gurobi
Class GRBQConstr

java.lang.Object
  extended by gurobi.GRBQConstr

public class GRBQConstr
extends java.lang.Object

Gurobi quadratic constraint object. Quadratic constraints are always associated with a particular model. You create a quadratic constraint object by adding a quadratic constraint to a model (using GRBModel.addQConstr), rather than by using a GRBQConstr constructor.

The methods on quadratic constraint objects are used to get and set constraint attributes. For example, quadratic constraint right-hand sides can be queried by calling get(GRB.DoubleAttr.QCRHS). Note, however, that it is generally more efficient to query attributes for a set of constraints at once. This is done using the attribute query method on the GRBModel object (GRBModel.get).


Method Summary
protected  void finalize()
           
 char get(GRB.CharAttr attr)
          Query the value of a char-valued attribute.
 double get(GRB.DoubleAttr attr)
          Query the value of a double-valued attribute.
 int get(GRB.IntAttr attr)
          Query the value of an int-valued attribute.
 java.lang.String get(GRB.StringAttr attr)
          Query the value of a string-valued attribute.
 void set(GRB.CharAttr attr, char newval)
          Set the value of a char-valued attribute.
 void set(GRB.DoubleAttr attr, double newval)
          Set the value of a double-valued attribute.
 void set(GRB.StringAttr attr, java.lang.String newval)
          Set the value of a string-valued attribute.
 
Methods inherited from class java.lang.Object
clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

finalize

protected void finalize()
Overrides:
finalize in class java.lang.Object

get

public char get(GRB.CharAttr attr)
         throws GRBException
Query the value of a char-valued attribute.

Parameters:
attr - The attribute being queried.
Returns:
The current value of the requested attribute.
Throws:
GRBException

get

public int get(GRB.IntAttr attr)
        throws GRBException
Query the value of an int-valued attribute.

Parameters:
attr - The attribute being queried.
Returns:
The current value of the requested attribute.
Throws:
GRBException

get

public double get(GRB.DoubleAttr attr)
           throws GRBException
Query the value of a double-valued attribute.

Parameters:
attr - The attribute being queried.
Returns:
The current value of the requested attribute.
Throws:
GRBException

get

public java.lang.String get(GRB.StringAttr attr)
                     throws GRBException
Query the value of a string-valued attribute.

Parameters:
attr - The attribute being queried.
Returns:
The current value of the requested attribute.
Throws:
GRBException

set

public void set(GRB.CharAttr attr,
                char newval)
         throws GRBException
Set the value of a char-valued attribute.

Parameters:
attr - The attribute being modified.
newval - The desired new value of the attribute.
Throws:
GRBException

set

public void set(GRB.DoubleAttr attr,
                double newval)
         throws GRBException
Set the value of a double-valued attribute.

Parameters:
attr - The attribute being modified.
newval - The desired new value of the attribute.
Throws:
GRBException

set

public void set(GRB.StringAttr attr,
                java.lang.String newval)
         throws GRBException
Set the value of a string-valued attribute.

Parameters:
attr - The attribute being modified.
newval - The desired new value of the attribute.
Throws:
GRBException