org.datanucleus.jpa.criteria
Class PredicateImpl

java.lang.Object
  org.datanucleus.jpa.criteria.ExpressionImpl<java.lang.Boolean>
      org.datanucleus.jpa.criteria.PredicateImpl

All Implemented Interfaces:

javax.persistence.criteria.Expression<java.lang.Boolean>, javax.persistence.criteria.Predicate, javax.persistence.criteria.Selection<java.lang.Boolean>, javax.persistence.TupleElement<java.lang.Boolean>

public class PredicateImpl
extends ExpressionImpl<java.lang.Boolean>
implements javax.persistence.criteria.Predicate

Implementation of JPA2 Criteria "Predicate".

Nested Class Summary

Nested classes/interfaces inherited from interface javax.persistence.criteria.Predicate

javax.persistence.criteria.Predicate.BooleanOperator

Field Summary

protected java.util.List<javax.persistence.criteria.Predicate>

exprs

Constructor Summary

PredicateImpl()

PredicateImpl(javax.persistence.criteria.Predicate.BooleanOperator op)

Method Summary

PredicateImpl	append(javax.persistence.criteria.Predicate pred) Convenience method to add on the supplied predicate to this one
java.util.List<javax.persistence.criteria.Expression<java.lang.Boolean>>	getExpressions()
javax.persistence.criteria.Predicate.BooleanOperator	getOperator()
org.datanucleus.query.expression.Expression	getQueryExpression() Accessor for the underlying DataNucleus query expression for this predicate.
boolean	isNegated()
javax.persistence.criteria.Predicate	not()
java.lang.String	toString() Method to print out the predicate as it would appear in JPQL single-string form.

Methods inherited from class org.datanucleus.jpa.criteria.ExpressionImpl

alias, as, getAlias, getCompoundSelectionItems, getJavaType, in, in, in, in, isCompoundSelection, isNotNull, isNull

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.persistence.criteria.Expression

as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Field Detail

exprs

protected final java.util.List<javax.persistence.criteria.Predicate> exprs

Constructor Detail

PredicateImpl

public PredicateImpl()

PredicateImpl

public PredicateImpl(javax.persistence.criteria.Predicate.BooleanOperator op)

Method Detail

not

public javax.persistence.criteria.Predicate not()

Specified by:

not in interface javax.persistence.criteria.Predicate

getExpressions

public java.util.List<javax.persistence.criteria.Expression<java.lang.Boolean>> getExpressions()

Specified by:

getExpressions in interface javax.persistence.criteria.Predicate

getOperator

public javax.persistence.criteria.Predicate.BooleanOperator getOperator()

Specified by:

getOperator in interface javax.persistence.criteria.Predicate

isNegated

public boolean isNegated()

Specified by:

isNegated in interface javax.persistence.criteria.Predicate

append

public PredicateImpl append(javax.persistence.criteria.Predicate pred)

Convenience method to add on the supplied predicate to this one

Parameters:

pred - The supplied predicate to append to this

Returns:

The resultant predicate

getQueryExpression

public org.datanucleus.query.expression.Expression getQueryExpression()

Accessor for the underlying DataNucleus query expression for this predicate.

Overrides:

getQueryExpression in class ExpressionImpl<java.lang.Boolean>

Returns:

The DataNucleus query expression

toString

public java.lang.String toString()

Method to print out the predicate as it would appear in JPQL single-string form.

Overrides:

toString in class ExpressionImpl<java.lang.Boolean>

Returns:

The JPQL single string form of this predicate