/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xindice" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999-2001, The dbXML
* Group, L.L.C., http://www.dbxmlgroup.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*
* $Id: ResourceIteratorImpl.java,v 1.4 2002/11/19 09:21:09 vladimir Exp $
*/
package org.apache.xindice.client.xmldb;
import org.xmldb.api.base.ErrorCodes;
import org.xmldb.api.base.Resource;
import org.xmldb.api.base.ResourceIterator;
import org.xmldb.api.base.XMLDBException;
import java.util.Iterator;
import java.util.List;
/**
* An iterator over a collection of resources.
*
* @author <a href="mailto:vladimir@apache.org">Vladimir R. Bossicard</a>
*/
public class ResourceIteratorImpl implements ResourceIterator {
private Iterator iterator = null;
public ResourceIteratorImpl(List resources) {
if (resources != null) {
this.iterator = resources.iterator();
}
}
public boolean hasMoreResources()
throws XMLDBException {
if (this.iterator != null) {
return this.iterator.hasNext();
}
else {
return false;
}
}
public Resource nextResource()
throws XMLDBException {
if (this.iterator != null) {
if (this.iterator.hasNext()) {
return (Resource) iterator.next();
}
}
throw new XMLDBException(ErrorCodes.NO_SUCH_RESOURCE);
}
}