Coverage Report - org.apache.tapestry.pageload.ComponentTreeWalker
 
Classes in this File Line Coverage Branch Coverage Complexity
ComponentTreeWalker
0%
0/14
0%
0/6
3
 
 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  
 
 15  
 package org.apache.tapestry.pageload;
 16  
 
 17  
 import java.util.Collection;
 18  
 import java.util.Iterator;
 19  
 
 20  
 import org.apache.tapestry.IComponent;
 21  
 import org.apache.tapestry.Tapestry;
 22  
 
 23  
 /**
 24  
  *  Walks through the tree of components and invokes the visitors on each of 
 25  
  *  of the components in the tree.
 26  
  * 
 27  
  *  @author mindbridge
 28  
  *  @since 3.0
 29  
  */
 30  
 public class ComponentTreeWalker
 31  
 {
 32  
     private IComponentVisitor[] _visitors;
 33  
     
 34  
     public ComponentTreeWalker(IComponentVisitor[] visitors)
 35  0
     {
 36  0
         _visitors = visitors;
 37  0
     }
 38  
 
 39  
     public void walkComponentTree(IComponent component)
 40  
     {
 41  
         // Invoke visitors
 42  0
         for (int i = 0; i < _visitors.length; i++)
 43  
         {
 44  0
             IComponentVisitor visitor = _visitors[i];
 45  0
             visitor.visitComponent(component);
 46  
         }
 47  
 
 48  
         // Recurse into the embedded components
 49  0
         Collection components = component.getComponents().values();
 50  
 
 51  0
         if (Tapestry.size(components) == 0)
 52  0
             return;
 53  
 
 54  0
         for (Iterator it = components.iterator(); it.hasNext();)
 55  
         {
 56  0
             IComponent embedded = (IComponent) it.next();
 57  0
             walkComponentTree(embedded);
 58  0
         }
 59  0
     }
 60  
 }