Package org.apache.flink.contrib.streaming.state

Class RocksDBWriteBatchWrapper

java.lang.Object

org.apache.flink.contrib.streaming.state.RocksDBWriteBatchWrapper

All Implemented Interfaces:

AutoCloseable

public class RocksDBWriteBatchWrapper
extends Object
implements AutoCloseable

It's a wrapper class around RocksDB's WriteBatch for writing in bulk.

IMPORTANT: This class is not thread safe.

Constructor Summary

Constructors

Constructor	Description
RocksDBWriteBatchWrapper(org.rocksdb.RocksDB rocksDB, long writeBatchSize)
RocksDBWriteBatchWrapper(org.rocksdb.RocksDB rocksDB, org.rocksdb.WriteOptions options)
RocksDBWriteBatchWrapper(org.rocksdb.RocksDB rocksDB, org.rocksdb.WriteOptions options, int capacity, long batchSize)
RocksDBWriteBatchWrapper(org.rocksdb.RocksDB rocksDB, org.rocksdb.WriteOptions options, long batchSize)

Method Summary

Modifier and Type	Method	Description
void	close()
void	flush()
void	put(org.rocksdb.ColumnFamilyHandle handle, byte[] key, byte[] value)
void	remove(org.rocksdb.ColumnFamilyHandle handle, byte[] key)

Methods inherited from class java.lang.Object

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

Constructor Detail

RocksDBWriteBatchWrapper

public RocksDBWriteBatchWrapper(@Nonnull
                                org.rocksdb.RocksDB rocksDB,
                                long writeBatchSize)

RocksDBWriteBatchWrapper

public RocksDBWriteBatchWrapper(@Nonnull
                                org.rocksdb.RocksDB rocksDB,
                                @Nullable
                                org.rocksdb.WriteOptions options)

RocksDBWriteBatchWrapper

public RocksDBWriteBatchWrapper(@Nonnull
                                org.rocksdb.RocksDB rocksDB,
                                @Nullable
                                org.rocksdb.WriteOptions options,
                                long batchSize)

RocksDBWriteBatchWrapper

public RocksDBWriteBatchWrapper(@Nonnull
                                org.rocksdb.RocksDB rocksDB,
                                @Nullable
                                org.rocksdb.WriteOptions options,
                                int capacity,
                                long batchSize)

Method Detail

put

public void put(@Nonnull
                org.rocksdb.ColumnFamilyHandle handle,
                @Nonnull
                byte[] key,
                @Nonnull
                byte[] value)
         throws org.rocksdb.RocksDBException

Throws:

org.rocksdb.RocksDBException

remove

public void remove(@Nonnull
                   org.rocksdb.ColumnFamilyHandle handle,
                   @Nonnull
                   byte[] key)
            throws org.rocksdb.RocksDBException

Throws:

org.rocksdb.RocksDBException

flush

public void flush()
           throws org.rocksdb.RocksDBException

Throws:

org.rocksdb.RocksDBException

close

public void close()
           throws org.rocksdb.RocksDBException

Specified by:

close in interface AutoCloseable

Throws:

org.rocksdb.RocksDBException