code: /*
   * 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.
   */
  /*
   * $Id$
   */
  
  package org.apache.xalan.xsltc.dom;
  
  import org.apache.xml.dtm.DTMAxisIterator;
  
  /**
   * Extends a StepIterator by adding the ability to filter nodes. It 
   * uses filters similar to those of a FilterIterator.
   * @author Jacek Ambroziak
   * @author Santiago Pericas-Geertsen
   * @author Morten Jorgensen
   */
  public final class FilteredStepIterator extends StepIterator {
  
      private Filter _filter;
  
      public FilteredStepIterator(DTMAxisIterator source,
  				DTMAxisIterator iterator,
  				Filter filter) {
  	super(source, iterator);
  	_filter = filter;
      }
  
      public int next() {
  	int node;
  	while ((node = super.next()) != END) {
  	    if (_filter.test(node)) {
  		return returnNode(node);
  	    }
  	}
  	return node;
      }
  
  }
  