/*
* ModeShape (http://www.modeshape.org)
*
* 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.modeshape.jcr;
import java.util.Collection;
import java.util.Collections;
import java.util.Iterator;
import javax.jcr.nodetype.NodeType;
import javax.jcr.nodetype.NodeTypeIterator;
import org.modeshape.common.annotation.Immutable;
/**
* Type-safe {@link Iterator} implementation for NodeTypes, as per the JCR specification.
*/
@Immutable
final class JcrNodeTypeIterator implements NodeTypeIterator {
private int size;
private int position;
private Iterator<NodeType> iterator;
JcrNodeTypeIterator( Collection<? extends NodeType> values ) {
this.iterator = Collections.unmodifiableCollection(values).iterator();
this.size = values.size();
this.position = 0;
}
@Override
public NodeType nextNodeType() {
position++;
return iterator.next();
}
@Override
public long getPosition() {
return position;
}
@Override
public long getSize() {
return size;
}
@Override
public void skip( long count ) {
position += count;
while (count-- > 0)
iterator.next();
}
@Override
public boolean hasNext() {
return iterator.hasNext();
}
@Override
public Object next() {
position++;
return iterator.next();
}
@Override
public void remove() {
throw new UnsupportedOperationException("Node types cannot be removed through their iterator");
}
}