org.hibernate.hql.ast.spi.predicate

Class AbstractPredicate<Q>

java.lang.Object

org.hibernate.hql.ast.spi.predicate.AbstractPredicate<Q>

All Implemented Interfaces:

Predicate<Q>

Direct Known Subclasses:

ComparisonPredicate, ConjunctionPredicate, DisjunctionPredicate, InPredicate, IsNullPredicate, LikePredicate, NegationPredicate, RangePredicate, RootPredicate

public abstract class AbstractPredicate<Q>
extends Object
implements Predicate<Q>

Base class for predicate implementations.

Author:

Gunnar Morling

Nested Class Summary

Nested classes/interfaces inherited from interface org.hibernate.hql.ast.spi.predicate.Predicate

Predicate.Type

Constructor Summary

Constructors

Constructor and Description
AbstractPredicate(Predicate.Type type)

Method Summary

Modifier and Type	Method and Description
<T extends Predicate<?>> T	as(Class<T> type) Narrows the type of this predicate down to the given type.
Predicate.Type	getType() Returns the type of this predicate.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.hql.ast.spi.predicate.Predicate

getQuery

Constructor Detail

AbstractPredicate

public AbstractPredicate(Predicate.Type type)

Method Detail

getType

public Predicate.Type getType()

Description copied from interface: Predicate

Returns the type of this predicate.

Specified by:

getType in interface Predicate<Q>

Returns:

the type of this predicate

as

public <T extends Predicate<?>> T as(Class<T> type)

Description copied from interface: Predicate

Narrows the type of this predicate down to the given type. The type should be checked before via Predicate.getType().

Specified by:

as in interface Predicate<Q>

Parameters:

type - the type to narrow down to

Returns:

this predicate, narrowed down to the given type