Clover coverage report - dom4j - 1.5
Coverage timestamp: vr sep 3 2004 20:47:03 GMT+01:00
file stats: LOC: 128   Methods: 5
NCLOC: 42   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
FilterIterator.java 0% 0% 0% 0%
coverage
 1    /*
 2    * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved.
 3    *
 4    * This software is open source.
 5    * See the bottom of this file for the licence.
 6    *
 7    * $Id: FilterIterator.java,v 1.8 2004/06/25 08:03:41 maartenc Exp $
 8    */
 9   
 10    package org.dom4j.tree;
 11   
 12    import java.util.Iterator;
 13    import java.util.NoSuchElementException;
 14   
 15    /** <p><code>FilterIterator</code> is an abstract base class which is useful
 16    * for implementors of {@link Iterator} which filter an existing iterator.
 17    *
 18    * @author <a href="mailto:james.strachan@metastuff.com">James Strachan</a>
 19    * @version $Revision: 1.8 $
 20    * @deprecated THIS CLASS WILL BE REMOVED IN dom4j-1.6 !!
 21    */
 22    public abstract class FilterIterator implements Iterator {
 23   
 24    protected Iterator proxy;
 25    private Object next;
 26    private boolean first = true;
 27   
 28  0 public FilterIterator(Iterator proxy) {
 29  0 this.proxy = proxy;
 30    }
 31   
 32   
 33  0 public boolean hasNext() {
 34  0 if ( first ) {
 35  0 next = findNext();
 36  0 first = false;
 37    }
 38  0 return next != null;
 39    }
 40   
 41  0 public Object next() throws NoSuchElementException {
 42  0 if ( ! hasNext() ) {
 43  0 throw new NoSuchElementException();
 44    }
 45  0 Object answer = this.next;
 46  0 this.next = findNext();
 47  0 return answer;
 48    }
 49   
 50    /**
 51    * Always throws UnsupportedOperationException as this class
 52    * does look-ahead with its internal iterator.
 53    *
 54    * @throws UnsupportedOperationException always
 55    */
 56  0 public void remove() {
 57  0 throw new UnsupportedOperationException();
 58    }
 59   
 60    /** Filter method to perform some matching on the given element.
 61    *
 62    * @return true if the given element matches the filter
 63    * and should be appear in the iteration
 64    */
 65    protected abstract boolean matches(Object element);
 66   
 67   
 68  0 protected Object findNext() {
 69  0 if ( proxy != null ) {
 70  0 while (proxy.hasNext()) {
 71  0 Object next = proxy.next();
 72  0 if ( next != null && matches(next) ) {
 73  0 return next;
 74    }
 75    }
 76  0 proxy = null;
 77    }
 78  0 return null;
 79    }
 80    }
 81   
 82   
 83   
 84   
 85    /*
 86    * Redistribution and use of this software and associated documentation
 87    * ("Software"), with or without modification, are permitted provided
 88    * that the following conditions are met:
 89    *
 90    * 1. Redistributions of source code must retain copyright
 91    * statements and notices. Redistributions must also contain a
 92    * copy of this document.
 93    *
 94    * 2. Redistributions in binary form must reproduce the
 95    * above copyright notice, this list of conditions and the
 96    * following disclaimer in the documentation and/or other
 97    * materials provided with the distribution.
 98    *
 99    * 3. The name "DOM4J" must not be used to endorse or promote
 100    * products derived from this Software without prior written
 101    * permission of MetaStuff, Ltd. For written permission,
 102    * please contact dom4j-info@metastuff.com.
 103    *
 104    * 4. Products derived from this Software may not be called "DOM4J"
 105    * nor may "DOM4J" appear in their names without prior written
 106    * permission of MetaStuff, Ltd. DOM4J is a registered
 107    * trademark of MetaStuff, Ltd.
 108    *
 109    * 5. Due credit should be given to the DOM4J Project -
 110    * http://www.dom4j.org
 111    *
 112    * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS
 113    * ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 114    * NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 115    * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
 116    * METASTUFF, LTD. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 117    * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 118    * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 119    * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 120    * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 121    * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 122    * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 123    * OF THE POSSIBILITY OF SUCH DAMAGE.
 124    *
 125    * Copyright 2001-2004 (C) MetaStuff, Ltd. All Rights Reserved.
 126    *
 127    * $Id: FilterIterator.java,v 1.8 2004/06/25 08:03:41 maartenc Exp $
 128    */