com.link_intersystems.util.UnmodifiableListIterator Maven / Gradle / Ivy
/**
* Copyright 2011 Link Intersystems GmbH
*
* 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 com.link_intersystems.util;
import java.util.List;
import java.util.ListIterator;
/**
* An implementation of a {@link ListIterator} that throws
* {@link UnsupportedOperationException} for operations that would modify the
* underlying {@link List}.
*
*
* @author René Link [rene.link@link-
* intersystems.com]
*
* @param
*/
public class UnmodifiableListIterator implements ListIterator {
private final ListIterator listIterator;
public UnmodifiableListIterator(ListIterator listIterator) {
this.listIterator = listIterator;
}
/**
* @param o
* @see java.util.ListIterator#add(java.lang.Object)
* @throws UnsupportedOperationException
*/
public void add(E o) {
throw new UnsupportedOperationException();
}
/**
* @return
* @see java.util.ListIterator#hasNext()
*/
public boolean hasNext() {
return listIterator.hasNext();
}
/**
* @return
* @see java.util.ListIterator#hasPrevious()
*/
public boolean hasPrevious() {
return listIterator.hasPrevious();
}
/**
* @return
* @see java.util.ListIterator#next()
*/
public E next() {
return listIterator.next();
}
/**
* @return
* @see java.util.ListIterator#nextIndex()
*/
public int nextIndex() {
return listIterator.nextIndex();
}
/**
* @return
* @see java.util.ListIterator#previous()
*/
public E previous() {
return listIterator.previous();
}
/**
* @return
* @see java.util.ListIterator#previousIndex()
*/
public int previousIndex() {
return listIterator.previousIndex();
}
/**
*
* @see java.util.ListIterator#remove()
* @throws UnsupportedOperationException
*/
public void remove() {
throw new UnsupportedOperationException();
}
/**
* @param o
* @see java.util.ListIterator#set(java.lang.Object)
* @throws UnsupportedOperationException
*/
public void set(E o) {
throw new UnsupportedOperationException();
}
}