org.apache.openjpa.xmlstore.XMLConfiguration Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.openjpa.xmlstore;
import org.apache.openjpa.conf.OpenJPAConfigurationImpl;
import org.apache.openjpa.kernel.Broker;
import org.apache.openjpa.kernel.BrokerFactory;
import org.apache.openjpa.lib.conf.ProductDerivations;
/**
* Configuration implementation for the XML file store. Each unique
* {@link BrokerFactory} has a distinct configuration instance.
* Thus this configuration is shared by all {@link Broker}s
* associated with the owning factory, and is a good place to provide access
* to shared resources. Note that each broker has its own
* {@link org.apache.openjpa.abstractstore.AbstractStoreManager}.
*/
public class XMLConfiguration
extends OpenJPAConfigurationImpl {
// shared resources
private XMLStore _store;
private XMLFileHandler _handler;
/**
* Default constructor.
*/
public XMLConfiguration() {
super(false, false);
// override the default and the current value of lock manager plugin
// from our superclass to use the single-jvm lock manager
lockManagerPlugin.setDefault("version");
lockManagerPlugin.setString("version");
ProductDerivations.beforeConfigurationLoad(this);
loadGlobals();
}
/**
* Return the {@link XMLFileHandler} associated with this configuration.
*/
public synchronized XMLFileHandler getFileHandler() {
if (_handler == null)
_handler = new XMLFileHandler(this);
return _handler;
}
/**
* Return the {@link XMLStore} associated with this configuration.
*/
public synchronized XMLStore getStore() {
if (_store == null)
_store = new XMLStore(this);
return _store;
}
}