Top Link 10.1.3 is it possible to define hierarchical queries in jdev

Question

Is it possible to define a hierarchical query in a named query in the mapping workbench (jdev 10.1.3) or we have to do it dynamically with the java api ?
Any example is welcome.
Best regards

Answer 1

i didn't find the method that return the readallquery object i need from my named query
i'm doing something wrong ?
public class FlexTreeSetHierarchicalClause
  public static void setHierarchicalClause(oracle.toplink.descriptors.ClassDescriptor descriptor)
    // instantiante expression builder to build the expressions
    ExpressionBuilder expressionBuilder = new ExpressionBuilder();
    // Specifies a START WITH expression
    Expression startExpr = expressionBuilder.get("Flextree").get("flexitemI").equal(expressionBuilder.get("Flextreenode").get("flexitemparentI"));
    // Specifies a CONNECT BY expression
    Expression connectBy = expressionBuilder.get("Flextreenode").get("flexitemchildI").equal(expressionBuilder.get("Flextreenode").get("flexitemparentI"));
    //Specifies an ORDER SIBLINGS BY vector
    Vector order = new Vector();
    order.addElement(expressionBuilder.get("Flextreenode").get("flexitemchildI").get("flextext").get("label"));
    // get the readallobject to add the hierarchical clause
    DatabaseQuery dq = descriptor.getQueryManager().getQuery("getFlexTreeByName");
    ReadAllQuery raq = descriptor.getQueryManager().getReadAllQuery();
    // add the hierarchical clause
    raq.setHierarchicalQueryClause(startExpr, connectBy, order);