Clover coverage report - Code Coverage for hivemind release 1.0-beta-1
Coverage timestamp: Sat Jul 3 2004 09:41:37 EDT
file stats: LOC: 123   Methods: 6
NCLOC: 71   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
PropertyAdaptor.java 100% 100% 100% 100%
coverage
 1   
 //  Copyright 2004 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   
 
 15   
 package org.apache.hivemind.util;
 16   
 
 17   
 import java.lang.reflect.Method;
 18   
 
 19   
 import org.apache.hivemind.ApplicationRuntimeException;
 20   
 
 21   
 /**
 22   
  * Used to manage dynamic access to a property of a specific class.
 23   
  *
 24   
  * @author Howard Lewis Ship
 25   
  */
 26   
 class PropertyAdaptor
 27   
 {
 28   
     private String _propertyName;
 29   
     private Class _propertyType;
 30   
     private Method _readMethod;
 31   
 
 32   
     private Method _writeMethod;
 33   
 
 34  679
     PropertyAdaptor(String propertyName, Class propertyType, Method readMethod, Method writeMethod)
 35   
     {
 36  679
         _propertyName = propertyName;
 37  679
         _propertyType = propertyType;
 38  679
         _readMethod = readMethod;
 39  679
         _writeMethod = writeMethod;
 40   
     }
 41   
 
 42  3458
     public Class getPropertyType()
 43   
     {
 44  3458
         return _propertyType;
 45   
     }
 46   
 
 47   
     /**
 48   
      * Updates the property of the target object.
 49   
      * 
 50   
      * @param target the object to update
 51   
      * @param value the value to be stored into the target object property
 52   
      */
 53  3509
     public void write(Object target, Object value)
 54   
     {
 55  3509
         if (_writeMethod == null)
 56  1
             throw new ApplicationRuntimeException(
 57   
                 UtilMessages.noPropertyWriter(_propertyName, target),
 58   
                 target,
 59   
                 null,
 60   
                 null);
 61   
 
 62  3508
         try
 63   
         {
 64  3508
             _writeMethod.invoke(target, new Object[] { value });
 65   
 
 66   
         }
 67   
         catch (Exception ex)
 68   
         {
 69  2
             throw new ApplicationRuntimeException(
 70   
                 UtilMessages.writeFailure(_propertyName, target, ex),
 71   
                 target,
 72   
                 null,
 73   
                 ex);
 74   
         }
 75   
     }
 76   
 
 77   
     /**
 78   
      * Returns true if there's a write method for the property.
 79   
      */
 80  23
     public boolean isWritable()
 81   
     {
 82  23
         return _writeMethod != null;
 83   
     }
 84   
 
 85   
     /**
 86   
      * Reads the property of the target object.
 87   
      * 
 88   
      * @param target the object to read a property from
 89   
      */
 90  7
     public Object read(Object target)
 91   
     {
 92  7
         if (_readMethod == null)
 93  1
             throw new ApplicationRuntimeException(
 94   
                 UtilMessages.noReader(_propertyName, target),
 95   
                 target,
 96   
                 null,
 97   
                 null);
 98   
 
 99  6
         try
 100   
         {
 101  6
             return _readMethod.invoke(target, null);
 102   
 
 103   
         }
 104   
         catch (Exception ex)
 105   
         {
 106  1
             throw new ApplicationRuntimeException(
 107   
                 UtilMessages.readFailure(_propertyName, target, ex),
 108   
                 target,
 109   
                 null,
 110   
                 ex);
 111   
         }
 112   
     }
 113   
 
 114   
     /**
 115   
      * Returns true if there's a read method for the property.
 116   
      */
 117   
 
 118  3
     public boolean isReadable()
 119   
     {
 120  3
         return _readMethod != null;
 121   
     }
 122   
 }
 123