io.netty.util.internal.ReadOnlyIterator Maven / Gradle / Ivy
/*
* Copyright 2013 The Netty Project
*
* The Netty Project 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 io.netty.util.internal;
import java.util.Iterator;
public final class ReadOnlyIterator implements Iterator {
private final Iterator iterator;
public ReadOnlyIterator(Iterator iterator) {
if (iterator == null) {
throw new NullPointerException("iterator");
}
this.iterator = iterator;
}
@Override
public boolean hasNext() {
return iterator.hasNext();
}
@Override
public T next() {
return iterator.next();
}
@Override
public void remove() {
throw new UnsupportedOperationException("read-only");
}
}