How to write lead selection method for a tree by nesting table column

Hi,
I have implemented a table with TreeByNestingTableColumn(To show the tree structure in the table).I am not able to get the selected row element in lead selection method.(I am able to get parent element.) .
could anyone please tell me about this code?
BR,
Ashish

Hi,
Follow the below steps to the solution for your problem
1. Create Action "LeadSelection" in View with parameter (name : 'seletedItem'
and type : I<your node>Element
2. Bind this action to Table property "onLeadSelec"
3. In wdModify()
 IWDTable table = (IWDTable) view.getElement("Your table id");
 table.mappingOfOnLeadSelect().addSourceMapping("nodeElement", "selectedEle");
4. In onActionLeadSelection()
 wdComponentAPI.getMessageManager().reportSuccess("Selected Item : "+selectedEle.get<Your Node Attribute>());
Let me know if you need more clarification
Thanks

Similar Messages

How to block lead selection change in a tree ?

Hi Guys,
Scenario
I have MasterTree - DetailEditor pair. MasterTree is used to visit some tree-structured data and DetailEditor is used to edit currently selected tree node.
Requirement
If currently selected node data is updated through DetailEditor and needs to be saved, than on a subsequent tree selection change the user should be warned about unsaved data.
Implementation
In onAction event handler of MasterTree I check whether last selected node data is updated and needs to be saved and if this is the case rollback treeSelection to that node. On the time onAction event handler is called the tree selection is changed from the node that needs save to the newly selected node. In order to rollback treeSelection I need to introduce variable referencing last selected tree node.
Question
Is there any other technique to implement above scenario without using additional variable and manually rollback treeSelection ? For example, to plug in WDP framework on validation step just before lead selection is changed.
Thanks in advance

Alex,
Here is a link to the phase model of WD:
http://help.sap.com/saphelp_nw04/helpdata/en/b8/cd96edb9c8794aa362e6e8b4236a1f/frameset.htm
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-Cindy

How to write a create method for a table Not null fields

Hi all,
I have a table with four columns,
process
prs_seqid NUMBER(4) NOT NULL,
prs_sbs VARCHAR2(2) NOT NULL,
prs_name VARCHAR2(64) NOT NULL,
description VARCHAR2(128)
Where prs_seqid is primary key and prs_sbs is foreign key.
I tried to create a CMP bean for this table. I am unable to write a record in table while I can read
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public Long ejbCreate() throws CreateException {
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prs_seqid = newPrs_seqid;
newPrs_sbs = prs_sbs;
prs_name = newPrs_name;
return null;
public void ejbPostCreate() {
public void ejbPostCreate(Long newPrs_seqid, String newPrs_sbs, String newPrs_name) {
When I run the client code �home.create(pk, "AB", "ABC");�
It throws
java.rmi.ServerException: RemoteException occurred in server thread; nested exce
ption is:
java.rmi.RemoteException: Transaction aborted (possibly due to transacti
on time out).; nested exception is: javax.transaction.RollbackException; nested
exception is:
javax.transaction.RollbackException
java.rmi.RemoteException: Transaction aborted (possibly due to transaction time
out).; nested exception is: javax.transaction.RollbackException; nested exceptio
n is:
javax.transaction.RollbackException
javax.transaction.RollbackException
<<no stack trace available>>
In log file I got
java.sql.SQLException: ORA-01400: cannot insert NULL into ("SCOTT"."PROCESSES"."PRS_SBS")
 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
 at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
 at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543)
 at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1405)
 at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:822)
 at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:1446)
 at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1371)
 at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1900)
 at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:363)
 at com.sun.ejb.persistence.PersistenceManagerImpl.createRow(PersistenceManagerImpl.java:630)
 at com.sun.ejb.persistence.PersistenceManagerImpl.storeRow(PersistenceManagerImpl.java:412)
 at com.sun.ejb.persistence.PartitionImpl.ejbStore(PartitionImpl.java:555)
 at com.telesenskscl.processes.ProcessesBean_PM.ejbStore(ProcessesBean_PM.java:103)
 at com.sun.ejb.containers.EntityContainer.callEJBStore(EntityContainer.java:1581)
 at com.sun.ejb.containers.EntityContainer.enlistResourcesAndStore(EntityContainer.java:868)
 at com.sun.ejb.containers.EntityContainer.beforeCompletion(EntityContainer.java:853)
 at com.sun.ejb.containers.ContainerSynchronization.beforeCompletion(ContainerSynchronization.java:65)
 at com.sun.jts.jta.SynchronizationImpl.before_completion(SynchronizationImpl.java:48)
 at com.sun.jts.CosTransactions.RegisteredSyncs.distributeBefore(RegisteredSyncs.java:108)
 at com.sun.jts.CosTransactions.TopCoordinator.beforeCompletion(TopCoordinator.java:2289)
 at com.sun.jts.CosTransactions.CoordinatorTerm.commit(CoordinatorTerm.java:233)
 at com.sun.jts.CosTransactions.TerminatorImpl.commit(TerminatorImpl.java:208)
 at com.sun.jts.CosTransactions.CurrentImpl.commit(CurrentImpl.java:386)
 at com.sun.jts.jta.TransactionManagerImpl.commit(TransactionManagerImpl.java:208)
 at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.commit(J2EETransactionManagerImpl.java:434)
 at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:1460)
 at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:1278)
 at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:397)
 at com.telesenskscl.processes.ProcessesBean_PM_RemoteHomeImpl.create(ProcessesBean_PM_RemoteHomeImpl.java:41)
 at com.telesenskscl.processes._ProcessesBean_PM_RemoteHomeImpl_Tie._invoke(Unknown Source)
 at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatchToServant(GenericPOAServerSC.java:519)
 at com.sun.corba.ee.internal.POA.GenericPOAServerSC.internalDispatch(GenericPOAServerSC.java:204)
 at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatch(GenericPOAServerSC.java:112)
 at com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:273)
 at com.sun.corba.ee.internal.iiop.RequestProcessor.process(RequestProcessor.java:84)
 at com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:99)
javax.ejb.EJBException: nested exception is: javax.ejb.EJBException: nested exception is: java.sql.SQLException: ORA-01400: cannot insert NULL into ("SCOTT"."PROCESSES"."PRS_SBS")
javax.ejb.EJBException: nested exception is: java.sql.SQLException: ORA-01400: cannot insert NULL into ("SCOTT"."PROCESSES"."PRS_SBS")
java.sql.SQLException: ORA-01400: cannot insert NULL into ("SCOTT"."PROCESSES"."PRS_SBS")
 at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:168)
 at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:208)
 at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:543)
 at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1405)
 at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:822)
 at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:1446)
 at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:1371)
 at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:1900)
 at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:363)
 at com.sun.ejb.persistence.PersistenceManagerImpl.createRow(PersistenceManagerImpl.java:630)
 at com.sun.ejb.persistence.PersistenceManagerImpl.storeRow(PersistenceManagerImpl.java:412)
 at com.sun.ejb.persistence.PartitionImpl.ejbStore(PartitionImpl.java:555)
 at com.telesenskscl.processes.ProcessesBean_PM.ejbStore(ProcessesBean_PM.java:103)
 at com.sun.ejb.containers.EntityContainer.callEJBStore(EntityContainer.java:1581)
 at com.sun.ejb.containers.EntityContainer.enlistResourcesAndStore(EntityContainer.java:868)
 at com.sun.ejb.containers.EntityContainer.beforeCompletion(EntityContainer.java:853)
 at com.sun.ejb.containers.ContainerSynchronization.beforeCompletion(ContainerSynchronization.java:65)
 at com.sun.jts.jta.SynchronizationImpl.before_completion(SynchronizationImpl.java:48)
 at com.sun.jts.CosTransactions.RegisteredSyncs.distributeBefore(RegisteredSyncs.java:108)
 at com.sun.jts.CosTransactions.TopCoordinator.beforeCompletion(TopCoordinator.java:2289)
 at com.sun.jts.CosTransactions.CoordinatorTerm.commit(CoordinatorTerm.java:233)
 at com.sun.jts.CosTransactions.TerminatorImpl.commit(TerminatorImpl.java:208)
 at com.sun.jts.CosTransactions.CurrentImpl.commit(CurrentImpl.java:386)
 at com.sun.jts.jta.TransactionManagerImpl.commit(TransactionManagerImpl.java:208)
 at com.sun.enterprise.distributedtx.J2EETransactionManagerImpl.commit(J2EETransactionManagerImpl.java:434)
 at com.sun.ejb.containers.BaseContainer.completeNewTx(BaseContainer.java:1460)
 at com.sun.ejb.containers.BaseContainer.postInvokeTx(BaseContainer.java:1278)
 at com.sun.ejb.containers.BaseContainer.postInvoke(BaseContainer.java:397)
 at com.telesenskscl.processes.ProcessesBean_PM_RemoteHomeImpl.create(ProcessesBean_PM_RemoteHomeImpl.java:41)
 at com.telesenskscl.processes._ProcessesBean_PM_RemoteHomeImpl_Tie._invoke(Unknown Source)
 at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatchToServant(GenericPOAServerSC.java:519)
 at com.sun.corba.ee.internal.POA.GenericPOAServerSC.internalDispatch(GenericPOAServerSC.java:204)
 at com.sun.corba.ee.internal.POA.GenericPOAServerSC.dispatch(GenericPOAServerSC.java:112)
 at com.sun.corba.ee.internal.iiop.ORB.process(ORB.java:273)
 at com.sun.corba.ee.internal.iiop.RequestProcessor.process(RequestProcessor.java:84)
 at com.sun.corba.ee.internal.orbutil.ThreadPool$PooledThread.run(ThreadPool.java:99)
Please help me ASAP. Thanks in advance

I found problem was with my code. I wrote
newPrs_sbs = prs_sbs; instead of
prs_sbs = newPrs_sbs;
This solves my problem
Thanks to all.....

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sunnymanman wrote:
Dear Friends,
I am thinking a problem, How to extend breadth first Search for Binary Tree to any kind of Tree?? ...The answer is interfaces.
What do all trees have in common? And what do all nodes in trees have in common?
At least these things:
interface Tree<T> {
 Node<T> getRoot();
interface Node<T> {
 T getData();
 List<Node<T>> getChildren();
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class BinaryTree<T extends Comparable<T>> implements Tree<T> {
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 return root;
class BTNode<T> implements Node<T> {
 private T data;
 private Node<T> left, right;
 public List<Node<T>> getChildren() {
 List<Node<T>> children = new ArrayList<Node<T>>();
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 children.add(right);
 return children;
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 return data;
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 return root;
class NTNode<T> implements Node<T> {
 private T data;
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 return data;
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interface Traverser<T> {
 List<Node<T>> traverse(T goal, Tree<T> tree);
}And finally write an implementation for it:
class BreathFirst<T> implements Traverser<T> {
 public List<Node<T>> traverse(T goal, Tree<T> tree) {
 Node<T> start = tree.getRoot();
 List<Node<T>> children = start.getChildren();
 // your algorithm here
 return null; // return your traversal
}... which can be used to traverse any tree! Here's a small demo of how to use it:
public class Test {
 public static void main(String[] args) {
 Tree<Integer> binTree = new BinaryTree<Integer>();
 // populate your binTree
 Tree<Integer> nTree = new NTree<Integer>();
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 Traverser<Integer> bfTraverser = new BreathFirst<Integer>();
 // Look for integer 6 in binTree
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 // Look for integer 6 in nTree
 System.out.println("bTree bfTraversal -> "+bfTraverser.traverse(6, nTree));
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Hi,
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END;Regards,
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How to write lead selection method for a tree by nesting table column

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