Clover coverage report - groovy - 1.0-beta-6
Coverage timestamp: Thu Jul 15 2004 13:18:22 BST
file stats: LOC: 124   Methods: 10
NCLOC: 49   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
ValueHolder.java 0% 0% 0% 0%
coverage
 1   
 /*
 2   
  $Id: ValueHolder.java,v 1.1 2003/10/24 12:47:15 jstrachan Exp $
 3   
 
 4   
  Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
 5   
 
 6   
  Redistribution and use of this software and associated documentation
 7   
  ("Software"), with or without modification, are permitted provided
 8   
  that the following conditions are met:
 9   
 
 10   
  1. Redistributions of source code must retain copyright
 11   
     statements and notices.  Redistributions must also contain a
 12   
     copy of this document.
 13   
 
 14   
  2. Redistributions in binary form must reproduce the
 15   
     above copyright notice, this list of conditions and the
 16   
     following disclaimer in the documentation and/or other
 17   
     materials provided with the distribution.
 18   
 
 19   
  3. The name "groovy" must not be used to endorse or promote
 20   
     products derived from this Software without prior written
 21   
     permission of The Codehaus.  For written permission,
 22   
     please contact info@codehaus.org.
 23   
 
 24   
  4. Products derived from this Software may not be called "groovy"
 25   
     nor may "groovy" appear in their names without prior written
 26   
     permission of The Codehaus. "groovy" is a registered
 27   
     trademark of The Codehaus.
 28   
 
 29   
  5. Due credit should be given to The Codehaus -
 30   
     http://groovy.codehaus.org/
 31   
 
 32   
  THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
 33   
  ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
 34   
  NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 35   
  FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL
 36   
  THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 37   
  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 38   
  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 39   
  SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 40   
  HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 41   
  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 42   
  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 43   
  OF THE POSSIBILITY OF SUCH DAMAGE.
 44   
 
 45   
  */
 46   
 package groovy.model;
 47   
 
 48   
 import java.beans.PropertyChangeListener;
 49   
 import java.beans.PropertyChangeSupport;
 50   
 
 51   
 /**
 52   
  * A simple ValueModle implementation which is a holder of an object value. 
 53   
  * Used to share local variables with closures
 54   
  * 
 55   
  * @author <a href="mailto:james@coredevelopers.net">James Strachan</a>
 56   
  * @version $Revision: 1.1 $
 57   
  */
 58   
 public class ValueHolder implements ValueModel {
 59   
     private Object value;
 60   
     private Class type;
 61   
     private PropertyChangeSupport propertyChangeSupport;
 62   
     private boolean editable = true;
 63   
 
 64  0
     public ValueHolder() {
 65  0
         this(Object.class);
 66   
     }
 67   
     
 68  0
     public ValueHolder(Class type) {
 69  0
         this.type = type;
 70   
     }
 71   
     
 72  0
     public ValueHolder(Object value) {
 73  0
         this.value = value;
 74  0
         this.type = (value != null) ? value.getClass() : Object.class;
 75   
     }
 76   
     
 77   
     /** 
 78   
      * Add a PropertyChangeListener to the listener list.
 79   
      * @param l The listener to add.
 80   
      */
 81  0
     public void addPropertyChangeListener(PropertyChangeListener listener) {
 82  0
         if ( propertyChangeSupport == null ) {
 83  0
             propertyChangeSupport = new PropertyChangeSupport(this);
 84   
         }
 85  0
         propertyChangeSupport.addPropertyChangeListener(listener);
 86   
     }
 87   
     
 88   
     /** 
 89   
      * Removes a PropertyChangeListener from the listener list.
 90   
      * @param l The listener to remove.
 91   
      */
 92  0
     public void removePropertyChangeListener(PropertyChangeListener listener) {
 93  0
         if ( propertyChangeSupport != null ) {
 94  0
             propertyChangeSupport.removePropertyChangeListener(listener);
 95   
         }
 96   
     }
 97   
     
 98   
 
 99  0
     public Object getValue() {
 100  0
         return value;
 101   
     }
 102   
 
 103  0
     public void setValue(Object value) {
 104  0
         Object oldValue = this.value;
 105  0
         this.value = value;
 106  0
         if ( propertyChangeSupport != null ) {
 107  0
             propertyChangeSupport.firePropertyChange("value", oldValue, value);
 108   
         }
 109   
     }
 110   
 
 111  0
     public Class getType() {
 112  0
         return type;
 113   
     }
 114   
 
 115  0
     public boolean isEditable() {
 116  0
         return editable;
 117   
     }
 118   
     
 119  0
     public void setEditable(boolean editable) {
 120  0
         this.editable = editable;
 121   
     }
 122   
 
 123   
 }
 124