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.