Package tools.refinery.interpreter.matchers.psystem.basicenumerables

Class TypeConstraint

java.lang.Object

tools.refinery.interpreter.matchers.psystem.BasePConstraint

tools.refinery.interpreter.matchers.psystem.EnumerablePConstraint

tools.refinery.interpreter.matchers.psystem.KeyedEnumerablePConstraint<IInputKey>

tools.refinery.interpreter.matchers.psystem.basicenumerables.TypeConstraint

All Implemented Interfaces:

ITypeConstraint, ITypeInfoProviderConstraint, PConstraint, PTraceable

public class TypeConstraint
extends KeyedEnumerablePConstraint<IInputKey>
implements ITypeConstraint

Represents an enumerable type constraint that asserts that values substituted for the given tuple of variables form a tuple that belongs to an enumerable extensional relation identified by an IInputKey.

The InputKey must be enumerable!

Nested Class Summary

Nested classes/interfaces inherited from interface tools.refinery.interpreter.matchers.psystem.ITypeConstraint

ITypeConstraint.TypeConstraintUtil

Field Summary

Fields inherited from class tools.refinery.interpreter.matchers.psystem.KeyedEnumerablePConstraint

supplierKey

Fields inherited from class tools.refinery.interpreter.matchers.psystem.EnumerablePConstraint

variablesTuple

Fields inherited from class tools.refinery.interpreter.matchers.psystem.BasePConstraint

pBody

Fields inherited from interface tools.refinery.interpreter.matchers.psystem.PConstraint

COMPARE_BY_MONOTONOUS_ID

Constructor Summary

Constructors

Constructor	Description
TypeConstraint(PBody pBody, Tuple variablesTuple, IInputKey inputKey)

Method Summary

Modifier and Type	Method	Description
void	doReplaceVariable(PVariable obsolete, PVariable replacement)
TypeJudgement	getEquivalentJudgement()
Map<Set<PVariable>,Set<PVariable>>	getFunctionalDependencies(IQueryMetaContext context)	A (preferably minimal) cover of known functional dependencies between variables.
Set<TypeJudgement>	getImpliedJudgements(IQueryMetaContext context)	Returns type information implied by this constraint.
protected String	keyToString()

Methods inherited from class tools.refinery.interpreter.matchers.psystem.KeyedEnumerablePConstraint

getSupplierKey, toStringRestRest

Methods inherited from class tools.refinery.interpreter.matchers.psystem.EnumerablePConstraint

getDeducedVariables, getVariableInTuple, getVariablesTuple, toStringRest

Methods inherited from class tools.refinery.interpreter.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 tools.refinery.interpreter.matchers.psystem.PConstraint

checkSanity, delete, getAffectedVariables, getBody, getDeducedVariables, getMonotonousID, replaceVariable

Constructor Details

TypeConstraint

public TypeConstraint(PBody pBody,
 Tuple variablesTuple,
 IInputKey inputKey)

Method Details

keyToString

protected String keyToString()

Specified by:

keyToString in class KeyedEnumerablePConstraint<IInputKey>

getEquivalentJudgement

public TypeJudgement getEquivalentJudgement()

Specified by:

getEquivalentJudgement in interface ITypeConstraint

getImpliedJudgements

public Set<TypeJudgement> getImpliedJudgements(IQueryMetaContext context)

Description copied from interface: ITypeInfoProviderConstraint

Returns type information implied by this constraint.

Specified by:

getImpliedJudgements in interface ITypeInfoProviderConstraint

getFunctionalDependencies

public Map<Set<PVariable>,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.

doReplaceVariable

public void doReplaceVariable(PVariable obsolete,
 PVariable replacement)

Overrides:

doReplaceVariable in class EnumerablePConstraint