WorkflowRepositoryView.java 文件源码

private ModelHandle getModelHandle() {
  ModelHandle handle = null;
  ISelection selection = viewer.getSelection();
  if (selection instanceof TreeSelection) {
    TreeSelection treeSelection = (TreeSelection) selection;
    if (treeSelection.size() == 1) {
      Object selObj = treeSelection.getFirstElement();
      if(selObj instanceof ModelCodeTreeNode) {
        ModelCodeTreeNode modelCodeNode = (ModelCodeTreeNode)selObj;
        try {
          handle = modelCodeNode.getActiveModelHandle();
        } catch (EntryNotFoundException e) {
          // ignore and just interpret as non-drag-able...
        }
      }
    }
  }
  return handle;
}