org.apache.hadoop.hive.metastore.txn.jdbc.commands

Class RemoveDuplicateCompleteTxnComponentsCommand

java.lang.Object

org.apache.hadoop.hive.metastore.txn.jdbc.commands.RemoveDuplicateCompleteTxnComponentsCommand

All Implemented Interfaces:

ParameterizedCommand, ParameterizedQuery

public class RemoveDuplicateCompleteTxnComponentsCommand
extends Object
implements ParameterizedCommand

Field Summary

Fields

Modifier and Type	Field and Description
static RemoveDuplicateCompleteTxnComponentsCommand	INSTANCE

Fields inherited from interface org.apache.hadoop.hive.metastore.txn.jdbc.ParameterizedCommand

AT_LEAST_ONE_ROW, EXACTLY_ONE_ROW

Method Summary

Modifier and Type	Method and Description
String	getParameterizedQueryString(DatabaseProduct databaseProduct) The parameterized query string.
org.springframework.jdbc.core.namedparam.SqlParameterSource	getQueryParameters() An SqlParameterSource instance containing the required parameters for the query string.
Function<Integer,Boolean>	resultPolicy()

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static RemoveDuplicateCompleteTxnComponentsCommand INSTANCE

Method Detail

resultPolicy

public Function<Integer,Boolean> resultPolicy()

Specified by:

resultPolicy in interface ParameterizedCommand

Returns:

Returns the result policy to be used to validate the number of affected rows.

getParameterizedQueryString

public String getParameterizedQueryString(DatabaseProduct databaseProduct)
                                   throws MetaException

Description copied from interface: ParameterizedQuery

The parameterized query string. It is allowed if the query has no parameters at all.

Specified by:

getParameterizedQueryString in interface ParameterizedQuery

Parameters:

databaseProduct - A DatabaseProduct instance representing the type of the underlying HMS dabatabe.

Returns:

Returns the parameterized query string.

Throws:

MetaException - Thrown if the query string cannot be assembled.

getQueryParameters

public org.springframework.jdbc.core.namedparam.SqlParameterSource getQueryParameters()

Description copied from interface: ParameterizedQuery

An SqlParameterSource instance containing the required parameters for the query string. If the query is not parameterized, this method can either return null or an empty SqlParameterSource.

Specified by:

getQueryParameters in interface ParameterizedQuery

Returns:

Returns the SqlParameterSource containing the parameters for the query.