Newly added constraints

MDOConstr addConstr(MDOLinExpr lhsExpr, char sense, double rhs, String name)¶

Add a new linear constraint to this model.

Parameters

MDOLinExpr lhsExpr – The left-hand-side linear expression
char sense –
An inequality flag. Supported flags include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
double rhs – The right-hand-side value.
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

The newly added constraints

MDOConstr addConstr(double lhs, char sense, MDOLinExpr rhsExpr, String name)¶

Add new linear constraints to this model

Parameters

double lhs – The left-hand-side value
char sense –
An inequality flag. Supported flags include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
MDOLinExpr rhsExpr – The right-hand-side linear expression
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

The newly added constraints

MDOConstr addConstr(MDOLinExpr expr, char sense, double lhs, double rhs, String name)¶

Add a new linear constraint to this model, which has upper and lower bounds

Parameters

MDOLinExpr expr – Linear expression
char sense –
The inequality sign. Supported flags include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
double lhs – The left-hand-side value
double rhs – The right-hand-side value
String name – The name of the new constraint. An empty string is allowed. In this case, the system-generated name is given.

Returns

The newly added constraints

MDOConstr[] addConstrs(int count)¶

Add an amount of constraints to this model

Parameters: int count – The number of constraints to be added
Returns: The newly added constraint array

MDOConstr[] addConstrs(MDOLinExpr[] lhsExprs, char[] senses, double[] rhss, String[] names)¶

Add an amount of constraints to this model

Parameters

MDOLinExpr[] lhsExprs – The left-hand-side linear expressions of the new constraints. If it is NULL, 0 is used.
char[] senses –
The inequality sign of the new constraint. If it is NULL, ‘MDO.LESS_EQUAL’ will be used’. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
double[] rhss – The right-hand-side values of the new constraint. If NULL exists, ‘MDO.INFINITY’ will be used.
String[] names – The name of the new constraints. If it is NULL, the system automatically generates the name.

Returns

The newly added constraints

MDOConstr[] addConstrs(MDOLinExpr[] lhsExprs, char[] senses, double[] rhss, String[] names, int start)¶

Adda certain number of constraints to the specified position of this model

Parameters

MDOLinExpr[] lhsExprs – The linear expression of the new constraint. If it is NULL, 0 is used.
char[] senses –
The inequality symbol of the new constraint. If it is NULL, ‘MDO.LESS_EQUAL’is used’. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
double[] rhss – The value to the right of the new constraint. If NULL exists, ‘MDO.INFINITY’is used’.
String[] names – The name of the new constraint. If it is NULL, the system automatically generates the name.
int start – The specified start index to be added.

Returns

The newly added constraints

MDOGenConstr addGenConstrIndicator(MDOVar binvar, int binval, MDOLinExpr expr, char sense, double rhs, String name)¶

Add a new indicator constraint to this model.

Parameters

MDOVar binvar – The binary variable of this indicator constraint.
int binval – The binary value when indicator constraint take effect.
MDOLinExpr expr – The linear expression of new indicator constraint.
char sense – The constraint sense of new indicator constraint.
double rhs – The right-hand-side value of new indicator constraint.
String name – The name of new indicator constraint.

Returns

The newly added general constraint.

MDOPsdConstr addPsdConstr(MDOPsdExpr expr, char sense, double rhs, String name)¶

Add a new PSD constraint to this model

Parameters

MDOPsdExpr expr – The left-hand-side expression of new PSD constraint.
char sense –
The inequality symbol. Supported symbols include:
- MDO.EQUAL
- MDO.LESS_EQUAL
- MDO.GREATER_EQUAL
double rhs – The right-hand-side value of the new PSD variable
String name – The name of the new PSD constraint. If the string is empty, the system-generated name will be used.

Returns

Newly added constraints

MDOPsdVar addPsdVar(int dim, String name)¶

Add a new PSD variable by indicating its dimension and name

Parameters

int dim – The dimension of the new PSD variable, that is, the number of matrix rows (or matrix columns , the matrix is square) associated with the new PSD variable.
String name – The name of the new PSD variable. If the string is empty, the system-generated name will be used.

Returns

The newly added PSD variable

MDOPsdVar addPsdVar(MDOMatrix obj, String name)¶

Add a new PSD variables by indicating its objective coefficient and name

Parameters

MDOMatrix obj – The objective coefficient of the new PSD variable, it should be a square matrix.
String name – The name of new PSD variable, can be empty string in which case a system generated name will be given.

Returns

Newly added PSD variable

MDOConstr addRange(MDOLinExpr expr, double lower, double upper, String name)¶

Add a new range constraint to this model

Parameters

MDOLinExpr expr – Linear expression
double lower – Lower bound of linear expression
double upper – Upper bound of linear expression
String name – The name of the new constraint. If the string is empty, the system-generated name will be used.

Returns

Newly added constraints

MDOPsdConstr addRangePsdConstr(MDOPsdExpr expr, double lower, double upper, String name)¶

Add a new range PSD constraint to this model

Parameters

MDOPsdExpr expr – The expression of new PSD constraint
double lower – The lower bound of the PSD expression
double upper – The upper bound of the PSD expression
String name – The name of the new PSD constraint. If the string is empty, the system-generated name will be used.

Returns

The newly added constraints

MDOConstr[] addRanges(MDOLinExpr[] exprs, double[] lower, double[] upper, String[] names)¶

Add an amount of range constraints to this model

Parameters

MDOLinExpr[] exprs – An array of linear expressions for the new constraints. If it is NULL, 0 is used as the left value.
double[] lower – The lower bound array of the linear expressions. If it is NULL, 0 is used as the lower limit.
double[] upper – The upper bound array of linear expressions. If it is NULL, ‘MDO.INFINITY’is used’.
String[] names – The name array of the new constraints. If it is NULL, the system-generated name is used.

Returns

The newly added constraint array

MDOSOS addSOS(MDOVar[] vars, double[] weights, int type)¶

Add an SOS constraint to the model

Parameters

MDOVar[] vars – Variables included in the new SOS constraint
double[] weights – Weights of variables in new SOS constraints
int type –
The type of the new SOS constraint. Supported types include:
- MDO_SOS_TYPE1(1)
A maximum of one variable in a set is not equal to 0.
- MDO_SOS_TYPE2(2)
A maximum of two consecutive variables in a set are not equal to 0.

Returns

Newly added SOS constraint

MDOVar addVar(double lb, double ub, double obj, char type, String name)¶

Add a variable to this model by indicate its lower bound, upper bound, objective coefficient, type and name.

Parameters

double lb – The lower bound of new variable.
double ub – The upper bound of new variable.
double obj – The objective coefficient of new variable.
char type –
The type of the new variable. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.SEMICONT (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.
String name – The name of the new variable. If it is an empty string, the system-generated name is used.

Returns

The newly added variable

MDOVar addVar(double lb, double ub, double obj, char type, MDOConstr[] constrs, double[] coeffs, String name)¶

Add a variable to this model and associate it to exist constraints.

Parameters

double lb – The lower bound of new variable.
double ub – The upper bound of new variable.
double obj – The objective coefficient of new variable.
char type –
The type of the new variable. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.SEMICONT (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.
MDOConstr[] constrs – The constraints to be associated
double[] coeffs – The constraint coefficient of each associated constraint. If NULL, all coefficients are set to zero.
String name – The name of the new variable. If it is an empty string, the system-generated name is used.

Returns

The newly added variable

MDOVar addVar(double lb, double ub, double obj, char type, MDOColumn col, String name)¶

Add a variable to this model and associate it with existing constraints by indicating the constraint matrix column

Parameters

double lb – The lower bound of new variable
double ub – The upper bound of new variables
double obj – The objective coefficient of new variable.
char type –
The type of the new variable. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.SEMICONT (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.
MDOColumn col – The constraint matrix column associated with new variables
String name – The name of the new variable. If it is an empty string, the system-generated name is used.

Returns

The newly added variable

MDOVar[] addVars(int count, char type)¶

Add count variables of the same type to this model

Parameters

int count – Number of variables to be added.
char type –
The type of the new variables. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.speecht (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.

Returns

The newly added array of variables

MDOVar[] addVars(double[] lb, double[] ub, double[] obj, char[] type, String names)¶

Add multiple variables with different attributes

Parameters

double[] lb – The lower bounds of the new variables. If it is NULL, set the lower limit to 0.
double[] ub – The upper bounds of the new variable. If it is NULL, set the upper limit to ‘MDO.INFINITY’.
double[] obj – The objective coefficients of new variables, 0 will be used if NULL presents.
char[] type –
The type of the new variable. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.SEMICONT (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.
String names – The name of the new variable. If it is NULL, the system-generated name is used.

Returns

The newly added array of variables

MDOVar[] addVars(double[] lb, double[] ub, double[] obj, char[] type, String[] names, int start, int len)¶

Add multiple variables with different attributes

Parameters

double[] lb – The lower bounds of the new variable. If it is NULL, the lower limit is set to 0.
double[] ub – The upper bounds of the new variable. If it is NULL, the upper limit is set to ‘MDO.INFINITY’.
double[] obj – The objective coefficients of new variables, 0 will be used if NULL presents.
char[] type –
The type of the new variable. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.SEMICONT (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.
String[] names – The name of the new variable. If it is NULL, the system-generated name is used.
int start – Specifies the start index of the input to be added.
int len – The number of variables to add

Returns

The newly added array of variables

MDOVar[] addVars(double[] lb, double[] ub, double[] obj, char[] type, String[] names, MDOColumn[] col)¶

Add multiple variables with different attributes and constraints

Parameters

double[] lb – The lower bounds of the new variable. If it is NULL, the lower limit is set to 0.
double[] ub – The upper bounds of the new variable. If it is NULL, the upper limit is set to ‘MDO.INFINITY’.
double[] obj – The objective coefficients of new variables. If it is NULL, the target coefficients of the new variable are all set to 0.
char[] type –
The type of the new variable. Supported types include:
- MDO.CONTINUOUS(‘C’) continuous variable,
- MDO.BINARY(‘B’) binary variable,
- MDO.INTEGER (‘$) integer variable,
- MDO.SEMICONT (‘S’) semi-continuous variable,
- MDO.SEMIINT (‘$) semi-integer variable.
String[] names – The name of the new variable. If it is NULL, the system-generated name is used.
MDOColumn[] col – The constraint matrix column to associate with the new variable

Returns

The newly added array of variables

void chgCoeff(MDOConstr constr, MDOVar var, double value)¶

Change the constraint coefficient in constraint matrix

Parameters

MDOConstr constr – The constraint to indicate the coefficient
MDOVar var – The variable to indicate the coefficient
double value – The new coefficient value

void chgCoeffs(MDOConstr[] constrs, MDOVar[] vars, double[] values)¶

Change the constraint coefficients in the constraint matrix

Parameters

MDOConstr[] constrs – Constraints of coefficients
MDOVar[] vars – Variable of coefficient
double[] values – New coefficient value

void computeIIS()¶

Compute an IIS(Irreducible Inconsistent Subsystem). IIS is a subset of variable bounds and constraint bounds, this subset satisfies:

The subproblem corresponding to the subset is still infeasible. 2. After delete any bound in this subset, the subproblem becomes feasible.

Check IIS related attributes for variable and constraint for more details.

Note

The cardinality of the subsystem is supposed to be small. Note that the problem is supposed to be infeasible.

void dispose()¶: Releases all resources associated with this model. Note that this model cannot be used after this method is called.

int get(MDO.IntAttr attr)¶

Retrieves the value of an int attribute.

Parameters: MDO.IntAttr attr – Attribute
Returns: The current value of the attribute to be retrieved

double get(MDO.DoubleAttr attr)¶

Retrieve the value of the double attribute

Parameters: MDO.DoubleAttr attr – Attribute
Returns: The current value of the attribute to be retrieved

String[] get(MDO.StringAttr attr, MDOConstr[] constrs)¶

Retrieve the value of a specific attribute associated with constraints

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[] constrs – Associated constraint

Returns

The attribute value to be retrieved.

int[] get(MDO.IntAttr attr, MDOVar[] vars, int start, int len)¶

Retrieve the value of a specific int attribute associated with specific variables

Parameters

MDO.IntAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
int start – The starting index of the array.
int len – Number of associated variables

Returns

The attribute value to be retrieved.

double[] get(MDO.DoubleAttr attr, MDOVar[] vars, int start, int len)¶

Retrieve the value of a specific double attribute associated with specific variables

Parameters

MDO.DoubleAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
int start – The starting index of the array.
int len – Number of associated variables

Returns

The attribute value to be retrieved.

char[] get(MDO.CharAttr attr, MDOVar[] vars, int start, int len)¶

Retrieve the value of a specific char attribute associated with specific variables

Parameters

MDO.CharAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
int start – The starting index of the array.
int len – Number of associated variables

Returns

The attribute value to be retrieved.

String[] get(MDO.StringAttr attr, MDOVar[] vars, int start, int len)¶

Retrieve the value of a specific String attribute associated with specific variables

Parameters

MDO.StringAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
int start – The starting index of the array.
int len – Number of associated variables

Returns

The attribute value to be retrieved.

int[] get(MDO.IntAttr attr, MDOConstr[] constrs, int start, int len)¶

Retrieves the value of a specific int attribute associated with specific constraints

Parameters

MDO.IntAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
int start – The starting index of the array.
int len – Number of associated constraints

Returns

The attribute value to be retrieved.

double[] get(MDO.DoubleAttr attr, MDOConstr[] constrs, int start, int len)¶

Retrieves the value of a specific double attribute associated with a specific constraint

Parameters

MDO.DoubleAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
int start – The starting index of the array.
int len – Number of associated constraints

Returns

The attribute value to be retrieved.

char[] get(MDO.CharAttr attr, MDOConstr[] constrs, int start, int len)¶

Retrieves the value of a specific char attribute associated with specific constraints

Parameters

MDO.CharAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
int start – The starting index of the array.
int len – Number of associated constraints

Returns

The attribute value to be retrieved.

String[] get(MDO.StringAttr attr, MDOConstr[] constrs, int start, int len)¶

Retrieves the value of a specific String attribute associated with specific constraints

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
int start – The starting index of the array.
int len – Number of associated constraints

Returns

The attribute value to be retrieved.

int[][] get(MDO.IntAttr attr, MDOVar[][] vars)¶

Retrieves the value of an int attribute associated with a specific variable matrix

Parameters

MDO.IntAttr attr – Attribute
MDOVar[][] vars – Correlation variable matrix

Returns

The attribute value to be retrieved.

String get(MDO.StringAttr attr)¶

Retrieves the value of a String attribute.

Parameters: MDO.StringAttr attr – Attribute
Returns: The current value of the attribute to be retrieved

double[][] get(MDO.DoubleAttr attr, MDOVar[][] vars)¶

Retrieves the value of the double attribute associated with a specific variable matrix

Parameters

MDO.DoubleAttr attr – Attribute
MDOVar[][] vars – Variable matrix

Returns

The attribute value to be retrieved.

char[][] get(MDO.CharAttr attr, MDOVar[][] vars)¶

Retrieves the value of the char attribute associated with a specific variable matrix

Parameters

MDO.CharAttr attr – Attribute
MDOVar[][] vars – Variable matrix

Returns

The attribute value to be retrieved.

String[][] get(MDO.StringAttr attr, MDOVar[][] vars)¶

Retrieves the value of a String attribute associated with a specific variable matrix

Parameters

MDO.StringAttr attr – Attribute
MDOVar[][] vars – Variable matrix

Returns

The attribute value to be retrieved.

int[][] get(MDO.IntAttr attr, MDOConstr[][] constrs)¶

Retrieves the value of an int attribute associated with a specific constraint matrix

Parameters

MDO.IntAttr attr – Attribute
MDOConstr[][] constrs – Constraint matrix

Returns

The attribute value to be retrieved.

double[][] get(MDO.DoubleAttr attr, MDOConstr[][] constrs)¶

Retrieves the value of the double attribute associated with a specific constraint matrix

Parameters

MDO.DoubleAttr attr – Attribute
MDOConstr[][] constrs – Constraint matrix

Returns

The attribute value to be retrieved.

char[][] get(MDO.CharAttr attr, MDOConstr[][] constrs)¶

Retrieves the value of the char attribute associated with a specific constraint matrix

Parameters

MDO.CharAttr attr – Attribute
MDOConstr[][] constrs – Constraint matrix

Returns

The attribute value to be retrieved.

String[][] get(MDO.StringAttr attr, MDOConstr[][] constrs)¶

Retrieves the value of a String attribute associated with a specific constraint matrix

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[][] constrs – Constraint matrix

Returns

The attribute value to be retrieved.

int[][][] get(MDO.IntAttr attr, MDOVar[][][] vars)¶

Retrieves the value of an int attribute associated with a three-dimensional array of specific variables

Parameters

MDO.IntAttr attr – Attribute
MDOVar[][][] vars – Variable 3D array

Returns

The attribute value to be retrieved.

double[][][] get(MDO.DoubleAttr attr, MDOVar[][][] vars)¶

Retrieves the value of the double attribute associated with a three-dimensional array of specific variables

Parameters

MDO.DoubleAttr attr – Attribute
MDOVar[][][] vars – Variable 3D array

Returns

The attribute value to be retrieved.

char[][][] get(MDO.CharAttr attr, MDOVar[][][] vars)¶

Retrieves the value of the char attribute associated with a three-dimensional array of specific variables

Parameters

MDO.CharAttr attr – Attribute
MDOVar[][][] vars – Variable 3D array

Returns

The attribute value to be retrieved.

int[] get(MDO.IntAttr attr, MDOVar[] vars)¶

Retrieves the value of a specific attribute associated with a variable

Parameters

MDO.IntAttr attr – Attribute
MDOVar[] vars – Associated variable

Returns

The attribute value to be retrieved.

String[][][] get(MDO.StringAttr attr, MDOVar[][][] vars)¶

Retrieves the value of a String attribute associated with a three-dimensional array of specific variables

Parameters

MDO.StringAttr attr – Attribute
MDOVar[][][] vars – Variable 3D array

Returns

The attribute value to be retrieved.

int[][][] get(MDO.IntAttr attr, MDOConstr[][][] constrs)¶

Retrieves the value of an int attribute associated with a specified constrained three-dimensional array.

Parameters

MDO.IntAttr attr – Attribute
MDOConstr[][][] constrs – Constrained 3D array

Returns

The attribute value to be retrieved.

double[][][] get(MDO.DoubleAttr attr, MDOConstr[][][] constrs)¶

Retrieves the value of the double attribute associated with a specified constrained three-dimensional array.

Parameters

MDO.DoubleAttr attr – Attribute
MDOConstr[][][] constrs – Constrained 3D array

Returns

The attribute value to be retrieved.

char[][][] get(MDO.CharAttr attr, MDOConstr[][][] constrs)¶

Retrieves the value of the char attribute associated with a specific constraint 3D array

Parameters

MDO.CharAttr attr – Attribute
MDOConstr[][][] constrs – Constrained 3D array

Returns

The attribute value to be retrieved.

String[][][] get(MDO.StringAttr attr, MDOConstr[][][] constrs)¶

Retrieves the value of a String attribute associated with a specified constrained three-dimensional array.

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[][][] constrs – Constrained 3D array

Returns

The attribute value to be retrieved.

int get(MDO.IntParam param)¶

Retrieve the value of an int parameter by name

Parameters: MDO.IntParam param – Parameter name
Returns: The current value of the parameter to be retrieved.

double get(MDO.DoubleParam param)¶

Retrieve the value of the double parameter by its name

Parameters: MDO.DoubleParam param – Parameter name
Returns: The current value of the parameter to be retrieved.

String get(MDO.StringParam param)¶

Retrieve the value of a String parameter by name

Parameters: MDO.StringParam param – Parameter name
Returns: The current value of the parameter to be retrieved.

int[] get(MDO.IntAttr attr, MDOGenConstr[] genconstrs)¶

Retrieves the value of a specific int attribute associated with specific general constraints

Parameters

MDO.IntAttr attr – Attribute
MDOGenConstr[] genconstrs – Associated general constraints

Returns

The attribute value to be retrieved.

String[] get(MDO.StringAttr attr, MDOGenConstr[] genconstrs)¶

Retrieve the value of a specific attribute associated with general constraints

Parameters

MDO.StringAttr attr – Attribute
MDOGenConstr[] genconstrs – Associated general constraints

Returns

The attribute value to be retrieved.

double[] get(MDO.DoubleAttr attr, MDOVar[] vars)¶

Retrieves the value of a specific attribute associated with a variable

Parameters

MDO.DoubleAttr attr – Attribute
MDOVar[] vars – Associated variable

Returns

The attribute value to be retrieved.

int[] get(MDO.IntAttr attr, MDOGenConstr[] genconstrs, int start, int len)¶

Retrieves the value of a specific int attribute associated with specific general constraints

Parameters

MDO.IntAttr attr – Attribute
MDOGenConstr[] genconstrs – Constraint array, some of which are associated constraints
int start – The starting index of the array.
int len – Number of associated constraints

Returns

The attribute value to be retrieved.

String[] get(MDO.StringAttr attr, MDOGenConstr[] genconstrs, int start, int len)¶

Retrieve the value of a specific attribute associated with general constraints

Parameters

MDO.StringAttr attr – Attribute
MDOGenConstr[] genconstrs – Associated general constraints
int start – The starting index of the array.
int len – Number of associated constraints

Returns

The attribute value to be retrieved.

int[][] get(MDO.IntAttr attr, MDOGenConstr[][] genconstrs)¶

Retrieves the value of a specific int attribute associated with specific general constraints

Parameters

MDO.IntAttr attr – Attribute
MDOGenConstr[][] genconstrs – Associated general constraints

Returns

The attribute value to be retrieved.

String[][] get(MDO.StringAttr attr, MDOGenConstr[][] genconstrs)¶

Retrieve the value of a specific attribute associated with general constraints

Parameters

MDO.StringAttr attr – Attribute
MDOGenConstr[][] genconstrs – Associated general constraints

Returns

The attribute value to be retrieved.

int[][][] get(MDO.IntAttr attr, MDOGenConstr[][][] genconstrs)¶

Retrieves the value of a specific int attribute associated with specific general constraints

Parameters

MDO.IntAttr attr – Attribute
MDOGenConstr[][][] genconstrs – Associated general constraints

Returns

The attribute value to be retrieved.

String[][][] get(MDO.StringAttr attr, MDOGenConstr[][][] genconstrs)¶

Retrieve the value of a specific attribute associated with general constraints

Parameters

MDO.StringAttr attr – Attribute
MDOGenConstr[][][] genconstrs – Associated general constraints

Returns

The attribute value to be retrieved.

char[] get(MDO.CharAttr attr, MDOVar[] vars)¶

Retrieves the value of a specific attribute associated with a variable

Parameters

MDO.CharAttr attr – Attribute
MDOVar[] vars – Associated variable

Returns

The attribute value to be retrieved.

String[] get(MDO.StringAttr attr, MDOVar[] vars)¶

Retrieves the value of a specific attribute associated with a variable

Parameters

MDO.StringAttr attr – Attribute
MDOVar[] vars – Associated variable

Returns

The attribute value to be retrieved.

int[] get(MDO.IntAttr attr, MDOConstr[] constrs)¶

Retrieves the value of a specific attribute associated with a constraint

Parameters

MDO.IntAttr attr – Attribute
MDOConstr[] constrs – Associated constraint

Returns

The attribute value to be retrieved.

double[] get(MDO.DoubleAttr attr, MDOConstr[] constrs)¶

Retrieves the value of a specific attribute associated with a constraint.

Parameters

MDO.DoubleAttr attr – Attribute
MDOConstr[] constrs – Associated constraint

Returns

The attribute value to be retrieved.

char[] get(MDO.CharAttr attr, MDOConstr[] constrs)¶

Retrieves the value of a specific attribute associated with a constraint

Parameters

MDO.CharAttr attr – Attribute
MDOConstr[] constrs – Associated constraint

Returns

The attribute value to be retrieved.

double getCoeff(MDOConstr constr, MDOVar var)¶

Retrieve coefficient values of variables from constraint matrices

Parameters

MDOConstr constr – Constraints to be queried
MDOVar var – The name of the variable to be queried.

Returns

The coefficient value to be retrieved.

MDOColumn getCol(MDOVar var)¶

Retrieve the values of a column from a constraint matrix

Parameters: MDOVar var – Variables that represent columns
Returns: Constraint matrix columns to be retrieved

MDOConstr getConstr(int i)¶

Retrieve the ith constraint in this model

Parameters: int i – The index of the constraint to be retrieved.
Returns: Constraint to be retrieved

MDOConstr getConstrByName(String& name)¶

Retrieve constraints by constraint name

Parameters: String& name – The name of the constraint to be retrieved.
Returns: Constraints to be retrieved

MDOConstr[] getConstrs()¶

Retrieve all constraints in this model

Returns: All constraints in this model

MDOEnv getEnv()¶

Retrieve the environment associated with this model

Returns: The environment associated with the model

MDOGenConstr.Indicator getGenConstrIndicator(MDOGenConstr genconstr)¶

Retrieve a general constraint by its object.

Parameters

MDOGenConstr genconstr – The general constraint object.

Returns

The general constraint detailed data structure with 5 fields:

binVar: The binary variable of the indicator constraint.
binVal: The binary value when indicator constraint take effect.
expr: The linear expression of indicator constraint.
sense: The constraint sense of indicator constraint.
rhs: The right-hand-side value of indicator constraint.

MDOGenConstr[] getGenConstrs()¶

Retrieve all general constraints in this model

Returns: All general constraints in this model

MDOExpr getObjective()¶

Retrieve the objective function of this model

Returns: Objective function

MDOPsdConstr getPsdConstr(int i)¶

Retrieve the ith PSD constraint in this model

Parameters: int i – The index of the PSD constraint to be retrieved.
Returns: PSD constraint to be retrieved

MDOPsdConstr[] getPsdConstrs()¶

Retrieve all PSD constraints in this model

Returns: All PSD constraints in this model

MDOPsdVar getPsdVar(int i)¶

Retrieve the ith PSD variable

Parameters: int i – The index of the PSD variable to be retrieved.
Returns: PSD variable

MDOPsdVar[] getPsdVars()¶

Retrieve all PSD variables in this model

Returns: All PSD variables in this model

MDOLinExpr getRow(MDOConstr constr)¶

Retrieve rows from a constraint matrix by constraints

Parameters: MDOConstr constr – Constraints to be retrieved
Returns: Constraint matrix rows to be retrieved

MDOSOS.Value getSOS(MDOSOS sos)¶

Retrieves the variables and coefficients contained in the SOS constraint.

Parameters

MDOSOS sos – [in] SOS constraint

Returns

The value of specified SOS constraint. It consists of 3 fields:

An int SOS type (MDO.SOS_TYPE1 or MDO.SOS_TYPE2).
- MDO_SOS_TYPE1(1)
  A maximum of one variable in a set is not equal to 0.
- MDO_SOS_TYPE2(2)
  A maximum of two consecutive variables in a set are not equal to 0.
All variables contained
Wights associated to variables

MDOSOS[] getSOSs()¶

Retrieve all SOS constraints in the current model

Returns: Return a list of all SOS constraints in the model.

MDOVar getVar(int i)¶

Retrieve the ith variable in this model

Parameters: int i – The index of the variable to be retrieved.
Returns: The ith variable in this model

MDOVar getVarByName(String& name)¶

Retrieve variables by name

Parameters: String& name – The name of the variable to be retrieved
Returns: Variable

MDOVar[] getVars()¶

Retrieve all variables in this model

Returns: All variables in this model

void optimize()¶: Start optimizing the model

void read(String filename)¶

Load data from a file to an existing model

Parameters: String filename – The file name. Note that the file format and its compression type (optional) are encoded in the file name suffix. Valid suffixes are .prm and .mst. Valid compression types are .gz or .bz2.

void remove(MDOVar v)¶

Delete a variable from this model

Parameters: MDOVar v – The variable to delete

void remove(MDOConstr c)¶

Remove a constraint from this model

Parameters: MDOConstr c – The constraint to remove

void remove(MDOSOS sos)¶

Remove an SOS constraint from this model

Parameters: MDOSOS sos – The SOS constraint to remove

void remove(MDOGenConstr genconstr)¶

Remove an general constraint from this model

Parameters: MDOGenConstr genconstr – The general constraint to remove

void reset()¶: Reset the model to the unsolved state, discard any previously calculated solutions, and clear only the solutions.

void reset(int clearall)¶

Reset the model to the unsolved state and discard any previously calculated solutions

Parameters: int clearall – Whether to clear all information instead of only the solution. 1 indicates yes, and 0 indicates that only the solution is cleared.

void set(MDO.IntParam param, int value)¶

Set the value of the int parameter.

Parameters

MDO.IntParam param – Parameter
int value – The new value of the parameter.

void set(MDO.DoubleParam param, double value)¶

Set the value of the double parameter

Parameters

MDO.DoubleParam param – Parameter
double value – The new value of the parameter.

void set(MDO.StringAttr attr, MDOVar[] vars, String[] values)¶

Sets the value of a specific String attribute associated with a specified variable

Parameters

MDO.StringAttr attr – Attribute
MDOVar[] vars – Variable array
String[] values – New value array

void set(MDO.IntAttr attr, MDOConstr[] constrs, int[] values)¶

Sets the value of a specific int attribute associated with a specified constraint

Parameters

MDO.IntAttr attr – Attribute
MDOConstr[] constrs – Associated constraint
int[] values – The new value of the attribute.

void set(MDO.DoubleAttr attr, MDOConstr[] constrs, double[] val)¶

Sets the value of a specific double attribute associated with a specified constraint

Parameters

MDO.DoubleAttr attr – Attribute
MDOConstr[] constrs – Associated constraint
double[] val – The new value of the attribute.

void set(MDO.CharAttr attr, MDOConstr[] constrs, char[] values)¶

Set the value of a specific char attribute associated with specified constraints

Parameters

MDO.CharAttr attr – Attribute
MDOConstr[] constrs – Associated constraints
char[] values – The new value of the attribute.

void set(MDO.StringAttr attr, MDOConstr[] xconstrs, String[] values)¶

Set the value of a specific String attribute associated with specified constraints

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[] xconstrs – Associated constraints
String[] values – The new value of the attribute.

void set(MDO.IntAttr attr, MDOVar[] vars, int[] values, int start, int len)¶

Set the value of a specific int attribute associated with specified variable

Parameters

MDO.IntAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
int[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.DoubleAttr attr, MDOVar[] vars, double[] values, int start, int len)¶

Set the value of a specific double attribute associated with specified variables

Parameters

MDO.DoubleAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
double[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.CharAttr attr, MDOVar[] vars, char[] values, int start, int len)¶

Set the value of a specific attribute associated with specified variables

Parameters

MDO.CharAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
char[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.StringAttr attr, MDOVar[] vars, String[] values, int start, int len)¶

Set the value of a specific attribute associated with specified variables

Parameters

MDO.StringAttr attr – Attribute
MDOVar[] vars – An array of variables, some of which are associated variables.
String[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.IntAttr attr, MDOConstr[] constrs, int[] values, int start, int len)¶

Set the value of a specific int attribute associated with specified constraints

Parameters

MDO.IntAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
int[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.StringParam param, String value)¶

Set the value of a string parameter

Parameters

MDO.StringParam param – Parameter name
String value – The new value of the parameter.

void set(MDO.DoubleAttr attr, MDOConstr[] constrs, double[] values, int start, int len)¶

Set the value of a specific double attribute associated with a specified constraint

Parameters

MDO.DoubleAttr attr – Attribute name
MDOConstr[] constrs – Constraint array, some of which are associated constraints
double[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.CharAttr attr, MDOConstr[] constrs, char[] values, int start, int len)¶

Set the value of a specific char attribute associated with a specified constraint

Parameters

MDO.CharAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
char[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.StringAttr attr, MDOConstr[] constrs, String[] values, int start, int len)¶

Set the value of a specific attribute associated with a specified constraint

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated constraints
String[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.IntAttr attr, MDOVar[][] vars, int[][] values)¶

Set the value of the int attribute associated with a specific variable matrix

Parameters

MDO.IntAttr attr – Attribute to be modified
MDOVar[][] vars – Associated variable matrix
int[][] values – The new value of the attribute to be set.

void set(MDO.DoubleAttr attr, MDOVar[][] vars, double[][] values)¶

Set the value of the double attribute associated with a specific variable matrix

Parameters

MDO.DoubleAttr attr – Attribute to be modified
MDOVar[][] vars – Associated variable matrix
double[][] values – The new value of the attribute to be set.

void set(MDO.CharAttr attr, MDOVar[][] vars, char[][] values)¶

Set the value of the char attribute associated with a specific variable matrix

Parameters

MDO.CharAttr attr – Attribute to be modified
MDOVar[][] vars – Associated variable matrix
char[][] values – The new value of the attribute to be set.

void set(MDO.StringAttr attr, MDOVar[][] vars, String[][] values)¶

Set the value of the String attribute associated with a specific variable matrix

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOVar[][] vars – Associated variable matrix
String[][] values – The new value of the attribute to be set.

void set(MDO.IntAttr attr, MDOConstr[][] constrs, int[][] values)¶

Set the value of the int attribute associated with a specific constraint matrix

Parameters

MDO.IntAttr attr – Attribute to be modified
MDOConstr[][] constrs – Associated constraint matrix
int[][] values – The new value of the attribute to be set.

void set(MDO.DoubleAttr attr, MDOConstr[][] constrs, double[][] values)¶

Set the value of the double attribute associated with a specific constraint matrix

Parameters

MDO.DoubleAttr attr – Attribute to be modified
MDOConstr[][] constrs – Associated constraint matrix
double[][] values – The new value of the attribute to be set.

void set(MDO.CharAttr attr, MDOConstr[][] constrs, char[][] values)¶

Set the value of the char attribute associated with a specific constraint matrix

Parameters

MDO.CharAttr attr – Attribute to be modified
MDOConstr[][] constrs – Associated constraint matrix
char[][] values – The new value of the attribute to be set.

void set(String param, String value)¶

Set the value of the parameter. The type of the input parameter depends on the parameter itself.

Parameters

String param – Parameter
String value – The string representation of the new value of the parameter.

void set(MDO.StringAttr attr, MDOConstr[][] constrs, String[][] values)¶

Sets the value of the String attribute associated with a specific constraint matrix

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOConstr[][] constrs – Associated constraint matrix
String[][] values – The new value of the attribute to be set.

void set(MDO.IntAttr attr, MDOVar[][][] vars, int[][][] values)¶

Set the value of the int attribute associated with a specific constraint matrix

Parameters

MDO.IntAttr attr – Attribute to be modified
MDOVar[][][] vars – 3D array of associated variables
int[][][] values – The new value of the attribute to be set.

void set(MDO.DoubleAttr attr, MDOVar[][][] vars, double[][][] values)¶

Set the value of the double attribute associated with a specific constraint matrix

Parameters

MDO.DoubleAttr attr – Attribute to be modified
MDOVar[][][] vars – 3D array of associated variables
double[][][] values – The new value of the attribute to be set.

void set(MDO.CharAttr attr, MDOVar[][][] vars, char[][][] values)¶

Set the value of the char attribute associated with a specific constraint matrix

Parameters

MDO.CharAttr attr – Attribute to be modified
MDOVar[][][] vars – 3D array of associated variables
char[][][] values – The new value of the attribute to be set.

void set(MDO.StringAttr attr, MDOVar[][][] vars, String[][][] values)¶

Set the value of the String attribute associated with a specific constraint matrix

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOVar[][][] vars – 3D array of associated variables
String[][][] values – The new value of the attribute to be set.

void set(MDO.IntAttr attr, MDOConstr[][][] constrs, int[][][] values)¶

Set the value of the int attribute associated with a specific constraint 3D array

Parameters

MDO.IntAttr attr – Attribute to be modified
MDOConstr[][][] constrs – Associated constraint 3D array
int[][][] values – The new value of the attribute to be set.

void set(MDO.DoubleAttr attr, MDOConstr[][][] constrs, double[][][] values)¶

Set the value of the double attribute associated with a specific constraint 3D array

Parameters

MDO.DoubleAttr attr – Attribute to be modified
MDOConstr[][][] constrs – Associated constraint 3D array
double[][][] values – The new value of the attribute to be set.

void set(MDO.CharAttr attr, MDOConstr[][][] constrs, char[][][] values)¶

Set the value of the char attribute associated with a specific constraint 3D array

Parameters

MDO.CharAttr attr – Attribute to be modified
MDOConstr[][][] constrs – Associated constraint 3D array
char[][][] values – The new value of the attribute to be set.

void set(MDO.StringAttr attr, MDOConstr[][][] constrs, String[][][] values)¶

Set the value of the String attribute associated with a specific constraint 3D array

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOConstr[][][] constrs – Associated constraint 3D array
String[][][] values – The new value of the attribute to be set.

void set(MDO.StringAttr attr, MDOGenConstr[] genconstrs, String[] values)¶

Sets the value of the String attribute associated with a specific general constraint list

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOGenConstr[] genconstrs – Associated general constraint list
String[] values – The new value of the attribute to be set.

void set(MDO.IntAttr attr, int value)¶

Set the value of the int attribute

Parameters

MDO.IntAttr attr – Attribute
int value – New value

void set(MDO.StringAttr attr, MDOConstr[] constrs, String[] values, int start, int len)¶

Set the value of a specific attribute associated with specified a general constraint list

Parameters

MDO.StringAttr attr – Attribute
MDOConstr[] constrs – Constraint array, some of which are associated general constraints
String[] values – An array of values, some of which are new values of the attribute.
int start – The starting index of the array.
int len – The number of attributes to be set

void set(MDO.StringAttr attr, MDOGenConstr[][] genconstrs, String[][] values)¶

Sets the value of the String attribute associated with a specific general constraint matrix

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOGenConstr[][] genconstrs – Associated constraint matrix
String[][] values – The new value of the attribute to be set.

void set(MDO.StringAttr attr, MDOGenConstr[][][] genconstrs, String[][][] values)¶

Sets the value of the String attribute associated with a specific general constraint cube.

Parameters

MDO.StringAttr attr – Attribute to be modified
MDOGenConstr[][][] genconstrs – Associated constraint cube
String[][][] values – The new value of the attribute to be set.

void set(MDO.DoubleAttr attr, double value)¶

Set the value of the double attribute.

Parameters

MDO.DoubleAttr attr – Attribute name
double value – New value

void set(MDO.StringAttr attr, String val)¶

Set the value of a String attribute.

Parameters

MDO.StringAttr attr – Attribute name
String val – New value

set(MDO.IntAttr attr, MDOVar[] vars, int[] values)¶

Set the value of a specific attribute associated with specified variables

Parameters

MDO.IntAttr attr – Attribute
MDOVar[] vars – Associated variables
int[] values – The new value of the attribute.

void set(MDO.DoubleAttr attr, MDOVar[] vars, double[] values)¶

Set the value of a specific attribute associated with a specified variable

Parameters

MDO.DoubleAttr attr – Attribute
MDOVar[] vars – Associated variables
double[] values – The new value of the attribute.

void set(MDO.CharAttr attr, MDOVar[] vars, char[] values)¶

Sets the value of a specific attribute associated with a specified variable

Parameters

MDO.CharAttr attr – Attribute
MDOVar[] vars – Associated variables
char[] values – The new value of the attribute.

void setCallback(MDOCallback callback)¶

Set up a user defined callback class object.

Parameters: MDOCallback callback – The user defined callback class object.

void setObjective(MDOExpr expr, int sense)¶

Set the objective function

Parameters

MDOExpr expr – Objective function to be set
int sense – The optimization direction. MDO.MAXIMIZE(-1) refers to maximization and MDO.MINIMIZE(1) refers to minimization. If you enter other values, the current optimization direction will not be changed. The default optimization sense is MDO_MINIMIZE.

void write(String filename)¶

Write model data to a file

Parameters: String filename – The path to file where data serialized. Note that data type and its compression type (optionally) is encoded in the file name suffix. Valid suffixes are .lp, .mps and .qps for model itself, .sol, .bas, .prm and .mst for solution data, basis data, parameter settings and MIP starts. optionally followed by its compression type .gz or .bz2.