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

equals, 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