Clover coverage report - Code Coverage for tapestry release 3.1-alpha-1
Coverage timestamp: Mon Feb 21 2005 09:16:14 EST
file stats: LOC: 126   Methods: 8
NCLOC: 57   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
AbstractBinding.java - 100% 100% 100%
coverage
 1   
 // Copyright 2004, 2005 The Apache Software Foundation
 2   
 //
 3   
 // Licensed under the Apache License, Version 2.0 (the "License");
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 // you may not use this file except in compliance with the License.
 5   
 // You may obtain a copy of the License at
 6   
 //
 7   
 //     http://www.apache.org/licenses/LICENSE-2.0
 8   
 //
 9   
 // Unless required by applicable law or agreed to in writing, software
 10   
 // distributed under the License is distributed on an "AS IS" BASIS,
 11   
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12   
 // See the License for the specific language governing permissions and
 13   
 // limitations under the License.
 14   
 
 15   
 package org.apache.tapestry.binding;
 16   
 
 17   
 import org.apache.hivemind.Location;
 18   
 import org.apache.hivemind.util.Defense;
 19   
 import org.apache.tapestry.BindingException;
 20   
 import org.apache.tapestry.IBinding;
 21   
 import org.apache.tapestry.coerce.ValueConverter;
 22   
 
 23   
 /**
 24   
  * Base class for {@link IBinding}implementations.
 25   
  * 
 26   
  * @author Howard Lewis Ship
 27   
  */
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 29   
 public abstract class AbstractBinding implements IBinding
 30   
 {
 31   
     /** @since 3.1 */
 32   
 
 33   
     private final String _description;
 34   
 
 35   
     /** @since 3.1 */
 36   
 
 37   
     private final ValueConverter _valueConverter;
 38   
 
 39   
     /** @since 3.0 */
 40   
 
 41   
     private final Location _location;
 42   
 
 43   
     /** @since 3.0 */
 44   
 
 45  1939
     protected AbstractBinding(String description, ValueConverter valueConverter, Location location)
 46   
     {
 47  1939
         Defense.notNull(description, "description");
 48  1939
         Defense.notNull(valueConverter, "valueConverter");
 49   
 
 50  1939
         _description = description;
 51  1939
         _valueConverter = valueConverter;
 52  1939
         _location = location;
 53   
     }
 54   
 
 55  23
     public Location getLocation()
 56   
     {
 57  23
         return _location;
 58   
     }
 59   
 
 60   
     /**
 61   
      * Overridden in subclasses that are not invariant.
 62   
      * 
 63   
      * @throws ReadOnlyBindingException
 64   
      *             always.
 65   
      */
 66   
 
 67  1
     public void setObject(Object value)
 68   
     {
 69  1
         throw createReadOnlyBindingException(this);
 70   
     }
 71   
 
 72   
     /**
 73   
      * Default implementation: returns true.
 74   
      * 
 75   
      * @since 2.0.3
 76   
      */
 77   
 
 78  1101
     public boolean isInvariant()
 79   
     {
 80  1101
         return true;
 81   
     }
 82   
 
 83  3325
     public Object getObject(Class type)
 84   
     {
 85  3325
         Defense.notNull(type, "type");
 86   
 
 87  3325
         Object raw = getObject();
 88   
 
 89  3324
         try
 90   
         {
 91  3324
             return _valueConverter.coerceValue(raw, type);
 92   
         }
 93   
         catch (Exception ex)
 94   
         {
 95  1
             String message = BindingMessages.convertObjectError(this, ex);
 96   
 
 97  1
             throw new BindingException(message, getComponent(), _location, this, ex);
 98   
         }
 99   
     }
 100   
 
 101   
     /**
 102   
      * Returns the component to which this binding is connected; this is currently only used when
 103   
      * building certain exceptions. This implementation returns null.
 104   
      * 
 105   
      * @since 3.1
 106   
      */
 107   
 
 108  2
     public Object getComponent()
 109   
     {
 110  2
         return null;
 111   
     }
 112   
 
 113   
     /** @since 3.0 */
 114   
 
 115  2
     protected BindingException createReadOnlyBindingException(IBinding binding)
 116   
     {
 117  2
         return new BindingException(BindingMessages.readOnlyBinding(binding), binding);
 118   
     }
 119   
 
 120   
     /** @since 3.1 */
 121   
 
 122  6
     public String getDescription()
 123   
     {
 124  6
         return _description;
 125   
     }
 126   
 }