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

Interface TransactionalFunction<Result>

Type Parameters:

Result - The type of the function call result

All Known Implementing Classes:

AbortCompactionFunction, AbortTxnFunction, AbortTxnsFunction, AcquireTxnLockFunction, AllocateTableWriteIdsFunction, CheckLockFunction, CleanTxnToWriteIdTableFunction, CleanupRecordsFunction, CommitTxnFunction, CompactFunction, EnqueueLockFunction, EnsureValidTxnFunction, FindPotentialCompactionsFunction, GenerateCompactionQueueIdFunction, GetMaterializationInvalidationInfoFunction, GetValidWriteIdsForTableFunction, GetValidWriteIdsFunction, HeartbeatLockFunction, HeartbeatTxnFunction, HeartbeatTxnRangeFunction, LockMaterializationRebuildFunction, MarkCleanedFunction, MinOpenTxnIdWaterMarkFunction, NextCompactionFunction, OnRenameFunction, OpenTxnsFunction, PerformTimeoutsFunction, PurgeCompactionHistoryFunction, ReleaseMaterializationRebuildLocks, ReplTableWriteIdStateFunction, TopCompactionMetricsDataPerTypeFunction, UpdataDatabasePropFunction, UpdateCompactionMetricsDataFunction

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface TransactionalFunction<Result>

A functional interface representing a function call (typically a query or statement) which has a result and done within a database transaction.

Method Summary

Modifier and Type	Method and Description
Result	execute(MultiDataSourceJdbcResource jdbcResource) Implementations typically should execute transsactional database calls inside.

Method Detail

execute

Result execute(MultiDataSourceJdbcResource jdbcResource)
        throws MetaException,
               NoSuchTxnException,
               TxnAbortedException,
               NoSuchLockException

Implementations typically should execute transsactional database calls inside.

Parameters:

jdbcResource - A MultiDataSourceJdbcResource instance responsible for providing all the necessary resources to be able to perform transactional database calls.

Returns:

Returns with the result of the function call.

Throws:

org.springframework.dao.DataAccessException - Thrown if any of the JDBC calls fail

MetaException - Thrown in case of application error within the function

NoSuchTxnException

TxnAbortedException

NoSuchLockException