org.ojalgo.optimisation

Class ExpressionsBasedModel.Presolver

java.lang.Object

org.ojalgo.optimisation.ExpressionsBasedModel.Presolver

All Implemented Interfaces:

Comparable<ExpressionsBasedModel.Presolver>

Enclosing class:

ExpressionsBasedModel

public abstract static class ExpressionsBasedModel.Presolver
extends Object

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Presolver(int executionOrder)

Method Summary

Modifier and Type	Method and Description
int	compareTo(S reference)
boolean	equals(Object obj)
int	hashCode()
abstract boolean	simplify(Expression expression, Set<Structure1D.IntIndex> remaining, BigDecimal lower, BigDecimal upper, NumberContext precision)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Presolver

protected Presolver(int executionOrder)

Method Detail

simplify

public abstract boolean simplify(Expression expression,
                                 Set<Structure1D.IntIndex> remaining,
                                 BigDecimal lower,
                                 BigDecimal upper,
                                 NumberContext precision)

Parameters:

remaining - TODO

lower - TODO

upper - TODO

Returns:

True if any model entity was modified so that a re-run of the presolvers is necessary - typically when/if a variable was fixed.

compareTo

public final int compareTo(S reference)

Specified by:

compareTo in interface Comparable<S extends org.ojalgo.optimisation.ExpressionsBasedModel.Simplifier<?,?>>

equals

public final boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public final int hashCode()

Overrides:

hashCode in class Object