ASF_20_SRC_AUTO/src/blocks/woody/samples/forms/binding/01value-bind.xml

<?xml version="1.0"?>
<wb:context 
  xmlns:wb="http://apache.org/cocoon/woody/binding/1.0" 
  xmlns:wd="http://apache.org/cocoon/woody/definition/1.0" 
	path="/" >

<!-- 
   | This file shows the different possibilities for (single) Value Binding 
   | of the Binding Framework in Cocoon Forms (aka Woody).
   -->


  <!-- 
     | SECTION 1. Default simple value-binding 
     -->
  <wb:value id="simple"   
            path="simple" />
            

  <!-- 
     | SECTION 2. Playing around with @direction
     -->

  <!-- Binding only during load() -->
  <wb:value id="readonly"   
            path="readOnly" direction="load"/>
            
  <!-- Binding only during save() -->          
  <wb:value id="writeonly"   
            path="writeOnly" direction="save"/>
            
  <!-- Binding working to different targets for 
       load() and save() -->
  <wb:value id="diff"   
            path="diffIn" direction="load"/>            
  <wb:value id="diff"   
            path="diffOut" direction="save"/>
            
            
  <!-- 
     | SECTION 3. Using the 'on-update'
     -->
               
  <!-- Binding executing additional action on save()
       if the value changed -->          
  <wb:value id="onupdate"   
            path="onUpdate" >
    <wb:on-update>
      <wb:javascript id="onupdate" path="..">
        <wb:load-form />
        <wb:save-form>
          var countPointer = jxpathContext.getPointer('updateCount');
          var count = parseInt(countPointer.getValue()) + 1;
          countPointer.setValue(count);
        </wb:save-form>
      </wb:javascript>
    </wb:on-update>          
  </wb:value>
            
            
  <!-- 
     | SECTION 4. Matching value types and data-conversion
     -->
            
  <!-- Boolean Binding just works -->          
  <wb:value id="bool"   
            path="bool">
    <wd:convertor datatype="boolean" />
  </wb:value>
                        
  <!-- Converting data-types to/from String values -->
  <wb:value id="date"   
            path="date" >
    <wd:convertor datatype="date" >
      <wd:patterns>
        <wd:pattern>yyyyMMdd</wd:pattern>
      </wd:patterns>
    </wd:convertor>
  </wb:value>
  
</wb:context>