return Dependency.CONTEXT_SET + Dependency.CONTEXT_ITEM;
return Dependency.CONTEXT_SET + Dependency.CONTEXT_VARS;
	public int getDependencies(XQueryContext context) {//		if(context.getCurrentStackSize() > positionInStack)//			return Dependency.CONTEXT_SET + Dependency.GLOBAL_VARS+ Dependency.CONTEXT_ITEM;//		else//			return Dependency.CONTEXT_SET + Dependency.LOCAL_VARS;				if(context.getCurrentStackSize() > positionInStack)			return Dependency.CONTEXT_SET + Dependency.CONTEXT_ITEM;		else			return Dependency.CONTEXT_SET + Dependency.LOCAL_VARS;	}