RocksJava Change Log

3.13 (8/4/2015)

New Features

Exposed BackupEngine API.
Added CappedPrefixExtractor support. To use such extractor, simply call useCappedPrefixExtractor in either Options or ColumnFamilyOptions.
Added RemoveEmptyValueCompactionFilter.

3.10.0 (3/24/2015)

New Features

Added compression per level API.
MemEnv is now available in RocksJava via RocksMemEnv class.
lz4 compression is now included in rocksjava static library when running make rocksdbjavastatic.

Public API Changes

Overflowing a size_t when setting rocksdb options now throws an IllegalArgumentException, which removes the necessity for a developer to catch these Exceptions explicitly.
The set and get functions for tableCacheRemoveScanCountLimit are deprecated.

By 01/31/2015

New Features

WriteBatchWithIndex support.
Iterator support for WriteBatch and WriteBatchWithIndex
GetUpdatesSince support.
Snapshots carry now information about the related sequence number.
TTL DB support.

By 11/14/2014

New Features

Full support for Column Family.
Slice and Comparator support.
Default merge operator support.
RateLimiter support.

By 06/15/2014

New Features

Added basic Java binding for rocksdb::Env such that multiple RocksDB can share the same thread pool and environment.
Added RestoreBackupableDB

By 05/30/2014

Internal Framework Improvement

Added disOwnNativeHandle to RocksObject, which allows a RocksObject to give-up the ownership of its native handle. This method is useful when sharing and transferring the ownership of RocksDB C++ resources.

By 05/15/2014

New Features

Added RocksObject --- the base class of all RocksDB classes which holds some RocksDB resources in the C++ side.
Use environmental variable JAVA_HOME in Makefile for RocksJava

Public API changes
Renamed org.rocksdb.Iterator to org.rocksdb.RocksIterator to avoid potential confliction with Java built-in Iterator.

By 04/30/2014

New Features

Added Java binding for MultiGet.
Added static method RocksDB.loadLibrary(), which loads necessary library files.
Added Java bindings for 60+ rocksdb::Options.
Added Java binding for BloomFilter.
Added Java binding for ReadOptions.
Added Java binding for memtables.
Added Java binding for sst formats.
Added Java binding for RocksDB Iterator which enables sequential scan operation.
Added Java binding for Statistics
Added Java binding for BackupableDB.

DB Benchmark

Added filluniquerandom, readseq benchmark.
70+ command-line options.
Enabled BloomFilter configuration.

By 04/15/2014

New Features

Added Java binding for WriteOptions.
Added Java binding for WriteBatch, which enables batch-write.
Added Java binding for rocksdb::Options.
Added Java binding for block cache.
Added Java version DB Benchmark.

DB Benchmark

Added readwhilewriting benchmark.

Internal Framework Improvement

Avoid a potential byte-array-copy between c++ and Java in RocksDB.get.
Added SizeUnit in org.rocksdb.util to store consts like KB and GB.

03/28/2014

RocksJava project started.
Added Java binding for RocksDB, which supports Open, Close, Get and Put.