org.apache.hadoop.hive.ql.optimizer.lineage

Class ExprProcCtx

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.lineage.ExprProcCtx

All Implemented Interfaces:

NodeProcessorCtx

public class ExprProcCtx
extends Object
implements NodeProcessorCtx

The processor context for the lineage information. This contains the lineage context and the column info and operator information that is being used for the current expression.

Constructor Summary

Constructors

Constructor and Description
ExprProcCtx(LineageCtx lctx, Operator<? extends OperatorDesc> inpOp) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
Operator<? extends OperatorDesc>	getInputOperator() Gets the input operator.
LineageCtx	getLineageCtx() Gets the lineage context.
RowSchema	getSchema()

Methods inherited from class java.lang.Object

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

Constructor Detail

ExprProcCtx

public ExprProcCtx(LineageCtx lctx,
           Operator<? extends OperatorDesc> inpOp)

Constructor.

Parameters:

lctx - The lineage context thatcontains the dependencies for the inputs.

inpOp - The input operator to the current operator.

Method Detail

getLineageCtx

public LineageCtx getLineageCtx()

Gets the lineage context.

Returns:

LineageCtx The lineage context.

getInputOperator

public Operator<? extends OperatorDesc> getInputOperator()

Gets the input operator.

Returns:

Operator The input operator - this is null in case the current operator is a leaf.

getSchema

public RowSchema getSchema()