Coverage Report - org.apache.tapestry.binding.MetaBinding
 
Classes in this File Line Coverage Branch Coverage Complexity
MetaBinding
0%
0/19
N/A
1.75
 
 1  
 // Copyright 2004, 2005 The Apache Software Foundation
 2  
 //
 3  
 // Licensed under the Apache License, Version 2.0 (the "License");
 4  
 // 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  
 package org.apache.tapestry.binding;
 15  
 
 16  
 import org.apache.hivemind.ApplicationRuntimeException;
 17  
 import org.apache.hivemind.Location;
 18  
 import org.apache.hivemind.util.Defense;
 19  
 import org.apache.tapestry.IComponent;
 20  
 import org.apache.tapestry.coerce.ValueConverter;
 21  
 import org.apache.tapestry.services.ComponentPropertySource;
 22  
 
 23  
 
 24  
 /**
 25  
  * Simple implementation that allows injection / lookup of meta properties.
 26  
  */
 27  
 public class MetaBinding extends AbstractBinding
 28  
 {
 29  
     private final IComponent _component;
 30  
 
 31  
     private final String _key;
 32  
 
 33  
     private final ComponentPropertySource _propertySource;
 34  
     
 35  
     public MetaBinding(String description, ValueConverter valueConverter, Location location, IComponent component, 
 36  
             ComponentPropertySource propertySource, String key)
 37  
     {
 38  0
         super(description, valueConverter, location);
 39  
 
 40  0
         Defense.notNull(component, "component");
 41  0
         Defense.notNull(propertySource, "propertySource");
 42  0
         Defense.notNull(key, "key");
 43  
         
 44  0
         _component = component;
 45  0
         _key = key;
 46  0
         _propertySource = propertySource;
 47  0
     }
 48  
 
 49  
     public Object getObject()
 50  
     {
 51  
         try
 52  
         {
 53  0
             return _propertySource.getComponentProperty(_component, _key);
 54  
         }
 55  0
         catch (Exception ex)
 56  
         {
 57  0
             throw new ApplicationRuntimeException(ex.getMessage(), getLocation(), ex);
 58  
         }
 59  
     }
 60  
     
 61  
     public Object getComponent()
 62  
     {
 63  0
         return _component;
 64  
     }
 65  
     
 66  
     public String toString()
 67  
     {
 68  0
         StringBuffer buffer = new StringBuffer("MetaBinding");
 69  0
         buffer.append('[');
 70  0
         buffer.append(_component.getExtendedId());
 71  0
         buffer.append(' ');
 72  0
         buffer.append(_key);
 73  0
         buffer.append(']');
 74  
 
 75  0
         return buffer.toString();
 76  
     }
 77  
 }