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/*
 * Copyright 2011 Global Biodiversity Information Facility (GBIF)
 *
 * 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 org.gbif.common.mybatis;

import com.mchange.v2.c3p0.ComboPooledDataSource;
import org.apache.ibatis.datasource.DataSourceFactory;
import org.apache.ibatis.datasource.unpooled.UnpooledDataSourceFactory;

/**
 * A simple {@link DataSourceFactory} for MyBatis to create a connection pool using C3P0.
 * <p/>
 * The properties to use in the MyBatis configuration are different from the included default pooled data source.
 * <p/>
 * Make sure to specify at least:
 * <ul>
 * <li>jdbcUrl</li>
 * <li>driverClass (if it is not preloaded somehow)</li>
 * </ul>
 * <p/>
 * But you usually also want:
 * <ul>
 * <li>user</li>
 * <li>password</li>
 * </ul>
 * <p/>
 * A sample usage would look like this:
 * <pre>
 * {@code
 *
 * <dataSource type="org.gbif.common.mybatis.C3P0DataSourceFactory">
 *   <property name="driverClass" value="org.postgresql.Driver"/>
 *   <property name="jdbcUrl" value="${url}"/>
 *   <property name="user" value="${username}"/>
 *   <property name="password" value="${password}"/>
 *   <property name="idleConnectionTestPeriod" value="60"/>
 *   <property name="maxPoolSize" value="20"/>
 *   <property name="maxIdleTime" value="600"/>
 *   <property name="preferredTestQuery" value="SELECT 1"/>
 * </dataSource>
 * }
 * </pre>
 *
 * @see <a href="http://www.mchange.com/projects/c3p0/index.html#configuration_properties">C3P0 Configuration</a>
 */
public class C3P0DataSourceFactory extends UnpooledDataSourceFactory {

  public C3P0DataSourceFactory() {
    this.dataSource = new ComboPooledDataSource();
  }
}