com.azaptree.services.domain.entity.dao.JDBCVersionedEntityDAOSupport.java Source code

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Here is the source code for com.azaptree.services.domain.entity.dao.JDBCVersionedEntityDAOSupport.java

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package com.azaptree.services.domain.entity.dao;

/*
 * #%L
 * AZAPTREE-DOMAIN-ENTITY
 * %%
 * Copyright (C) 2012 - 2013 AZAPTREE.COM
 * %%
 * 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.
 * #L%
 */

import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.util.Assert;

import com.azaptree.services.domain.entity.VersionedEntity;

public abstract class JDBCVersionedEntityDAOSupport<T extends VersionedEntity> extends JDBCEntityDAOSupport<T>
        implements VersionedEntityDAO<T> {

    public JDBCVersionedEntityDAOSupport(final JdbcTemplate jdbc, String table) {
        super(jdbc, table);
    }

    @Override
    protected void initFieldColumnMappings() {
        super.initFieldColumnMappings();
        fieldColumnMappings.put("EntityVersion", "entity_version");
        fieldColumnMappings.put("EntityCreatedOn", "entity_created_on");
        fieldColumnMappings.put("CreatedByEntityId", "entity_created_by");
        fieldColumnMappings.put("EntityUpdatedOn", "entity_updated_on");
        fieldColumnMappings.put("UpdatedByEntityId", "entity_updated_by");
    }

    /**
     * 
     * @param entity
     * 
     * @throws ObjectNotFoundException
     *             if the entity does not exist in the database
     */
    protected void validateForUpdate(VersionedEntity entity) {
        Assert.notNull(entity, "entity is required");
        Assert.notNull(entity.getEntityId(), "entityId must not be null");
        Assert.notNull(entity.getEntityCreatedOn(), "entityCreatedOn must not be null");
        Assert.isTrue(entity.getEntityVersion() > 0, "entityVersion must be > 0");

        if (!exists(entity.getEntityId())) {
            throw new ObjectNotFoundException();
        }

    }

}