Re: [Trinidad] treeTable and disclosedRowKeys

[omaji7 <om...@gmail.com>]

Hi,

My project is build in JSF, Hibernate and Faclets. i m using trinidad
treetable tag to build a tree with multiselection nodes. Now i m facing a
problem to initially selection of the nodes when page is loaded at the first
time. i have tried alot to accomplish this task, but still unable to retain
it. There is an attribute of "selectedRowKeys" in TreeTable which takes the
object of "RowKeySet", but when i am building the tree in my bean, i don't
know the RowKeys generated, so how do i get my desired RowKeys to be
selected in the tree?

i am trying to provide the code below

myTree.xhtml

<tr:treeTable id="testTreeTable"
                                  value="#{RoleManageBean.tree}"
                                  var="node"
                                  rowSelection="multiple"
                                  initiallyExpanded="true"
                                  rowBandingInterval="1"
                                  horizontalGridVisible="true"
                                  verticalGridVisible="true"
                                 
selectedRowKeys="#{RoleManageBean.selectedRowKeys}">
                        <f:facet name="actions">
                            <tr:commandButton id="treeTableSelectButton"
text="Submit Sel." action="#{RoleManageBean.treeTableSelect}" />
                        </f:facet>
                        <f:facet name="nodeStamp">
                            <tr:column headerText="Name">
                                <tr:outputText value="#{node.name}"/>
                            </tr:column>
                        </f:facet>
                        <f:facet name="pathStamp">
                            <tr:outputText value="#{node.name}"/>
                        </f:facet>
                    </tr:treeTable>


MyBean.java

public class RoleManageBean implements Serializable {

    private TreeModel tree;
    private RowKeySet selectedRowKeys = null;

public TreeModel getTree() throws Exception {
        Application[] applications = dbops.getAllApplications();
        List<Node1> empty1 = Collections.emptyList();
        List<Node1> root1 = new ArrayList<Node1>();
        List<Node1> apps = new ArrayList<Node1>();
        for (Application application : applications) {
            Set<ApplicationPage> appPages =
application.getApplicationPage();
            List<Node1> pages = new ArrayList<Node1>();
            for (ApplicationPage applicationPage : appPages) {
                pages.add(new Node1(applicationPage.getPageName(),
String.valueOf(applicationPage.getPageID()), empty1));
            }
            apps.add(new Node1(application.getApplicationName(),
String.valueOf(application.getHomePage().getPageID()), pages));

        }
        root1.add(new Node1("Applications", "0", apps));
        tree = new ChildPropertyTreeModel(root1, "children");
       
        return tree;
    }

public RowKeySet getSelectedRowKeys() {
        selectedRowKeys = new RowKeySetImpl();
        selectedRowKeys.add(String.valueOf("1,0"));
        System.out.println("called");
        return selectedRowKeys;
    }

    public void setSelectedRowKeys(RowKeySet selectedRowKeys) {
        this.selectedRowKeys = selectedRowKeys;
    }


Any guideline will be appriciated. Thanks in Advance

Majid. 

Rottstock, Sven wrote:
> 
> Hi,
> 
> i have a strange behaviour with the treeTable and the disclosedRowKeys.
> In detail i want to expand specific nodes programaticaly and this should
> be the initial state of the treeTable. This works fine for the first
> render time. Now the trouble: In the action facet i have a commandLink
> that should reset the nodes to the initial state. All that i can see is
> that the treeTable is completely collapsed after you have clicked the
> commandLink. If you force a refresh in the browser the initial state is
> displayed again. In the other hand if you expand the nodes manually and
> force a refresh in the browser the same state of the nodes are
> displayed. In other words it is no request scope problem. For better
> understanding i will provide some code snippets:
> 
> <!-- faces-config -->
>     <managed-bean>
>         <managed-bean-name>activityInstanceDetails</managed-bean-name>
>         <managed-bean-class>
>             local.jsf.beans.ActivityInstanceDetailsBean
>         </managed-bean-class>
>         <managed-bean-scope>request</managed-bean-scope>
>     </managed-bean>
> <!-- end faces-config -->
> 
> <!-- treeTable page -->
> <tr:treeTable
> disclosedRowKeys="#{activityInstanceDetails.disclosedRowKeys}"
>   value="#{activityInstanceDetails.dataModel}" var="row"
> id="activityTree"
>  
> rowDisclosureListener="#{activityInstanceDetails.rowDisclosureListener}"
>   partialTriggers=":activityTree:collapseUninterested">
>   <f:facet name="actions">
>     <tr:commandLink text="Expand only current activity path"
> id="collapseUninterested"
>        action="#{activityInstanceDetails.resetDisclosedRowKeys}"
>        partialSubmit="true" immediate="true"/>
>     </f:facet>
>     <f:facet name="nodeStamp">
>       <tr:column noWrap="true">
>         <f:facet name="header">
>           <tr:outputText value="#{bundle.name}"/>
>         </f:facet>
>         <tr:outputText value="#{row.runtimeObject.activity.name}"
>           inlineStyle="font-weight:bold" />
>       </tr:column>
>     </f:facet>
> <!-- end treeTable page -->
> 
> <!-- activityInstanceDetails -->
> public class ActivityInstanceDetailsBean {
>   private RowKeySet disclosedEntries;
>   private TreeModel dataModel;
> 
>   public ActivityInstanceDetailsBean()
>   {
>     SessionContext ctx = SessionContext.findSessionContext();
>     disclosedEntries = (RowKeySet)ctx.lookup(DISCLOSED_ENTRIES);
>     dataModel = (TreeModel)ctx.lookup(DATA_MODEL);
>   }
> 
>   public TreeModel getDataModel()
>   {
>     return dataModel;
>   }
> 
>   private RowKeySet getInitialDisclosedRowKeys()
>   {
>     RowKeySet disclosedEntries = new RowKeySetTreeImpl();
>     TreeModel treeModel = getDataModel();
>     disclosedEntries.setCollectionModel(treeModel);
>     if (treeModel != null && treeModel.getRowCount() > 0) {
>        setActivityInstancePath(disclosedEntries, treeModel,
> getActivityInstance());
>     }
>     return disclosedEntries;
>   }
>     
>   public RowKeySet getDisclosedRowKeys() 
>   {
>     if (disclosedEntries == null) {
>       disclosedEntries = getInitialDisclosedRowKeys();
>       SessionContext.findSessionContext().bind(
>         DISCLOSED_ENTRIES, disclosedEntries);
>     }
>     return disclosedEntries;
>   }
> 
>   public void setDisclosedRowKeys(RowKeySet disclosedEntries) {
>     this.disclosedEntries = disclosedEntries;
>     SessionContext.findSessionContext().bind(DISCLOSED_ENTRIES,
> disclosedEntries);
>   }
>     
>   public void resetDisclosedRowKeys() {
>     setDisclosedRowKeys(getInitialDisclosedRowKeys());
>   }
>     
>   public void rowDisclosureListener(RowDisclosureEvent event)
>   {
>     RowKeySet added = event.getAddedSet();
>     RowKeySet removed = event.getRemovedSet();
>     if(disclosedEntries == null)
>     {
>       disclosedEntries = added;
>     }
>     else
>     {
>       if(!added.isEmpty())
>       {
>         disclosedEntries.addAll(added);
>       }
>       if(!removed.isEmpty())
>       {
>         disclosedEntries.removeAll(removed);
>       }
>     }
>   }
> }
> <!-- end activityInstanceDetails -->
> 
> Hope that anybody can help me to solve this problem.
> 
> Regars,
> 
> Sven
> 
> 

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