How to Dynamically Create DirectLink

[Ben Wong]

Hi everyone,

I have a Tapestry page that needs to generate a list of warnings (see
Listing 1 below).  If the warning is of a certain type (e.g. Duplicate),
then I need to dynamically add in one or more DirectLinks to the warning
text.  My question is how do I dynamically generate DirectLink in the
java/class file?  I looked and searched everywhere but only found some code
that call the getLink() method from the DirectService class.  However, I am
not sure how you can set the various parameters for each DirectLink (e.g.
listener, stateful, etc)?

-- PLEASE NOTE THAT I AM USING TAPESTRY 3.0.3. --

Listing 1:
<ul>
   <h1>Warnings</h1>
   <span jwcid="qualityCheckWarningsLoop">
      <li><span jwcid="qualityCheckWarning">Preliminary Scales</span></li>
      <span jwcid="$remove$">
         <li>No Report</li>
         <li>Below Standard</li>
         <li>Invalid ID</li>
         <li>Wrong Type</li>
         <li>Sample</li>
         <li>Duplicate: <a>HDS-2345678</a></li>                   
      </span>
   </span>
</ul>  

Listing 2 - Here is part of the .page file that corresponding the the jwcid
tags above:

<component id="qualityCheckWarningsLoop" type="Foreach">
   <binding name="source"
expression="visit.qualityCheckSession.currentScan.qualityCheckWarnings"/>
   <binding name="value" expression="qualityCheckWarning"/>
</component>
   
<component id="qualityCheckWarning" type="Insert">
   <binding name="value" expression="qualityCheckWarningText"/>
</component>

Listing 3 - Here is the getter that returns the warning text for the
qualityCheckWarning component:

public String getQualityCheckWarningText() {

   Visit visit = (Visit) getVisit();
   Scan currentScan = visit.getQualityCheckSession().getCurrentScan();
      
   StringBuffer qualityCheckWarningText = new
StringBuffer(getQualityCheckWarning());
            
   if
(qualityCheckWarningText.toString().equals(DuplicateScalesScanCheck.DUPLICAT
E_SCALE_WARNING_FLAG)) {
         
      qualityCheckWarningText.append(": ");
      int index = 0;

         
      for (Scan duplicateScan: currentScan.getDuplicateScaleScans()) {
            
         if (index != 0) {
            qualityCheckWarningText.append(", ");
         }

         // ===================================================
         // NEED TO ADD A DIRECT LINK AROUND THE FOLLOWING TEXT   
         // ===================================================     
         qualityCheckWarningText.append(duplicateScan.getStoneId());
         index++;
      }         
   }

   return qualityCheckWarningText.toString();
}

Thanks for any help in advance,
Ben
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 


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