org.apache.hadoop.hive.ql.optimizer.ppr
Class PartExprEvalUtils

java.lang.Object
  org.apache.hadoop.hive.ql.optimizer.ppr.PartExprEvalUtils

public class PartExprEvalUtils
extends Object

Constructor Summary

PartExprEvalUtils()

Method Summary

static Object	evalExprWithPart(ExprNodeDesc expr, Partition p, List<VirtualColumn> vcs, StructObjectInspector rowObjectInspector) Evaluate expression with partition columns
static Object	evaluateExprOnPart(ObjectPair<PrimitiveObjectInspector,ExprNodeEvaluator> pair, Object partColValues)
static ObjectPair<PrimitiveObjectInspector,ExprNodeEvaluator>	prepareExpr(ExprNodeGenericFuncDesc expr, List<String> partNames)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PartExprEvalUtils

public PartExprEvalUtils()

Method Detail

evalExprWithPart

public static Object evalExprWithPart(ExprNodeDesc expr,
                                      Partition p,
                                      List<VirtualColumn> vcs,
                                      StructObjectInspector rowObjectInspector)
                               throws HiveException

Evaluate expression with partition columns

Parameters:

expr -

partSpec -

rowObjectInspector -

Returns:

value returned by the expression

Throws:

HiveException

prepareExpr

public static ObjectPair<PrimitiveObjectInspector,ExprNodeEvaluator> prepareExpr(ExprNodeGenericFuncDesc expr,
                                                                                 List<String> partNames)
                                                                          throws HiveException

Throws:

HiveException

evaluateExprOnPart

public static Object evaluateExprOnPart(ObjectPair<PrimitiveObjectInspector,ExprNodeEvaluator> pair,
                                        Object partColValues)
                                 throws HiveException

Throws:

HiveException