protected void initialize(PTFExpressionDef eDef, ShapeDetails inpShape) throws HiveException {
ExprNodeDesc exprNode = eDef.getExprNode();
ExprNodeEvaluator exprEval = WindowingExprNodeEvaluatorFactory.get(llInfo, exprNode);
ObjectInspector oi = initExprNodeEvaluator(exprEval, exprNode, inpShape);
eDef.setExprEvaluator(exprEval);
eDef.setOI(oi);
}
static void setupWdwFnEvaluator(WindowFunctionDef def) throws HiveException {
ArrayList<PTFExpressionDef> args = def.getArgs();
ArrayList<ObjectInspector> argOIs = new ArrayList<ObjectInspector>();
ObjectInspector[] funcArgOIs = null;
if (args != null) {
for (PTFExpressionDef arg : args) {
argOIs.add(arg.getOI());
}
funcArgOIs = new ObjectInspector[args.size()];
funcArgOIs = argOIs.toArray(funcArgOIs);
}
GenericUDAFEvaluator wFnEval = def.getWFnEval();
ObjectInspector OI = wFnEval.init(GenericUDAFEvaluator.Mode.COMPLETE, funcArgOIs);
def.setWFnEval(wFnEval);
def.setOI(OI);
}