how to generate dynamic tree.properties file from database and pass it to tree structure of richfaces

Question

how to generate dynamic tree.properties file from database and pass it to tree structure of richfaces.

Answer 1

Nice Link 4 implementing Lucene(Hibernate Search) http://www.amin-mc.blogspot.com/

Using Example of przemek TreeManager.java

enter code : public class TreeManager implements Serializable{
@ManagedProperty(value="#{BuyerServiceBean}")
BuyerServiceBean buyerServiceBean;

public BuyerServiceBean getBuyerServiceBean() {
    return buyerServiceBean;
}

public void setBuyerServiceBean(BuyerServiceBean buyerServiceBean) {
    this.buyerServiceBean = buyerServiceBean;
}
private TreeNode<String> root = null;
private String nodeTitle;
private String selectedCategory;

public TreeManager() {}

public TreeNode getRoot() {
    if (root == null) {
        List<DepartmentMasterDataBean> c = new ArrayList<DepartmentMasterDataBean>();
        c = buyerServiceBean.treeList(0);
        TreeModel tm = null;
        tm = new TreeModel(c);
        root = tm.getRoot();
    }
    return root;
}

public void processSelection(NodeSelectedEvent event) {
    HtmlTree tree = (HtmlTree) event.getComponent();
    selectedCategory = (String)tree.getRowData();
    String test = tree.getRowKey().toString();
    Integer id = Integer.parseInt(test.substring(test.lastIndexOf(":")+1, test.length()));
    buyerServiceBean.getDepartmentMasterBindBean().setParentdeptid(id);
    setNodeTitle(selectedCategory);
}

public String getNodeTitle() {
    return nodeTitle;
}

public void setNodeTitle(String nodeTitle) {
    this.nodeTitle = nodeTitle;
}

public void setRoot(TreeNode<String> root) {
    this.root = root;
}

public String getSelectedCategory() {
    return selectedCategory;
}

public void setSelectedCategory(String selectedCategory) {
    this.selectedCategory = selectedCategory;
}

}

TreeModel.java

enter code here : public class TreeModel {


private TreeNode<String> root;

public TreeModel(List<DepartmentMasterDataBean> c) {
    root = new TreeNodeImpl<String>();
    root.setParent(null);
    root.setData("Kategorie");
    createChildren(root, c);
}

private void createChildren(TreeNode<String> r, List<DepartmentMasterDataBean> ch) {
    for (DepartmentMasterDataBean c : ch) {
        TreeNode<String> nodeImpl = new TreeNodeImpl<String>();
        nodeImpl.setData(c.getDeptname());
        r.addChild(c.getDeptid(), nodeImpl);            
        if (c.getChildren() != null) {
            createChildren(nodeImpl, c.getChildren());
        }
    }
}

public TreeNode getRoot() {
    return root;
}

}

Important method for iteration

enter code here : public List<DepartmentMasterDataBean> treeList(Integer deptid) {
    List<DepartmentMasterDataBean> dataBeans = new ArrayList<DepartmentMasterDataBean>();
    List<DepartmentMaster> dms = departmentMasterService.getDepartmentList("parentdeptid", Operation_enum.EQ, deptid);
    for (DepartmentMaster departmentMaster : dms) {
        dataBeans.add(_toDepartmentMasterDataBean(departmentMaster));
    }
    return dataBeans;
}

public DepartmentMasterDataBean _toDepartmentMasterDataBean(DepartmentMaster departmentMaster) {
    DepartmentMasterDataBean dmdb = new DepartmentMasterDataBean();
    List<DepartmentMasterDataBean> list1 = new ArrayList<DepartmentMasterDataBean>();
    dmdb.setDeptid(departmentMaster.getDeptid());
    dmdb.setDeptname(departmentMaster.getDeptname());
    dmdb.setParentdeptid(departmentMaster.getParentdeptid());
    dmdb.setAddress(departmentMaster.getAddress());
    dmdb.setDatentime(departmentMaster.getDatentime());
    dmdb.setPhone(departmentMaster.getPhone());
    List<DepartmentMaster> dms = new ArrayList<DepartmentMaster>();
    dms = departmentMasterService.getDepartmentList("parentdeptid", Operation_enum.EQ, departmentMaster.getDeptid());
    for (DepartmentMaster departmentMaster1 : dms) {
        list1.add(_toDepartmentMasterDataBean(departmentMaster1));
    }
    dmdb.setChildren(list1);
    return dmdb;
}