Class TypeFilterConstraint
- java.lang.Object
-
- org.eclipse.viatra.query.runtime.matchers.psystem.BasePConstraint
-
- org.eclipse.viatra.query.runtime.matchers.psystem.DeferredPConstraint
-
- org.eclipse.viatra.query.runtime.matchers.psystem.VariableDeferredPConstraint
-
- org.eclipse.viatra.query.runtime.matchers.psystem.basicdeferred.TypeFilterConstraint
-
- All Implemented Interfaces:
ITypeConstraint
,ITypeInfoProviderConstraint
,PConstraint
,PTraceable
public class TypeFilterConstraint extends VariableDeferredPConstraint implements ITypeConstraint
Represents a non-enumerable type constraint that asserts that values substituted for the given tuple of variables form a tuple that belongs to a (typically non-enumerable) extensional relation identified by anIInputKey
.The InputKey is typically not enumerable. If it is enumerable, use
TypeConstraint
instead, so that the PConstraint carries over the property of enumerability.
-
-
Nested Class Summary
-
Nested classes/interfaces inherited from interface org.eclipse.viatra.query.runtime.matchers.psystem.ITypeConstraint
ITypeConstraint.TypeConstraintUtil
-
-
Field Summary
-
Fields inherited from class org.eclipse.viatra.query.runtime.matchers.psystem.BasePConstraint
pBody
-
Fields inherited from interface org.eclipse.viatra.query.runtime.matchers.psystem.PConstraint
COMPARE_BY_MONOTONOUS_ID
-
-
Constructor Summary
Constructors Constructor Description TypeFilterConstraint(PBody pBody, Tuple variablesTuple, IInputKey inputKey)
-
Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected void
doReplaceVariable(PVariable obsolete, PVariable replacement)
java.util.Set<PVariable>
getDeducedVariables()
The set of variables whose potential values can be enumerated (once all non-deduced variables have known values).java.util.Set<PVariable>
getDeferringVariables()
TypeJudgement
getEquivalentJudgement()
java.util.Map<java.util.Set<PVariable>,java.util.Set<PVariable>>
getFunctionalDependencies(IQueryMetaContext context)
A (preferably minimal) cover of known functional dependencies between variables.java.util.Set<TypeJudgement>
getImpliedJudgements(IQueryMetaContext context)
Returns type information implied by this constraint.IInputKey
getInputKey()
Tuple
getVariablesTuple()
protected java.lang.String
toStringRest()
-
Methods inherited from class org.eclipse.viatra.query.runtime.matchers.psystem.VariableDeferredPConstraint
isReadyAt
-
Methods inherited from class org.eclipse.viatra.query.runtime.matchers.psystem.BasePConstraint
checkSanity, delete, getAffectedVariables, getBody, getMonotonousID, getPSystem, replaceVariable, toString
-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
-
Methods inherited from interface org.eclipse.viatra.query.runtime.matchers.psystem.PConstraint
checkSanity, delete, getAffectedVariables, getBody, getMonotonousID, replaceVariable
-
-
-
-
Method Detail
-
getVariablesTuple
public Tuple getVariablesTuple()
-
getInputKey
public IInputKey getInputKey()
-
getEquivalentJudgement
public TypeJudgement getEquivalentJudgement()
- Specified by:
getEquivalentJudgement
in interfaceITypeConstraint
-
doReplaceVariable
protected void doReplaceVariable(PVariable obsolete, PVariable replacement)
- Specified by:
doReplaceVariable
in classBasePConstraint
-
getImpliedJudgements
public java.util.Set<TypeJudgement> getImpliedJudgements(IQueryMetaContext context)
Description copied from interface:ITypeInfoProviderConstraint
Returns type information implied by this constraint.- Specified by:
getImpliedJudgements
in interfaceITypeInfoProviderConstraint
-
getDeducedVariables
public java.util.Set<PVariable> getDeducedVariables()
Description copied from interface:PConstraint
The set of variables whose potential values can be enumerated (once all non-deduced variables have known values).- Specified by:
getDeducedVariables
in interfacePConstraint
-
getDeferringVariables
public java.util.Set<PVariable> getDeferringVariables()
- Specified by:
getDeferringVariables
in classVariableDeferredPConstraint
-
toStringRest
protected java.lang.String toStringRest()
- Specified by:
toStringRest
in classBasePConstraint
-
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 interfacePConstraint
- Overrides:
getFunctionalDependencies
in classBasePConstraint
- Returns:
- non-trivial functional dependencies in the form of {variables} --> {variables}, where dependencies with the same lhs are unified.
-
-