org.apache.hadoop.hive.ql.hooks

Class OperatorHealthCheckerHook

java.lang.Object

org.apache.hadoop.hive.ql.hooks.OperatorHealthCheckerHook

All Implemented Interfaces:

ExecuteWithHookContext, Hook

public class OperatorHealthCheckerHook
extends Object
implements ExecuteWithHookContext

Checks some operator quality rules. Checks whenever operator ids are not reused. Checks some level of expression/schema consistency Some sanity checks on SelectOperators

Constructor Summary

Constructors

Constructor and Description
OperatorHealthCheckerHook()

Method Summary

Modifier and Type	Method and Description
static void	checkOperator(Operator<?> op)
void	run(HookContext hookContext)
static void	runCheck(ParseContext pctx)

Methods inherited from class java.lang.Object

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

Constructor Detail

OperatorHealthCheckerHook

public OperatorHealthCheckerHook()

Method Detail

checkOperator

public static void checkOperator(Operator<?> op)

runCheck

public static void runCheck(ParseContext pctx)
                     throws SemanticException

Throws:

SemanticException

run

public void run(HookContext hookContext)
         throws Exception

Specified by:

run in interface ExecuteWithHookContext

Parameters:

hookContext - The hook context passed to each hooks.

Throws:

Exception