gate.jape.constraint
Class ConstraintFactory

java.lang.Object
  gate.jape.constraint.ConstraintFactory

public class ConstraintFactory
extends Object

Creates Jape Constraints and associated ConstraintPredicates.

Version:

$Revision$

Author:

esword

Field Summary

protected Map<String,Class<? extends AnnotationAccessor>>	metaPropertyMap
protected Map<String,Class<? extends ConstraintPredicate>>	operatorImplMap

Constructor Summary

ConstraintFactory()

Method Summary

void	addMetaProperty(String metaProperty, Class<? extends AnnotationAccessor> clazz)
void	addOperator(String operator, Class<? extends ConstraintPredicate> clazz)
Constraint	createConstraint(String annotType) Create a new constraint for the given annotation type
AnnotationAccessor	createDefaultAccessor(Object key)
AnnotationAccessor	createMetaPropertyAccessor(String propName)
ConstraintPredicate	createPredicate(AnnotationAccessor accessor, Object value)
ConstraintPredicate	createPredicate(String operator, AnnotationAccessor accessor, Object value)
ConstraintPredicate	createPredicate(String name, Object value) Create a constraint predicate using the default equals predicate.
protected void	initMetaPropertyMap()
protected void	initOperatorMap()

Methods inherited from class java.lang.Object

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

Field Detail

operatorImplMap

protected Map<String,Class<? extends ConstraintPredicate>> operatorImplMap

metaPropertyMap

protected Map<String,Class<? extends AnnotationAccessor>> metaPropertyMap

Constructor Detail

ConstraintFactory

public ConstraintFactory()

Method Detail

initOperatorMap

protected void initOperatorMap()

initMetaPropertyMap

protected void initMetaPropertyMap()

addOperator

public void addOperator(String operator,
                        Class<? extends ConstraintPredicate> clazz)

addMetaProperty

public void addMetaProperty(String metaProperty,
                            Class<? extends AnnotationAccessor> clazz)

createConstraint

public Constraint createConstraint(String annotType)

Create a new constraint for the given annotation type

Parameters:

annotType -

Returns:

createDefaultAccessor

public AnnotationAccessor createDefaultAccessor(Object key)

createMetaPropertyAccessor

public AnnotationAccessor createMetaPropertyAccessor(String propName)

createPredicate

public ConstraintPredicate createPredicate(String name,
                                           Object value)

Create a constraint predicate using the default equals predicate.

Parameters:

name - feature name associated with the predicate

value - value associated with the predicate

Returns:

createPredicate

public ConstraintPredicate createPredicate(AnnotationAccessor accessor,
                                           Object value)

createPredicate

public ConstraintPredicate createPredicate(String operator,
                                           AnnotationAccessor accessor,
                                           Object value)