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

Interface ParameterizedQuery

All Known Subinterfaces:

ParameterizedCommand, QueryHandler<Result>

All Known Implementing Classes:

AbortedTxnHandler, AbortTxnInfoHandler, CheckFailedCompactionsHandler, CompactionCandidateHandler, CompactionMetricsDataHandler, CountOpenTxnsHandler, DbTimeHandler, DeleteInvalidOpenTxnsCommand, DeleteReplTxnMapEntryCommand, FindColumnsWithStatsHandler, FindTxnStateHandler, GetCompactionInfoHandler, GetDatabaseIdHandler, GetHighWaterMarkHandler, GetLatestCommittedCompactionInfoHandler, GetLocksByLockId, GetMaxAllocatedTableWriteIdHandler, GetOpenTxnsListHandler, GetOpenTxnTypeAndLockHandler, GetTxnDbsUpdatedHandler, GetWriteIdsHandler, InClauseBatchCommand, InsertCompactionInfoCommand, InsertCompactionRequestCommand, LatestTxnIdInConflictHandler, MetricsInfoHandler, MinUncommittedTxnIdHandler, OpenTxnTimeoutLowBoundaryTxnIdHandler, ReadyToCleanAbortHandler, ReadyToCleanHandler, RemoveCompactionMetricsDataCommand, RemoveDuplicateCompleteTxnComponentsCommand, RemoveTxnsFromMinHistoryLevelCommand, RemoveWriteIdsFromMinHistoryCommand, ShowCompactHandler, ShowLocksHandler, TablesWithAbortedTxnsHandler, TargetTxnIdListHandler, TxnIdForWriteIdHandler

public interface ParameterizedQuery

A pair of a Spring NamedParameterJdbcTemplate style parameterized query string
(for example: SELECT * FROM TBL WHERE ID = :id) and its parameters.

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.

Method Detail

getParameterizedQueryString

String getParameterizedQueryString(DatabaseProduct databaseProduct)
                            throws MetaException

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

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

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

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.

Returns:

Returns the SqlParameterSource containing the parameters for the query.