com.mysema.query.jpa.hibernate.HibernateQuery Maven / Gradle / Ivy

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/*
 * Copyright 2011, Mysema Ltd
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.mysema.query.jpa.hibernate;

import org.hibernate.Session;
import org.hibernate.StatelessSession;

import com.mysema.query.DefaultQueryMetadata;
import com.mysema.query.QueryMetadata;
import com.mysema.query.jpa.HQLTemplates;
import com.mysema.query.jpa.JPQLTemplates;

/**
 * HibernateQuery is the default implementation of the JPQLQuery interface for Hibernate
 *
 * @author tiwe
 *
 */
public final class HibernateQuery extends AbstractHibernateQuery {

    /**
     * Creates a detached query
     * The query can be attached via the clone method
     */
    public HibernateQuery() {
        super(NoSessionHolder.DEFAULT, HQLTemplates.DEFAULT, new DefaultQueryMetadata());
    }

    /**
     * Creates a new Session bound query
     *
     * @param session
     */
    public HibernateQuery(Session session) {
        super(new DefaultSessionHolder(session), HQLTemplates.DEFAULT, new DefaultQueryMetadata());
    }
    
    /**
     * Creates a new Session bound query
     *
     * @param session
     */
    public HibernateQuery(Session session, QueryMetadata metadata) {
        super(new DefaultSessionHolder(session), HQLTemplates.DEFAULT, metadata);
    }

    /**
     * Creates a new Session bound query
     *
     * @param session
     * @param templates
     */
    public HibernateQuery(Session session, JPQLTemplates templates) {
        super(new DefaultSessionHolder(session), templates, new DefaultQueryMetadata());
    }

    /**
     * Creates a new Stateless session bound query
     *
     * @param session
     */
    public HibernateQuery(StatelessSession session) {
        super(new StatelessSessionHolder(session), HQLTemplates.DEFAULT, new DefaultQueryMetadata());
    }

    /**
     * Creates a new Session bound query
     * 
     * @param session
     * @param templates
     */
    public HibernateQuery(SessionHolder session, JPQLTemplates templates) {
        super(session, templates, new DefaultQueryMetadata());
    }

    /**
     * Creates a new Session bound query
     * 
     * @param session
     * @param templates
     * @param metadata
     */
    public HibernateQuery(SessionHolder session, JPQLTemplates templates, QueryMetadata metadata) {
        super(session, templates, metadata);
    }

    /**
     * Clone the state of this query to a new HibernateQuery instance with the given Session
     *
     * @param session
     * @return
     */
    public HibernateQuery clone(Session session) {
        HibernateQuery q = new HibernateQuery(new DefaultSessionHolder(session), 
                getTemplates(), getMetadata().clone());
        q.cacheable = cacheable;
        q.cacheRegion = cacheRegion;
        q.fetchSize = fetchSize;
        q.flushMode = flushMode;
        q.lockModes.putAll(lockModes);
        q.readOnly = readOnly;
        q.timeout = timeout;
        return q;
    }

}