[jboss-user] [JBoss Seam] - clickable dataTable: DataModelSelection or method parameter?

[MSchmidke]

Hello all,

as far as I have understood, I have at least two possibilities to make a clickable list with h:dataTable.

The first option is to have the selected row injected per @DataModelSelection.

The second option is to have an action method with parameter, for example:


  | <h:dataTable var="task" value="#{aufgabenFreigeber}">
  |  <h:column>
  |   <s:link action="#{aufgabenliste.onVersionBearbeiten(task)}">
  |      <h:outputText value="#{task.version.versionsnummer}" />
  |   </s:link>
  |  </h:column>
  | </h:dataTable>
  | 

Either seems to work perfect, but are there differences? In my eyes, the method parameter way has several advantages:

- reduces the number of necessary injections (important since every injection must be done on every method call)
- multiple dataTables on one page may use the same action methods, no different DataModelSelection variables to evaluate

Does the DataModelSelection way also have advantages? If not, what is it for?

Marcus.

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