fr.openwide.core.jpa.hibernate.dialect.PostgreSQLAdvancedDialect.java Source code

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Here is the source code for fr.openwide.core.jpa.hibernate.dialect.PostgreSQLAdvancedDialect.java

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/*
 * Copyright (C) 2009-2010 Open Wide
 * Contact: contact@openwide.fr
 * 
 * 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 fr.openwide.core.jpa.hibernate.dialect;

import org.hibernate.dialect.PostgreSQL82Dialect;
import org.hibernate.id.IdentifierGenerator;

import fr.openwide.core.jpa.hibernate.dialect.function.PostgreSQLIntervalFunction;
import fr.openwide.core.jpa.hibernate.dialect.function.PostgreSQLRegexpOperatorFunction;

/**
 * <p>Surcharge du dialecte PostgreSQL qui permet de grer les squences par table plutt que d'avoir une seule squence
 * globale pour tous les objets.</p>
 * 
 * <p>Les squences sont gres via des types serial et ce dialect suit donc les conventions de nommage de squence de
 * PostgreSQL.</p>
 * 
 * <p>Hibernate est assez peu finaud sur la gestion des squences PostgreSQL.</p>
 * 
 * <p>Par ailleurs, il pose maintenant l'architecture pour nous permettre d'utiliser des choses plus proches du SQL via QueryDSL.</p>
 * 
 * @author Open Wide
 */
public class PostgreSQLAdvancedDialect extends PostgreSQL82Dialect {

    public PostgreSQLAdvancedDialect() {
        registerFunction("interval", new PostgreSQLIntervalFunction());
        registerFunction("regexp_operator", new PostgreSQLRegexpOperatorFunction());
    }

    @Override
    public Class<? extends IdentifierGenerator> getNativeIdentifierGeneratorClass() {
        return PostgreSQLSequenceStyleGenerator.class;
    }

}