org.apache.jackrabbit.commons.iterator.NodeTypeIteratorAdapter Maven / Gradle / Ivy
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file 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.jackrabbit.commons.iterator;
import java.util.Collection;
import java.util.Iterator;
import java.util.NoSuchElementException;
import javax.jcr.RangeIterator;
import javax.jcr.nodetype.NodeType;
import javax.jcr.nodetype.NodeTypeIterator;
/**
* Adapter class for turning {@link RangeIterator}s or {@link Iterator}s
* into {@link NodeTypeIterator}s.
*/
public class NodeTypeIteratorAdapter extends RangeIteratorDecorator
implements NodeTypeIterator {
/**
* Static instance of an empty {@link NodeTypeIterator}.
*/
public static final NodeTypeIterator EMPTY =
new NodeTypeIteratorAdapter(RangeIteratorAdapter.EMPTY);
/**
* Creates an adapter for the given {@link RangeIterator}.
*
* @param iterator iterator of {@link NodeType}s
*/
public NodeTypeIteratorAdapter(RangeIterator iterator) {
super(iterator);
}
/**
* Creates an adapter for the given {@link Iterator}.
*
* @param iterator iterator of {@link NodeType}s
*/
public NodeTypeIteratorAdapter(Iterator iterator) {
super(new RangeIteratorAdapter(iterator));
}
/**
* Creates an iterator for the given collection.
*
* @param collection collection of {@link NodeType}s
*/
public NodeTypeIteratorAdapter(Collection collection) {
super(new RangeIteratorAdapter(collection));
}
//----------------------------------------------------< NodeTypeIterator >
/**
* Returns the next node type.
*
* @return next node type
* @throws NoSuchElementException if there is no next node type
*/
public NodeType nextNodeType() throws NoSuchElementException {
return (NodeType) next();
}
}