It`s not really related to seam, but you have discussed other components, so
I`ll give it a try. I got tree2 working niceley, but now I wan`t to add feature
'expand/collapse All'. Tomahawk has it allready abled, through HtmlTree
component. But I do not seem to get tree2 binding to it. It throws
nullpointerexception when hitting expandAll action.
Have tried everything, hope that you can help me.
| package ee.digizone.ejb;
|
| import java.io.Serializable;
|
| import java.util.Collections;
| import java.util.Comparator;
|
| import java.util.List;
|
| import javax.ejb.Remove;
| import javax.ejb.Stateful;
| import javax.faces.application.FacesMessage;
| import javax.faces.component.UIComponent;
| import javax.faces.context.FacesContext;
| import javax.faces.event.ActionEvent;
| import javax.faces.validator.ValidatorException;
| import javax.persistence.EntityManager;
| import org.jboss.logging.Logger;
|
| import org.apache.myfaces.custom.tree2.HtmlTree;
| import org.apache.myfaces.custom.tree2.TreeModel;
| import org.apache.myfaces.custom.tree2.TreeModelBase;
| import org.apache.myfaces.custom.tree2.TreeNode;
| import org.apache.myfaces.custom.tree2.TreeNodeBase;
|
| import org.jboss.seam.annotations.*;
| import org.jboss.seam.ScopeType;
|
| import ee.digizone.entity.Category;
| import ee.digizone.entity.Product;
|
|
| @Stateful
| @Name("productList")
| @Scope(ScopeType.EVENT)
| public class ProductListBean implements ProductList, Serializable
| {
|
| private static final long serialVersionUID = 1L;
| Logger logger = Logger.getLogger(ProductListBean.class);
| private HtmlTree _tree = new HtmlTree();
| private TreeNode treeData;
|
| @In(create=true,value="digizoneDatabase")
| private EntityManager em;
|
| @Create
| public void loadData() {
| TreeNodeBase tempData = new TreeNodeBase("group", "Root","0",
false);
| List<Category> categories = em.createQuery("from Category c
where c.head != c.id and c.head = 1 order by c.name").getResultList();
| recursive(categories,tempData);
| treeData = tempData;
|
| }
| private void recursive(List<Category> categories, TreeNode node) {
| sort(categories);
| for (Category c: categories) {
| TreeNodeBase newNode = new
TreeNodeBase("group",c.getName(),String.valueOf(c.getId()),
c.getGroups().isEmpty() && c.getProducts().isEmpty());
| node.getChildren().add( newNode );
| List<Product> products = c.getProducts();
| sortp(products);
| for (Product p: products)
| newNode.getChildren().add(new
TreeNodeBase("product",p.getName(),String.valueOf(p.getId()), true));
| if (!c.getGroups().isEmpty())
| recursive(c.getGroups(),newNode);
| }
| }
| public void sort(List data)
| {
| Collections.sort(data, new Comparator<Category>() {
| public int compare(Category x, Category y)
| {
| return
x.getName().toLowerCase().compareTo(y.getName().toLowerCase());
| }
| });
| }
| public void sortp(List data)
| {
| Collections.sort(data, new Comparator<Product>() {
| public int compare(Product x, Product y)
| {
| return
x.getName().toLowerCase().compareTo(y.getName().toLowerCase());
| }
| });
| }
|
| public TreeNode getTreeData()
| {
| return treeData;
| }
|
| public TreeModel getExpandedTreeData()
| {
| return new TreeModelBase(getTreeData());
| }
|
| public void setTree(HtmlTree tree)
| {
| _tree = tree;
| }
|
| public HtmlTree getTree()
| {
| return _tree;
| }
|
| public String expandAll()
| {/*
| if (_tree != null)
| _tree.expandAll();
| else
| logger.info("NULL RAIBE");
| */
| return null;
|
| }
|
| private String _nodePath;
|
| public void setNodePath(String nodePath)
| {
| _nodePath = nodePath;
| }
|
| public String getNodePath()
| {
| return _nodePath;
| }
|
| public void checkPath(FacesContext context, UIComponent component,
java.lang.Object value)
| {
| FacesMessage message = null;
|
| String[] path = _tree.getPathInformation(value.toString());
|
| for (int i = 0; i < path.length; i++)
| {
| String nodeId = path;
| try
| {
| _tree.setNodeId(nodeId);
| }
| catch (Exception e)
| {
| throw new ValidatorException(message, e);
| }
|
| if (_tree.getNode().isLeaf())
| {
| message = new FacesMessage(FacesMessage.SEVERITY_ERROR,
"Invalid node path (cannot expand a leaf): "
| + nodeId, "Invalid node path (cannot expand a
leaf): " + nodeId);
| throw new ValidatorException(message);
| }
| }
| }
|
| public void expandPath(ActionEvent event)
| {
| _tree.expandPath(_tree.getPathInformation(_nodePath));
| }
|
| @Destroy @Remove
| public void destroy()
| {
| }
| }
|
| <div class="form2">
| <h:form id="foo">
|
| <h:commandLink action="#{productList.expandAll}"><h:outputText
value="Tootepuu"/></h:commandLink>
| <div class="separator"></div>
| <t:tree2 id="categoryTree" binding="#{productList.tree}"
value="#{productList.treeData}" var="node" varNodeToggler="t"
clientSideToggle="false" showRootNode="false" showNav="false" showLines="false">
| <f:facet name="group">
| <h:panelGroup>
| <span class="tree_bg">
| <h:commandLink immediate="true"
action="#{t.toggleExpanded}" rendered="#{!empty node.children}">
| <t:graphicImage value="images/arrow_r.gif"
rendered="#{!t.nodeExpanded}" />
| <t:graphicImage value="images/arrow_d.gif"
rendered="#{t.nodeExpanded}" />
| </h:commandLink>
| <h:outputText value="#{node.description}"
rendered="#{!empty node.children}"/>
| <h:outputText
value="      "/>
| <h:outputText value="#{node.description}"
rendered="#{empty node.children}"/>
| </span>
| <span class="tree_btn">
| <s:link view="/haldus/cproduct.xhtml"
action="#{productEditor.selectCreate}">
| <f:param name="catid" value="#{node.identifier}"/>
| <t:graphicImage value="images/tree_add.gif"/>
| </s:link>
| </span>
| </h:panelGroup>
| </f:facet>
| <f:facet name="product">
| <h:panelGroup>
| <span class="tree_bg">
| <h:outputText
value="      "/>
| <s:link view="/haldus/mproduct.xhtml"
action="#{productEditor.selectModify}">
| <h:outputText value="#{node.description}"/>
| <f:param name="productid" value="#{node.identifier}"/>
| </s:link>
| </span>
| <span class="tree_btn">
| <s:link propagation="begin"
action="#{productEditor.delete}">
| <f:param name="productid" value="#{node.identifier}"/>
| <t:graphicImage value="images/tree_del.gif"/>
| </s:link>
| </span>
| </h:panelGroup>
| </f:facet>
| </t:tree2>
| </h:form>
| </div>
View the original post :
http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3948137#3948137
Reply to the post :
http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=3948137
-------------------------------------------------------
All the advantages of Linux Managed Hosting--Without the Cost and Risk!
Fully trained technicians. The highest number of Red Hat certifications in
the hosting industry. Fanatical Support. Click to learn more
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=107521&bid=248729&dat=121642
_______________________________________________
JBoss-user mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/jboss-user
