Coverage Report - org.apache.tapestry.annotations.PersistAnnotationWorker
 
Classes in this File Line Coverage Branch Coverage Complexity
PersistAnnotationWorker
0%
0/15
0%
0/4
2
 
 1  
 // Copyright 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  
 
 15  
 package org.apache.tapestry.annotations;
 16  
 
 17  
 import java.lang.reflect.Method;
 18  
 
 19  
 import org.apache.hivemind.Location;
 20  
 import org.apache.tapestry.engine.IPropertySource;
 21  
 import org.apache.tapestry.enhance.EnhancementOperation;
 22  
 import org.apache.tapestry.spec.IComponentSpecification;
 23  
 import org.apache.tapestry.spec.IPropertySpecification;
 24  
 import org.apache.tapestry.spec.PropertySpecification;
 25  
 
 26  
 /**
 27  
  * Allow a property to be marked as persistent, and (optionally) allows a strategy to be set. Works
 28  
  * by adding a new {@link org.apache.tapestry.spec.IPropertySpecification} to the
 29  
  * {@link org.apache.tapestry.spec.IComponentSpecification}.
 30  
  * <p>
 31  
  * The {@link org.apache.tapestry.annotations.Persist} annotation may <em>optionally</em> by
 32  
  * accompanied by a {@link org.apache.tapestry.annotations.InitialValue} annotation; this sets the
 33  
  * initial value, as a binding reference, used to initialize and re-initialize the property.
 34  
  * 
 35  
  * @author Howard M. Lewis Ship
 36  
  * @since 4.0
 37  
  * @see org.apache.tapestry.annotations.Persist
 38  
  */
 39  0
 public class PersistAnnotationWorker implements MethodAnnotationEnhancementWorker
 40  
 {
 41  
         /**
 42  
          * Application property that gives the default property persistence strategy to use for properties annotated by @Persist
 43  
          */
 44  
         public static final String DEFAULT_PROPERTY_PERSISTENCE_STRATEGY = "org.apache.tapestry.default-property-persistence-strategy";
 45  
 
 46  
         private IPropertySource _propertySource;
 47  
 
 48  
     public void performEnhancement(EnhancementOperation op, IComponentSpecification spec,
 49  
             Method method, Location location)
 50  
     {
 51  0
         Persist p = method.getAnnotation(Persist.class);
 52  0
         InitialValue iv = method.getAnnotation(InitialValue.class);
 53  
 
 54  0
         String propertyName = AnnotationUtils.getPropertyName(method);
 55  0
             String defaultStrategy = _propertySource.getPropertyValue(DEFAULT_PROPERTY_PERSISTENCE_STRATEGY);
 56  0
         String stategy = p.value().length() == 0 ? defaultStrategy : p.value();
 57  
 
 58  0
         IPropertySpecification pspec = new PropertySpecification();
 59  
 
 60  0
         pspec.setName(propertyName);
 61  0
         pspec.setPersistence(stategy);
 62  0
         pspec.setLocation(location);
 63  0
         pspec.setInitialValue(iv == null ? null : iv.value());
 64  
 
 65  0
         spec.addPropertySpecification(pspec);
 66  0
     }
 67  
 
 68  
         public void setPropertySource(IPropertySource propertySource)
 69  
         {
 70  0
                 _propertySource = propertySource;
 71  0
         }
 72  
 }