Re: [trinidad] how do components work during ppr?

[David Steinkopff]

Hi

Please use the mailinglist of Apache MyFaces
http://myfaces.apache.org/mail-lists.html

regards
David

2007/6/6, Nicolas Kalkhof <[EMAIL PROTECTED]>:

hello,

i have some basic questions about how trinidad/adf components work during
ppr. i wrote a custom outputtext component but didn't get ppr to work at
all. it seems that i miss the basic understanding how for example the
tr:outputtext component obtains the new data from the model during a ppr
request.

my custom tag handler class extends UIXOutputTag and uses setProperties()
to set the values to my component. in my renderer class like this:

public class RichSymbolTextTagHandler extends UIXOutputTag { // JSF 
1.2compliant!

  private ValueExpression valueTextVE = null;
  private ValueExpression partialTriggersVE = null;

  public void release() {
    super.release();
    this.valueTextVE = null;
    this.partialTriggersVE = null;
  }

  final public void setValueText(ValueExpression valueTextVE) {
    this.valueTextVE = valueTextVE;
  }

  final public void setPartialTriggers(ValueExpression partialTriggersVE)
{
    this.partialTriggersVE = partialTriggersVE;
  }


  protected void setProperties(FacesBean bean) {
    super.setProperties(bean);
    if(this.valueTextVE != null) {
      if(!this.valueTextVE.isLiteralText()) { // unified EL
        bean.setProperty(RichSymbolText.VALUE_TEXT_KEY,
        this.valueTextVE.getValue(FacesContext.getCurrentInstance
().getELContext()));
      }
      else { // plain text
        bean.setProperty(RichSymbolText.VALUE_TEXT_KEY,
          this.valueTextVE.getExpressionString());
      }
    }
    .........
    }


since the setProperties method is NOT called during a ppr request, how can
my component access the data?
in my renderer implementation i use decodeInternal() to set the
partialtriggers - without success:


   public void decodeInternal(FacesContext fc, UIComponent uic,
String  clientId) {// JSF 1.2 compliant!
      super.decodeInternal(fc, uic, clientId);
      String[] s = getPartialTriggers();
      RequestContext reqC = RequestContext.getCurrentInstance();
      reqC.addPartialTriggerListeners(uic, s);
   }

is this the right way to go? could anyone give me a hint what to do?

thanks in advance and best regards,
nicolas
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