uimaj-2.2.0-incubating/uimaj-core/src/main/java/org/apache/uima/cas/impl/FSIteratorImplBase.java

/*
 * 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.uima.cas.impl;

import org.apache.uima.cas.FSIterator;

/**
 * Base class for FSIterator implementations. Defines the hasNext, next, and remove methods required
 * by java.util.Iterator.
 * 
 * 
 */
public abstract class FSIteratorImplBase implements FSIterator {

  /*
   * (non-Javadoc)
   * 
   * @see java.util.Iterator#hasNext()
   */
  public boolean hasNext() {
    return isValid();
  }

  /*
   * (non-Javadoc)
   * 
   * @see java.util.Iterator#next()
   */
  public Object next() {
    Object result = get();
    moveToNext();
    return result;
  }

  /*
   * (non-Javadoc)
   * 
   * @see java.util.Iterator#remove()
   */
  public void remove() {
    throw new UnsupportedOperationException();
  }

}