package org.apache.xindice.examples;
/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* 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.
*
* CVS $Id: AbstractExample.java,v 1.3 2004/02/08 01:19:43 vgritsenko Exp $
*/
import org.apache.xindice.util.XindiceException;
import org.xmldb.api.DatabaseManager;
import org.xmldb.api.base.Collection;
import org.xmldb.api.base.Database;
import org.xmldb.api.base.XMLDBException;
/**
* Simple XML:DB API Example
*/
public abstract class AbstractExample {
private static boolean alreadyInitialized = false;
protected static void ensureInitialized()
throws ClassNotFoundException, InstantiationException, IllegalAccessException,
XMLDBException {
if (alreadyInitialized) {
return;
}
String driver = "org.apache.xindice.client.xmldb.DatabaseImpl";
Class driverClass = Class.forName(driver);
Database database = (Database) driverClass.newInstance();
DatabaseManager.registerDatabase(database);
alreadyInitialized = true;
}
protected static Collection getCollection(String collectionUri)
throws ClassNotFoundException, InstantiationException, IllegalAccessException,
XMLDBException, XindiceException {
ensureInitialized();
Collection collection = DatabaseManager.getCollection(collectionUri);
if (collection == null) {
throw new XindiceException("DatabaseManager.getCollection(" + collectionUri + ") returned null.");
}
return collection;
}
}