code: public void setCase(XExpression newCase)
  	{
  		if (newCase != case_)
  		{
  			NotificationChain msgs = null;
  			if (case_ != null)
  				msgs = ((InternalEObject)case_).eInverseRemove(this, EOPPOSITE_FEATURE_BASE - XbasePackage.XCASE_PART__CASE, null, msgs);
  			if (newCase != null)
  				msgs = ((InternalEObject)newCase).eInverseAdd(this, EOPPOSITE_FEATURE_BASE - XbasePackage.XCASE_PART__CASE, null, msgs);
  			msgs = basicSetCase(newCase, msgs);
  			if (msgs != null) msgs.dispatch();
  		}
  		else if (eNotificationRequired())
  			eNotify(new ENotificationImpl(this, Notification.SET, XbasePackage.XCASE_PART__CASE, newCase, newCase));
  	}
docs: <!-- begin-user-doc -->
  <!-- end-user-doc -->
  @generated