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: 145   Methods: 8
NCLOC: 61   Classes: 1
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 Source file Conditionals Statements Methods TOTAL
ComponentAddress.java 37.5% 50% 50% 47.4%
coverage 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.util;
 16   
 
 17   
 import java.io.Serializable;
 18   
 
 19   
 import org.apache.tapestry.IComponent;
 20   
 import org.apache.tapestry.INamespace;
 21   
 import org.apache.tapestry.IPage;
 22   
 import org.apache.tapestry.IRequestCycle;
 23   
 
 24   
 /**
 25   
  * The ComponentAddress class contains the path to a component, allowing it to  
 26   
  * locate an instance of that component in a different 
 27   
  * {@link org.apache.tapestry.IRequestCycle}.
 28   
  * 
 29   
  * <p>This class needs to be used mostly when working with components
 30   
  * accessed via the {@link org.apache.tapestry.IRender} interface. 
 31   
  * It allows those components to serialize and
 32   
  * pass as a service parameter information about what component they have to 
 33   
  * talk to if control returns back to them. 
 34   
  * 
 35   
  * <p>This situation often occurs when the component used via IRender contains
 36   
  * Direct or Action links.
 37   
  * 
 38   
  * @author mindbridge
 39   
  * @since 2.2
 40   
  * 
 41   
  */
 42   
 public class ComponentAddress implements Serializable
 43   
 {
 44   
     private String _pageName;
 45   
     private String _idPath;
 46   
 
 47   
     /**
 48   
      * Creates a new ComponentAddress object that carries the identification 
 49   
      * information of the given component (the page name and the ID path).
 50   
      * @param component the component to get the address of
 51   
      */
 52  0
     public ComponentAddress(IComponent component)
 53   
     {
 54  0
         this(component.getPage().getPageName(), component.getIdPath());
 55   
     }
 56   
 
 57   
     /**
 58   
      * Creates a new ComponentAddress using the given Page Name and ID Path
 59   
      * @param pageName the name of the page that contains the component
 60   
      * @param idPath the ID Path of the component
 61   
      */
 62  4
     public ComponentAddress(String pageName, String idPath)
 63   
     {
 64  4
         _pageName = pageName;
 65  4
         _idPath = idPath;
 66   
     }
 67   
 
 68   
     /**
 69   
      * Creates a new ComponentAddress using the given Page Name and ID Path
 70   
      * relative on the provided Namespace
 71   
      * @param namespace the namespace of the page that contains the component
 72   
      * @param pageName the name of the page that contains the component
 73   
      * @param idPath the ID Path of the component
 74   
      */
 75  0
     public ComponentAddress(
 76   
         INamespace namespace,
 77   
         String pageName,
 78   
         String idPath)
 79   
     {
 80  0
         this(namespace.constructQualifiedName(pageName), idPath);
 81   
     }
 82   
 
 83   
     /**
 84   
      * Finds a component with the current address using the given RequestCycle.
 85   
      * @param cycle the RequestCycle to use to locate the component
 86   
      * @return IComponent a component that has been initialized for the given RequestCycle
 87   
      */
 88  0
     public IComponent findComponent(IRequestCycle cycle)
 89   
     {
 90  0
         IPage objPage = cycle.getPage(_pageName);
 91  0
         return objPage.getNestedComponent(_idPath);
 92   
     }
 93   
 
 94   
     /**
 95   
      * Returns the idPath of the component.
 96   
      * @return String the ID path of the component
 97   
      */
 98  6
     public String getIdPath()
 99   
     {
 100  6
         return _idPath;
 101   
     }
 102   
 
 103   
     /**
 104   
      * Returns the Page Name of the component.
 105   
      * @return String the Page Name of the component
 106   
      */
 107  6
     public String getPageName()
 108   
     {
 109  6
         return _pageName;
 110   
     }
 111   
 
 112   
     /**
 113   
      * @see java.lang.Object#hashCode()
 114   
      */
 115  0
     public int hashCode()
 116   
     {
 117  0
         int hash = _pageName.hashCode() * 31;
 118  0
         if (_idPath != null)
 119  0
             hash += _idPath.hashCode();
 120  0
         return hash;
 121   
     }
 122   
 
 123   
     /**
 124   
      * @see java.lang.Object#equals(Object)
 125   
      */
 126  2
     public boolean equals(Object obj)
 127   
     {
 128  2
         if (!(obj instanceof ComponentAddress))
 129  0
             return false;
 130   
 
 131  2
         if (obj == this)
 132  0
             return true;
 133   
 
 134  2
         ComponentAddress objAddress = (ComponentAddress) obj;
 135  2
         if (!getPageName().equals(objAddress.getPageName()))
 136  0
             return false;
 137   
 
 138  2
         String idPath1 = getIdPath();
 139  2
         String idPath2 = objAddress.getIdPath();
 140  2
         return (idPath1 == idPath2)
 141   
             || (idPath1 != null && idPath1.equals(idPath2));
 142   
     }
 143   
 
 144   
 }
 145