/*

  * 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.commons.collections.primitives.adapters;

 import java.util.Iterator;

 import org.apache.commons.collections.primitives.BooleanIterator;

 /**

  * Adapts a {@link Boolean Boolean}-valued {@link java.util.Iterator Iterator}

  * to the {@link org.apache.commons.collections.primitives.BooleanIterator

  * BooleanIterator} interface.

  * <p />

  * This implementation delegates most methods to the provided {@link

  * java.util.Iterator Iterator} implementation in the "obvious" way.

  *

  * @since Commons Primitives 1.2

  * @version $Revision: 480462 $

  */

 public class IteratorBooleanIterator implements BooleanIterator {

     /**

      * Create an {@link org.apache.commons.collections.primitives.BooleanIterator

      * BooleanIterator} wrapping the specified {@link java.util.Iterator

      * Iterator}.  When the given <i>iterator</i> is <code>null</code>, returns

      * <code>null</code>.

      * 

      * @param iterator the (possibly <code>null</code>)

      *        {@link java.util.Iterator Iterator} to wrap

      * @return an {@link

      * org.apache.commons.collections.primitives.BooleanIterator BooleanIterator}

      * wrapping the given <i>iterator</i>, or <code>null</code> when <i>

      * iterator</i> is <code>null</code>.

      */

     public static BooleanIterator wrap(Iterator iterator) {

         return null == iterator ? null : new IteratorBooleanIterator(iterator);

     }

     /**

      * Creates an {@link org.apache.commons.collections.primitives.BooleanIterator

      * BooleanIterator} wrapping the specified {@link java.util.Iterator Iterator}.

      * @see #wrap

      */

     public IteratorBooleanIterator(Iterator iterator) {

         _iterator = iterator;

     }

     public boolean hasNext() {

         return _iterator.hasNext();

     }

     public boolean next() {

         return ((Boolean)(_iterator.next())).booleanValue();

     }

     public void remove() {

         _iterator.remove();

     }

     private Iterator _iterator = null;

 }