Clover coverage report - dom4j - 1.6.1
Coverage timestamp: ma mei 16 2005 14:23:01 GMT+01:00
file stats: LOC: 129   Methods: 5
NCLOC: 42   Classes: 1
 
 Source file Conditionals Statements Methods TOTAL
FilterIterator.java 0% 0% 0% 0%
coverage
 1    /*
 2    * Copyright 2001-2005 (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   
 8    package org.dom4j.tree;
 9   
 10    import java.util.Iterator;
 11    import java.util.NoSuchElementException;
 12   
 13    /**
 14    * <p>
 15    * <code>FilterIterator</code> is an abstract base class which is useful for
 16    * implementors of {@link Iterator}which filter an existing iterator.
 17    * </p>
 18    *
 19    * @author <a href="mailto:james.strachan@metastuff.com">James Strachan </a>
 20    * @version $Revision: 1.10 $
 21    *
 22    * @deprecated THIS CLASS WILL BE REMOVED IN dom4j-1.6 !!
 23    */
 24    public abstract class FilterIterator implements Iterator {
 25    protected Iterator proxy;
 26   
 27    private Object next;
 28   
 29    private boolean first = true;
 30   
 31  0 public FilterIterator(Iterator proxy) {
 32  0 this.proxy = proxy;
 33    }
 34   
 35  0 public boolean hasNext() {
 36  0 if (first) {
 37  0 next = findNext();
 38  0 first = false;
 39    }
 40   
 41  0 return next != null;
 42    }
 43   
 44  0 public Object next() throws NoSuchElementException {
 45  0 if (!hasNext()) {
 46  0 throw new NoSuchElementException();
 47    }
 48   
 49  0 Object answer = this.next;
 50  0 this.next = findNext();
 51   
 52  0 return answer;
 53    }
 54   
 55    /**
 56    * Always throws UnsupportedOperationException as this class does look-ahead
 57    * with its internal iterator.
 58    *
 59    * @throws UnsupportedOperationException
 60    * always
 61    */
 62  0 public void remove() {
 63  0 throw new UnsupportedOperationException();
 64    }
 65   
 66    /**
 67    * Filter method to perform some matching on the given element.
 68    *
 69    * @param element
 70    * DOCUMENT ME!
 71    *
 72    * @return true if the given element matches the filter and should be appear
 73    * in the iteration
 74    */
 75    protected abstract boolean matches(Object element);
 76   
 77  0 protected Object findNext() {
 78  0 if (proxy != null) {
 79  0 while (proxy.hasNext()) {
 80  0 Object nextObject = proxy.next();
 81   
 82  0 if ((nextObject != null) && matches(nextObject)) {
 83  0 return nextObject;
 84    }
 85    }
 86   
 87  0 proxy = null;
 88    }
 89   
 90  0 return null;
 91    }
 92    }
 93   
 94    /*
 95    * Redistribution and use of this software and associated documentation
 96    * ("Software"), with or without modification, are permitted provided that the
 97    * following conditions are met:
 98    *
 99    * 1. Redistributions of source code must retain copyright statements and
 100    * notices. Redistributions must also contain a copy of this document.
 101    *
 102    * 2. Redistributions in binary form must reproduce the above copyright notice,
 103    * this list of conditions and the following disclaimer in the documentation
 104    * and/or other materials provided with the distribution.
 105    *
 106    * 3. The name "DOM4J" must not be used to endorse or promote products derived
 107    * from this Software without prior written permission of MetaStuff, Ltd. For
 108    * written permission, please contact dom4j-info@metastuff.com.
 109    *
 110    * 4. Products derived from this Software may not be called "DOM4J" nor may
 111    * "DOM4J" appear in their names without prior written permission of MetaStuff,
 112    * Ltd. DOM4J is a registered trademark of MetaStuff, Ltd.
 113    *
 114    * 5. Due credit should be given to the DOM4J Project - http://www.dom4j.org
 115    *
 116    * THIS SOFTWARE IS PROVIDED BY METASTUFF, LTD. AND CONTRIBUTORS ``AS IS'' AND
 117    * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 118    * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 119    * ARE DISCLAIMED. IN NO EVENT SHALL METASTUFF, LTD. OR ITS CONTRIBUTORS BE
 120    * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 121    * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 122    * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 123    * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 124    * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 125    * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 126    * POSSIBILITY OF SUCH DAMAGE.
 127    *
 128    * Copyright 2001-2005 (C) MetaStuff, Ltd. All Rights Reserved.
 129    */