public ClientBehaviorSupportImpl(RenderSupport renderSupport) 
{
        this.renderSupport = renderSupport;
}

 public  void addFormFragment(String clientId,
    String showFunctionName,
    String hideFunctionName) 
{
        JSONObject spec = new JSONObject();
        addFunction(spec, "show", showFunctionName);
        addFunction(spec, "hide", hideFunctionName);
        addElementInit("formFragment", clientId, spec);
}

 public  void addFormInjector(String clientId,
    Link link,
    InsertPosition insertPosition,
    String showFunctionName) 
{
        JSONObject spec = new JSONObject();
        spec.put("element", clientId);
        spec.put("url", link.toAbsoluteURI());
        if (insertPosition == InsertPosition.BELOW)
            spec.put("below", true);
        addFunction(spec, "show", showFunctionName);
        // Always has at least two properties.
        renderSupport.addInit("formInjector", spec);
}

 public  void addValidation(Field field,
    String validationName,
    String message,
    Object constraint) 
{
        String fieldId = field.getClientId();
        JSONArray specs;
        if (validations.has(fieldId)) specs = validations.getJSONArray(fieldId);
        else
        {
            specs = new JSONArray();
            validations.put(fieldId, specs);
        }
        JSONArray thisSpec = new JSONArray();
        thisSpec.put(validationName);
        thisSpec.put(message);
        if (constraint != null) thisSpec.put(constraint);
        specs.put(thisSpec);
}

 public  void addZone(String clientId,
    String showFunctionName,
    String updateFunctionName) 
{
        JSONObject spec = new JSONObject();
        addFunction(spec, "show", showFunctionName);
        addFunction(spec, "update", updateFunctionName);
        addElementInit("zone", clientId, spec);
}

 public  void commit() 
{
        for (String field : validations.keys())
        {
            JSONArray specs = validations.getJSONArray(field);
            JSONArray parameters = new JSONArray();
            parameters.put(field);
            parameters.put(specs);
            renderSupport.addInit("validate", parameters);
        }
}

Invoked at the end of rendering to commit (to the org.apache.tapestry5.RenderSupport ) any accumulated validations.

 public  void linkZone(String linkId,
    String elementId,
    Link eventLink) 
{
        JSONArray spec = new JSONArray();
        spec.put(linkId);
        spec.put(elementId);
        spec.put(eventLink.toAbsoluteURI());
        renderSupport.addInit("linkZone", spec);
}