Dynamic node Creation Problem

Hi all,
I am trying to create a node through Java code bellow is the code
IWDNodeInfo graph = wdContext.nodeGraph().getNodeInfo();
for(int i=0;i<10;i++)
     int nodeNumber = i+4;
     IWDNodeInfo seriseNode = graph.addChild("Serise"+nodeNumber,null,true,false,false,false,false,false,null,null,null);
     seriseNode.addAttribute("S"+nodeNumber+"_size","com.sap.dictionary.double");
     seriseNode.addAttribute("S"+nodeNumber+"_xVal","com.sap.dictionary.double");
     seriseNode.addAttribute("S"+nodeNumber+"_yVal","com.sap.dictionary.double");
     //seriseNode.addAttribute("S"+nodeNumber+"_tooltip","com.sap.dictionary.string");
     IWDNode node = wdContext.nodeGraph().getChildNode("Serise"+nodeNumber,IWDNode.NO_SELECTION);
     IWDNodeElement nodeElem = node.createElement();
     nodeElem.setAttributeValue("S"+nodeNumber+"_xVal",new Double(0));
     nodeElem.setAttributeValue("S"+nodeNumber+"_yVal",new Double(0));
     nodeElem.setAttributeValue("S"+nodeNumber+"_size",new Double(0));
     node.addElement(nodeElem);
IWDNode node = wdContext.nodeGraph().getChildNode("Serise4",IWDNode.NO_SELECTION);
node.getCurrentElement().getAttributeAsText("S4_size");
now it is giving me null pointer exception at last line any idea why it coming.
Thanks

Hi,
This problem is solved but now there is another problem,
I am creating a Node and attributes at runtime and want to bind to a business graphics UI element bellow is the code for that
IWDPoint se_point = (IWDPoint) view.createElement(IWDPoint.class,"Series"+seriseNumber+"_Point");
se.setPoint(se_point);
se.getPoint().bindValueSource("Graph.Serise"+seriseNumber);
se.setLabel(supp.getSupplier_Name());
IWDNumericValue numXVal = (IWDNumericValue) view.createElement(IWDNumericValue.class,"S_"+seriseNumber+"numXVal");
numXVal.bindValue("Graph.Series"+seriseNumber+".S"+seriseNumber+"_xVal");
numXVal.setType(WDValueTypeEnumeration.X);
numXVal.setValue(supp.getXcord());
and it gives bellow error for last line in the code
com.sap.tc.webdynpro.progmodel.context.ContextException: Node(GraphView.Graph): no child node 'Series1' at index -1
Can any one help in this
Thanks

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    I am creating Dynamic nodes from Model's Node, each time I execute in the application a function module, the Dynamic nodes must be realeased from session and created again and then the application must also create the user interface elements dynamically as well, from those dynamic nodes. The problem is: When I come back to the initial view and navigates to the report's view, I mean, when there is a new execution of the function's module, The application throws the following error:
    com.sap.tc.webdynpro.progmodel.context.ContextException: DataNodeInfo(EdoCtaDetView): duplicate name for child node Nodo0
    Can I somehow eliminate the instances of the nodes in order to create new dynamic nodes in each execution of the function's module?
    Regards,
    Briger

    Hi Briger,
    Well it's very easy... only you have to put in your source code the following lines, after you invalidate all the elements of your context:
    IWDContext ctx = wdContext.getContext();
    ctx.reset(false);
    There is two kind of reset method. the reset() reset all the metadata and destroy dynamics node. reset(false), reset all metadata destroy dynamics node but keeps the nodes build at design time.
    Regards,
    MC

  • Permissions issue - node creation

    Today our application developed a new bug related to posting messages into a SimpleChatModel node.  It tells us that the user does not have permission to create the node.
    We have approximately 50 rooms and all of them have the nodes we need already in them.  There is no node creation that takes place during normal operation of our application.
    Now, we've been doing this type of posting (successfully posting chat messages into the SimpleChatModel with only Publisher-level permissions) all last week and over the weekend.  It may be that we wrote a bug of course, but I couldn't help noticing that the timing coincided with Nigel's blog post introducing the new SDK.  Is it possible that the volume of new LCCS users, or the use of new server-side permission techniques is related to our issue?
    Thanks,
    -Mike

    Hironmay, I appreciate your input, I know I didn't really provide enough info but I wanted to see if there actually was a problem of which you were aware.
    The behavior was better this morning - but the error has returned (no changes to our code have been made).  So I suspect it is either a timing issue related to how elements of the swf load, or a bug in your service.
    Here is some of the code we use to initialize the chat pod.
    import com.adobe.rtc.sharedModel.descriptors.ChatMessageDescriptor;
    import com.adobe.rtc.events.ChatEvent;
    import com.adobe.rtc.sharedModel.SimpleChatModel;
    [Bindable]
    public var chatModel:SimpleChatModel;
    private function init():void{
    chatModel = new SimpleChatModel();
    chatModel.sharedID = "myChat_SimpleChatModel";
    sync();
    chatModel.addEventListener(ChatEvent.HISTORY_CHANGE, onChatMsg);
    this.addEventListener(KeyboardEvent.KEY_UP, onKeyStroke);
    public function sync():void
    chatModel.subscribe();
    protected function submitChat(str:String):void
    var cmd:ChatMessageDescriptor = new ChatMessageDescriptor();
    cmd.msg =  str;
    chatModel.sendMessage(cmd);
    chat_mesg_input.text = "";
    that code is in an mxml file that defines the chat pod.  the only other place in which we call sync() is reproduced with a small bit of context here:
    if (_usersInRoom == "2" && !_synched) {
    startPublication();
    if (chatPod) {
    chatPod.sync();
    _synched = true;
    this issue does not seem to be confined to any specific room(s) and we are using version 10.
    Error: MessageManager.createNode : insufficient permissions to create node
    at com.adobe.rtc.messaging.manager::MessageManager/http://www.adobe.com/2006/connect/cocomo/messaging/internal::createNode()[C:\work\branches \connect\1004\cocomoPlayer10\src\com\adobe\rtc\messaging\manager\MessageManager.as:253]
    at com.adobe.rtc.sharedModel::CollectionNode/publishItem()[C:\work\branches\connect\1004\coc omoPlayer10\src\com\adobe\rtc\sharedModel\CollectionNode.as:615]
    at com.adobe.rtc.sharedModel::SimpleChatModel/sendMessage()[C:\work\branches\connect\1004\co comoPlayer10\src\com\adobe\rtc\sharedModel\SimpleChatModel.as:377]
    at ChatComponent/submitChat()[/Users/mschwab/work/GoodChat/flex/src/ChatComponent.mxml:31]
    at ChatComponent/onKeyStroke()[/Users/mschwab/work/GoodChat/flex/src/ChatComponent.mxml:55]

  • Tree creation problem

    Hi,
    I wrote the following code to create the tree in hierarchical manner.
    The following code creates three tree nodes, where each node stores
    the information(con, Meas, Child and Next). When i print the nodes using
    print function, it was printed all 4's as contents of 'Meas' array in all nodes.
    Why it was printed only 4's as contents of 'Meas' array in all nodes? I initallized 1's and 2's as contents of 'Meas' array in first two nodes. Can any one help me in fixing the problem?
    Thanks in advance
    by
    sudhakar
    public class Tree {
    private Tnode root;
    class Tnode {
    String Con;
    float [][]Meas;
    Tnode Child;
    Tnode Next;
    Tnode(String cword, float [][]parameters) {
    Meas = new float[6][5];
         Meas = parameters;
         Con = cword;
    Child = null;
    Next = null;
    public void Tree() {
    root = null;
    public void insert(String data, float [][]meas) {
    root = insert(root, data, meas);
    private Tnode insert(Tnode node, String Con, float [][]meas){
    if (node==null) node = new Tnode(Con,meas);
    else if (Con.indexOf(node.Con)==0)
    node.Child = insert(node.Child, Con,meas);
    else node.Next = insert(node.Next, Con,meas);
    return node;
    public void print()
         if(root!=null) print(root);     
    public void print(Tnode node)
    if(node!=null)
         if(node.Con!=null) System.out.println("Con ->" + node.Con);
    show(node.Meas);
    if(node.Next!=null) print(node.Next);
         if(node.Child!=null) print(node.Child);                    
    void show( float [][]Meas)
    for(int i=0;i<6;i++)
    for(int j=0;j<5;j++)
    System.out.println("N.Meas["+i+"]"+"["+j+"]="+ Meas[i][j]);
    public float[][] sum(float[][]s, float [][]N)
    for(int i=0;i<6;i++)
         for(int j=0;j<5;j++)
    s[i][j] = s[i][j] + N[i][j];
    return s;                    
    public static void main(String []v)
    Tree T = new Tree();     
    String str[]={"Comp/Int", "Comp/Int/Inf", "Comp/Int/Inf/Wpaper"};
    float [][]s = new float[6][5];
    for(int i=0;i<6;i++)
    for(int j=0;j<5;j++)
         s[i][j] = (float)1.0;
    T.insert(str[0], s); // s contains all 1's
    s = T.sum(s,s);
    T.insert(str[1], s); // s contains all 2's
    s = T.sum(s,s);
    T.insert(str[2], s); //s contains all 4's
    T.print(); //displays tree
    }

    Thanks for reply. But i was stored the contents of float[][] array (s ,
    which was passed from main method) in three seperate nodes. In
    node creation process, i allocated memory for new float[][] array
    (Meas) in constructor. Why all the float[][] arrays are pointing to s? Yes you did allocate a new float[][] but you don't use it:Tnode(String cword, float [][]parameters) {
    Meas = new float[6][5];
    Meas = parameters;kind regards,
    Jos

  • Reading XML file into Dynamic Node and Display its output as Table.

    Hi All,
    Following is the output of XML file:
       <Company>
         <Employee>
              <Name>John</Name>
              <Age>23</Age>
              <***>Male</***>
              <Location>Frankfurt</Location>
         </Employee>
         <Employee>
              <Name>Tina</Name>
              <Age>21</Age>
              <***>Female</***>
              <Location>Boston</Location>
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         <Department>
              <Name>Sales</Name>
              <HQ>Chicago</HQ>
              <Emplyoees>2300</Employees>
         </Department>     
    I'm able to read the output through DOM parser. But How do I convert this into dynamic node and display this in Web dynpro as Table?
    Any pointers in this regard will be great help?
    Thanks
    Srikant

    Hi Maksim,
    I've used your example and its now helping as there is kind of agreement on that I'll be knowing the structure of Xml and I can fill the nodes.
    But suppose if you have Xml has following structure :
    <?xml version="1.0" encoding="utf-8"?><DATA>
    <item><MAILERID TYPE="C" SIZE="000030">21</MAILERID><ORG_CODE TYPE="C" SIZE="000004">1232</ORG_CODE><EVENTID TYPE="C" SIZE="000015">CONTRACT</EVENTID><SUBSCR_VALUE TYPE="C" SIZE="000001">0</SUBSCR_VALUE></item>
    <item><MAILERID TYPE="C" SIZE="000030">21</MAILERID><ORG_CODE TYPE="C" SIZE="000004">1232</ORG_CODE><EVENTID TYPE="C" SIZE="000015">CREDIT</EVENTID><SUBSCR_VALUE TYPE="C" SIZE="000001">0</SUBSCR_VALUE></item>
    <item><MAILERID TYPE="C" SIZE="000030">21</MAILERID><ORG_CODE TYPE="C" SIZE="000004">1232</ORG_CODE><EVENTID TYPE="C" SIZE="000015">EMPRESS</EVENTID><SUBSCR_VALUE TYPE="C" SIZE="000001">0</SUBSCR_VALUE></item>
    <item><MAILERID TYPE="C" SIZE="000030">21</MAILERID><ORG_CODE TYPE="C" SIZE="000004">1232</ORG_CODE><EVENTID TYPE="C" SIZE="000015">PAYMENT</EVENTID><SUBSCR_VALUE TYPE="C" SIZE="000001">0</SUBSCR_VALUE></item>
    <item><MAILERID TYPE="C" SIZE="000030">21</MAILERID><ORG_CODE TYPE="C" SIZE="000004">1232</ORG_CODE><EVENTID TYPE="C" SIZE="000015">PRICE</EVENTID><SUBSCR_VALUE TYPE="C" SIZE="000001">0</SUBSCR_VALUE></item>
    </DATA>
    How we will do in this case?
    Can we have something similar using DOM? Also what is the best method for displaying data being sent in form of XML. And generalize it for cases like this.
    Thanks
    Srikant

  • How to deal with the dynamic nodes ...in webdynpro abap

    Hi Guys,
    How to insert the dynamic nodes in the context controller...
    Thanks
    Chandra

    You can use node_info to create a dynamic node or use CL_WD_DYNAMIC_TOOL to create dynamic nodes under a node
    For Eg Struc_Node
    fields A type char20,
    fields B type char 20
    For Eg : To Create Node under Context Node( Root Node).
    data lv_node_info type ref to if_wd_context_node_info.
    lv_node_info = wd_context->get_node_info( ).
    CALL METHOD lv_node_info->add_new_child_node
    EXPORTING
    static_element_type = 'Struc_node
    name = lv_node_name
    is_static = abap_false
    is_multiple_selection = abap_true
    RECEIVING
    child_node_info = lv_child_node_info.
    or
    CL_WD_DYNAMIC_TOOL=>CREATE_NODEINFO_FROM_STRUCT

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