@Override
	public void setSource(EditPart editPart) {
		System.out.println("setSource "+editPart);
		super.setSource(editPart);
//source should be diagrameditpart
	}

	/* (non-Javadoc)
	 * @see org.eclipse.gef.editparts.AbstractConnectionEditPart#setTarget(org.eclipse.gef.EditPart)
	 */
	@Override
	public void setTarget(EditPart editPart) {
		System.out.println("setTarget "+editPart);
		super.setTarget(editPart);
//target should be diagrameditpart
	}

@Override
	protected ConnectionAnchor getSourceConnectionAnchor() {
		System.out.println("getSourceConnectionAnchor");
		return super.getSourceConnectionAnchor();
//xyanchor
	}

	/* (non-Javadoc)
	 * @see  org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeE ditPart#getSourceConnectionAnchor(org.eclipse.gef.Connection EditPart)
	 */
	@Override
	public ConnectionAnchor getSourceConnectionAnchor(
			ConnectionEditPart connEditPart) {
		System.out.println("getSourceConnectionAnchor");
		return super.getSourceConnectionAnchor(connEditPart);
//xyanchor
	}

	/* (non-Javadoc)
	 * @see  org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeE ditPart#getSourceConnectionAnchor(org.eclipse.gef.Request)
	 */
	@Override
	public ConnectionAnchor getSourceConnectionAnchor(Request request) {
		System.out.println("getSourceConnectionAnchor");
		return super.getSourceConnectionAnchor(request);
//xyanchor
	}

	/* (non-Javadoc)
	 * @see  org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeE ditPart#getTargetConnectionAnchor()
	 */
	@Override
	protected ConnectionAnchor getTargetConnectionAnchor() {
		System.out.println("getTargetConnectionAnchor");
		return super.getTargetConnectionAnchor();
//xyanchor
	}

	/* (non-Javadoc)
	 * @see  org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeE ditPart#getTargetConnectionAnchor(org.eclipse.gef.Connection EditPart)
	 */
	@Override
	public ConnectionAnchor getTargetConnectionAnchor(
			ConnectionEditPart connEditPart) {
		System.out.println("getTargetConnectionAnchor");
		return super.getTargetConnectionAnchor(connEditPart);
//xyanchor
	}

	/* (non-Javadoc)
	 * @see  org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeE ditPart#getTargetConnectionAnchor(org.eclipse.gef.Request)
	 */
	@Override
	public ConnectionAnchor getTargetConnectionAnchor(Request request) {
		System.out.println("getTargetConnectionAnchor");
		return super.getTargetConnectionAnchor(request);
//xyanchor
	}

	/* (non-Javadoc)
	 * @see  org.eclipse.gmf.runtime.diagram.ui.editparts.ConnectionNodeE ditPart#getTargetEditPart(org.eclipse.gef.Request)
	 */
	@Override
	public EditPart getTargetEditPart(Request request) {
		System.out.println("getTargetEditPart");
		return super.getTargetEditPart(request);
//xyanchor
	}