Several built-in Seam components make it easy to display task lists. The pooledTaskInstanceList is a list of pooled tasks that users may assign to themselves:
<h:dataTable value="#{pooledTaskInstanceList}" var="task">
<h:column>
<f:facet name="header">Description</f:facet>
<h:outputText value="#{task.description}"/>
</h:column>
<h:column>
<s:link action="#{pooledTask.assignToCurrentActor}" value="Assign" taskInstance="#{task}"/>
</h:column>
</h:dataTable>
Note that instead of <s:link> we could have used a plain JSF <h:commandLink>:
<h:commandLink action="#{pooledTask.assignToCurrentActor}">
<f:param name="taskId" value="#{task.id}"/>
</h:commandLink>
The pooledTask component is a built-in component that simply assigns the task to the current user.
The taskInstanceListForType component includes tasks of a particular type that are assigned to the current user:
<h:dataTable value="#{taskInstanceListForType['todo']}" var="task">
<h:column>
<f:facet name="header">Description</f:facet>
<h:outputText value="#{task.description}"/>
</h:column>
<h:column>
<s:link action="#{todoList.start}" value="Start Work" taskInstance="#{task}"/>
</h:column>
</h:dataTable>
