org.rocksdb

类 OptimisticTransactionDB

java.lang.Object

org.rocksdb.AbstractNativeReference

org.rocksdb.AbstractImmutableNativeReference

org.rocksdb.RocksObject

org.rocksdb.RocksDB

org.rocksdb.OptimisticTransactionDB

所有已实现的接口:

java.lang.AutoCloseable

public class OptimisticTransactionDB
extends RocksDB

Database with Transaction support.

嵌套类概要

从类继承的嵌套类/接口 org.rocksdb.RocksDB

RocksDB.CountAndSize, RocksDB.LiveFiles, RocksDB.Version

字段概要

从类继承的字段 org.rocksdb.RocksDB

DEFAULT_COLUMN_FAMILY, NOT_FOUND, options_

从类继承的字段 org.rocksdb.RocksObject

nativeHandle_

从类继承的字段 org.rocksdb.AbstractImmutableNativeReference

owningHandle_

方法概要

限定符和类型	方法和说明
Transaction	beginTransaction(WriteOptions writeOptions) Starts a new Transaction.
Transaction	beginTransaction(WriteOptions writeOptions, OptimisticTransactionOptions optimisticTransactionOptions) Starts a new Transaction.
Transaction	beginTransaction(WriteOptions writeOptions, OptimisticTransactionOptions optimisticTransactionOptions, Transaction oldTransaction) Starts a new Transaction.
Transaction	beginTransaction(WriteOptions writeOptions, Transaction oldTransaction) Starts a new Transaction.
void	close() This is similar to closeE() except that it silently ignores any errors.
void	closeE() This is similar to close() except that it throws an exception if any error occurs.
protected void	disposeInternal(long handle)
RocksDB	getBaseDB() Get the underlying database that was opened.
static OptimisticTransactionDB	open(DBOptions dbOptions, java.lang.String path, java.util.List<ColumnFamilyDescriptor> columnFamilyDescriptors, java.util.List<ColumnFamilyHandle> columnFamilyHandles) Open an OptimisticTransactionDB similar to RocksDB.open(DBOptions, String, List, List).
protected static long	open(long optionsHandle, java.lang.String path)
protected static long[]	open(long handle, java.lang.String path, byte[][] columnFamilyNames, long[] columnFamilyOptions)
static OptimisticTransactionDB	open(Options options, java.lang.String path) Open an OptimisticTransactionDB similar to RocksDB.open(Options, String).

从类继承的方法 org.rocksdb.RocksDB

cancelAllBackgroundWork, compactFiles, compactFiles, compactRange, compactRange, compactRange, compactRange, compactRange, continueBackgroundWork, createColumnFamilies, createColumnFamilies, createColumnFamily, delete, delete, delete, delete, delete, delete, delete, delete, delete, delete, deleteFile, deleteFilesInRanges, deleteRange, deleteRange, deleteRange, deleteRange, destroyColumnFamilyHandle, destroyDB, disableFileDeletions, dropColumnFamilies, dropColumnFamily, enableAutoCompaction, enableFileDeletions, endTrace, flush, flush, flush, flushWal, get, get, get, get, get, get, get, get, get, get, get, get, get, get, get, get, get, get, getAggregatedLongProperty, getApproximateMemTableStats, getApproximateMemTableStats, getApproximateSizes, getApproximateSizes, getColumnFamilyMetaData, getColumnFamilyMetaData, getDBOptions, getDefaultColumnFamily, getEnv, getLatestSequenceNumber, getLiveFiles, getLiveFiles, getLiveFilesMetaData, getLongProperty, getLongProperty, getMapProperty, getMapProperty, getName, getOptions, getOptions, getPropertiesOfAllTables, getPropertiesOfAllTables, getPropertiesOfTablesInRange, getPropertiesOfTablesInRange, getProperty, getProperty, getSnapshot, getSortedWalFiles, getUpdatesSince, ingestExternalFile, ingestExternalFile, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, keyMayExist, level0StopWriteTrigger, level0StopWriteTrigger, listColumnFamilies, loadLibrary, loadLibrary, maxMemCompactionLevel, maxMemCompactionLevel, merge, merge, merge, merge, merge, merge, merge, merge, multiGetAsList, multiGetAsList, multiGetAsList, multiGetAsList, multiGetByteBuffers, multiGetByteBuffers, multiGetByteBuffers, multiGetByteBuffers, newIterator, newIterator, newIterator, newIterator, newIterators, newIterators, numberLevels, numberLevels, open, open, openAsSecondary, openAsSecondary, openReadOnly, openReadOnly, openReadOnly, openReadOnly, openReadOnly, openReadOnly, pauseBackgroundWork, promoteL0, promoteL0, put, put, put, put, put, put, put, put, put, put, releaseSnapshot, resetStats, rocksdbVersion, setDBOptions, setOptions, setOptions, singleDelete, singleDelete, singleDelete, singleDelete, startTrace, storeOptionsInstance, suggestCompactRange, suggestCompactRange, syncWal, tryCatchUpWithPrimary, verifyChecksum, write, write

从类继承的方法 org.rocksdb.RocksObject

disposeInternal, getNativeHandle

从类继承的方法 org.rocksdb.AbstractImmutableNativeReference

disOwnNativeHandle, isOwningHandle

从类继承的方法 java.lang.Object

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

方法详细资料

open

public static OptimisticTransactionDB open(Options options,
                                           java.lang.String path)
                                    throws RocksDBException

Open an OptimisticTransactionDB similar to RocksDB.open(Options, String).

参数:

options - Options instance.

path - the path to the rocksdb.

返回:

a OptimisticTransactionDB instance on success, null if the specified OptimisticTransactionDB can not be opened.

抛出:

RocksDBException - if an error occurs whilst opening the database.

open

public static OptimisticTransactionDB open(DBOptions dbOptions,
                                           java.lang.String path,
                                           java.util.List<ColumnFamilyDescriptor> columnFamilyDescriptors,
                                           java.util.List<ColumnFamilyHandle> columnFamilyHandles)
                                    throws RocksDBException

Open an OptimisticTransactionDB similar to RocksDB.open(DBOptions, String, List, List).

参数:

dbOptions - DBOptions instance.

path - the path to the rocksdb.

columnFamilyDescriptors - list of column family descriptors

columnFamilyHandles - will be filled with ColumnFamilyHandle instances

返回:

a OptimisticTransactionDB instance on success, null if the specified OptimisticTransactionDB can not be opened.

抛出:

RocksDBException - if an error occurs whilst opening the database.

closeE

public void closeE()
            throws RocksDBException

This is similar to close() except that it throws an exception if any error occurs.

This will not fsync the WAL files. If syncing is required, the caller must first call RocksDB.syncWal() or RocksDB.write(WriteOptions, WriteBatch) using an empty write batch with WriteOptions.setSync(boolean) set to true.

See also close().

覆盖:

closeE 在类中 RocksDB

抛出:

RocksDBException - if an error occurs whilst closing.

close

public void close()

This is similar to closeE() except that it silently ignores any errors.

This will not fsync the WAL files. If syncing is required, the caller must first call RocksDB.syncWal() or RocksDB.write(WriteOptions, WriteBatch) using an empty write batch with WriteOptions.setSync(boolean) set to true.

See also close().

指定者:

close 在接口中 java.lang.AutoCloseable

覆盖:

close 在类中 RocksDB

beginTransaction

public Transaction beginTransaction(WriteOptions writeOptions)

Starts a new Transaction.

Caller is responsible for calling AutoCloseable.close() on the returned transaction when it is no longer needed.

参数:

writeOptions - Any write options for the transaction

返回:

a new transaction

beginTransaction

public Transaction beginTransaction(WriteOptions writeOptions,
                                    OptimisticTransactionOptions optimisticTransactionOptions)

Starts a new Transaction.

Caller is responsible for calling AutoCloseable.close() on the returned transaction when it is no longer needed.

参数:

writeOptions - Any write options for the transaction

optimisticTransactionOptions - Any options for the transaction

返回:

a new transaction

beginTransaction

public Transaction beginTransaction(WriteOptions writeOptions,
                                    Transaction oldTransaction)

Starts a new Transaction.

Caller is responsible for calling AutoCloseable.close() on the returned transaction when it is no longer needed.

参数:

writeOptions - Any write options for the transaction

oldTransaction - this Transaction will be reused instead of allocating a new one. This is an optimization to avoid extra allocations when repeatedly creating transactions.

返回:

The oldTransaction which has been reinitialized as a new transaction

beginTransaction

public Transaction beginTransaction(WriteOptions writeOptions,
                                    OptimisticTransactionOptions optimisticTransactionOptions,
                                    Transaction oldTransaction)

Starts a new Transaction.

Caller is responsible for calling AutoCloseable.close() on the returned transaction when it is no longer needed.

参数:

writeOptions - Any write options for the transaction

optimisticTransactionOptions - Any options for the transaction

oldTransaction - this Transaction will be reused instead of allocating a new one. This is an optimization to avoid extra allocations when repeatedly creating transactions.

返回:

The oldTransaction which has been reinitialized as a new transaction

getBaseDB

public RocksDB getBaseDB()

Get the underlying database that was opened.

返回:

The underlying database that was opened.

disposeInternal

protected final void disposeInternal(long handle)

覆盖:

disposeInternal 在类中 RocksDB

open

protected static long open(long optionsHandle,
                           java.lang.String path)
                    throws RocksDBException

抛出:

RocksDBException

open

protected static long[] open(long handle,
                             java.lang.String path,
                             byte[][] columnFamilyNames,
                             long[] columnFamilyOptions)