/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* JBoss, Home of Professional Open Source
* Copyright 2013 Red Hat Inc. and/or its affiliates and other contributors
* as indicated by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* 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, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* 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,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
package org.hibernate.ogm.dialect.mongodb.query.parsing;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.hql.ast.spi.AstProcessingChain;
import org.hibernate.hql.ast.spi.AstProcessor;
import org.hibernate.hql.ast.spi.EntityNamesResolver;
import org.hibernate.hql.ast.spi.QueryRendererProcessor;
import org.hibernate.hql.ast.spi.QueryResolverProcessor;
/**
* AST processing chain for creating MongoDB queries (in form of {@link com.mongodb.DBObject}s from HQL queries.
*
* @author Gunnar Morling
*/
public class MongoDBProcessingChain implements AstProcessingChain<MongoDBQueryParsingResult> {
private final QueryResolverProcessor resolverProcessor;
private final QueryRendererProcessor rendererProcessor;
private final MongoDBQueryRendererDelegate rendererDelegate;
public MongoDBProcessingChain(SessionFactoryImplementor sessionFactory, EntityNamesResolver entityNames, Map<String, Object> namedParameters) {
this.resolverProcessor = new QueryResolverProcessor( new MongoDBQueryResolverDelegate() );
MongoDBPropertyHelper propertyHelper = new MongoDBPropertyHelper( sessionFactory );
MongoDBQueryRendererDelegate rendererDelegate = new MongoDBQueryRendererDelegate(
entityNames,
propertyHelper,
namedParameters );
this.rendererProcessor = new QueryRendererProcessor( rendererDelegate );
this.rendererDelegate = rendererDelegate;
}
@Override
public Iterator<AstProcessor> iterator() {
return Arrays.asList( resolverProcessor, rendererProcessor ).iterator();
}
@Override
public MongoDBQueryParsingResult getResult() {
return rendererDelegate.getResult();
}
}