org.eclipse.incquery.runtime.matchers.psystem.basicenumerables

Class ConstantValue

java.lang.Object

org.eclipse.incquery.runtime.matchers.psystem.BasePConstraint

org.eclipse.incquery.runtime.matchers.psystem.EnumerablePConstraint

org.eclipse.incquery.runtime.matchers.psystem.KeyedEnumerablePConstraint<java.lang.Object>

org.eclipse.incquery.runtime.matchers.psystem.basicenumerables.ConstantValue

All Implemented Interfaces:

PConstraint

public class ConstantValue
extends KeyedEnumerablePConstraint<java.lang.Object>

Author:

Gabor Bergmann

Nested Class Summary

Nested classes/interfaces inherited from interface org.eclipse.incquery.runtime.matchers.psystem.PConstraint

PConstraint.CompareByMonotonousID

Constructor Summary

Constructors

Constructor and Description
ConstantValue(PBody pBody, PVariable variable, java.lang.Object value)

Method Summary

Modifier and Type	Method and Description
java.util.Map<java.util.Set<PVariable>,java.util.Set<PVariable>>	getFunctionalDependencies(IQueryMetaContext context) A (preferably minimal) cover of known functional dependencies between variables.

Methods inherited from class org.eclipse.incquery.runtime.matchers.psystem.KeyedEnumerablePConstraint

getSupplierKey

Methods inherited from class org.eclipse.incquery.runtime.matchers.psystem.EnumerablePConstraint

doReplaceVariable, getDeducedVariables, getVariableInTuple, getVariablesTuple

Methods inherited from class org.eclipse.incquery.runtime.matchers.psystem.BasePConstraint

checkSanity, delete, getAffectedVariables, getMonotonousID, getPSystem, replaceVariable, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ConstantValue

public ConstantValue(PBody pBody,
                     PVariable variable,
                     java.lang.Object value)

Method Detail

getFunctionalDependencies

public java.util.Map<java.util.Set<PVariable>,java.util.Set<PVariable>> getFunctionalDependencies(IQueryMetaContext context)

Description copied from interface: PConstraint

A (preferably minimal) cover of known functional dependencies between variables.

Specified by:

getFunctionalDependencies in interface PConstraint

Overrides:

getFunctionalDependencies in class BasePConstraint

Returns:

non-trivial functional dependencies in the form of {variables} --> {variables}, where dependencies with the same lhs are unified.