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

Class OpProcFactory.TableScanLineage

java.lang.Object

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

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

All Implemented Interfaces:

NodeProcessor

Enclosing class:

OpProcFactory

public static class OpProcFactory.TableScanLineage
extends OpProcFactory.DefaultLineage
implements NodeProcessor

Processor for TableScan Operator. This actually creates the base column mappings.

Field Summary

Fields inherited from class org.apache.hadoop.hive.ql.optimizer.lineage.OpProcFactory.DefaultLineage

LOG

Constructor Summary

Constructors

Constructor and Description
TableScanLineage()

Method Summary

Modifier and Type	Method and Description
java.lang.Object	process(Node nd, java.util.Stack<Node> stack, NodeProcessorCtx procCtx, java.lang.Object... nodeOutputs) Generic process for all ops that don't have specific implementations.

Methods inherited from class java.lang.Object

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

Constructor Detail

TableScanLineage

public TableScanLineage()

Method Detail

process

public java.lang.Object process(Node nd,
                                java.util.Stack<Node> stack,
                                NodeProcessorCtx procCtx,
                                java.lang.Object... nodeOutputs)
                         throws SemanticException

Description copied from interface: NodeProcessor

Generic process for all ops that don't have specific implementations.

Specified by:

process in interface NodeProcessor

Overrides:

process in class OpProcFactory.DefaultLineage

Parameters:

nd - operator to process

procCtx - operator processor context

nodeOutputs - A variable argument list of outputs from other nodes in the walk

Returns:

Object to be returned by the process call

Throws:

SemanticException