JSF [Trinidad] treetable, How to define Initially Selected Rows?

[Majid Hussain <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.

Re: JSF [Trinidad] treetable, How to define Initially Selected Rows?

[Blake Sullivan <bl...@oracle.com>]

Majid,

Since you are using a ChildPropertyTreeModel, the keys are collections  
of the Object where the Object is the key at each level.

Note that for performance, you are going to want to cache your  
TreeModel someplace since it is likely that it will be accessed at  
least once per phase and you don't want to recreate it each time.

-- Blake Sullivan

On Dec 18, 2009, at 2:25 AM, Majid Hussain wrote:

> 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.