/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2009 by Red Hat Inc and/or its affiliates or by
* third-party contributors as indicated by either @author tags or express
* copyright attribution statements applied by the authors. All
* third-party contributions are distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.jpa.criteria.expression;
import java.io.Serializable;
import javax.persistence.criteria.ParameterExpression;
import org.hibernate.jpa.criteria.CriteriaBuilderImpl;
import org.hibernate.jpa.criteria.ParameterRegistry;
import org.hibernate.jpa.criteria.compile.ExplicitParameterInfo;
import org.hibernate.jpa.criteria.compile.RenderingContext;
/**
* Defines a parameter specification, or the information about a parameter (where it occurs, what is
* its type, etc).
*
* @author Steve Ebersole
*/
public class ParameterExpressionImpl<T>
extends ExpressionImpl<T>
implements ParameterExpression<T>, Serializable {
private final String name;
private final Integer position;
public ParameterExpressionImpl(
CriteriaBuilderImpl criteriaBuilder,
Class<T> javaType,
String name) {
super( criteriaBuilder, javaType );
this.name = name;
this.position = null;
}
public ParameterExpressionImpl(
CriteriaBuilderImpl criteriaBuilder,
Class<T> javaType,
Integer position) {
super( criteriaBuilder, javaType );
this.name = null;
this.position = position;
}
public ParameterExpressionImpl(
CriteriaBuilderImpl criteriaBuilder,
Class<T> javaType) {
super( criteriaBuilder, javaType );
this.name = null;
this.position = null;
}
public String getName() {
return name;
}
public Integer getPosition() {
return position;
}
public Class<T> getParameterType() {
return getJavaType();
}
public void registerParameters(ParameterRegistry registry) {
registry.registerParameter( this );
}
public String render(RenderingContext renderingContext) {
final ExplicitParameterInfo parameterInfo = renderingContext.registerExplicitParameter( this );
return parameterInfo.render();
}
public String renderProjection(RenderingContext renderingContext) {
return render( renderingContext );
}
}