rocksdb/java/rocksjni/table.cc
fyrz d410b39d59 BlockBasedTableConfig Filter policy support RocksJava
As proposed by yhchiang the filter can now be set in Java for
a BlockBasedTableConfig instance.
2014-10-02 21:17:48 +02:00

76 lines
3.0 KiB
C++

// Copyright (c) 2014, Facebook, Inc. All rights reserved.
// This source code is licensed under the BSD-style license found in the
// LICENSE file in the root directory of this source tree. An additional grant
// of patent rights can be found in the PATENTS file in the same directory.
//
// This file implements the "bridge" between Java and C++ for rocksdb::Options.
#include <jni.h>
#include "include/org_rocksdb_PlainTableConfig.h"
#include "include/org_rocksdb_BlockBasedTableConfig.h"
#include "rocksdb/table.h"
#include "rocksdb/cache.h"
#include "rocksdb/filter_policy.h"
/*
* Class: org_rocksdb_PlainTableConfig
* Method: newTableFactoryHandle
* Signature: (IIDI)J
*/
jlong Java_org_rocksdb_PlainTableConfig_newTableFactoryHandle(
JNIEnv* env, jobject jobj, jint jkey_size, jint jbloom_bits_per_key,
jdouble jhash_table_ratio, jint jindex_sparseness) {
rocksdb::PlainTableOptions options = rocksdb::PlainTableOptions();
options.user_key_len = jkey_size;
options.bloom_bits_per_key = jbloom_bits_per_key;
options.hash_table_ratio = jhash_table_ratio;
options.index_sparseness = jindex_sparseness;
return reinterpret_cast<jlong>(rocksdb::NewPlainTableFactory(options));
}
/*
* Class: org_rocksdb_BlockBasedTableConfig
* Method: newTableFactoryHandle
* Signature: (ZJIJIIZIZZJI)J
*/
jlong Java_org_rocksdb_BlockBasedTableConfig_newTableFactoryHandle(
JNIEnv* env, jobject jobj, jboolean no_block_cache, jlong block_cache_size,
jint block_cache_num_shardbits, jlong block_size, jint block_size_deviation,
jint block_restart_interval, jboolean whole_key_filtering,
jlong jfilterPolicy, jboolean cache_index_and_filter_blocks,
jboolean hash_index_allow_collision, jlong block_cache_compressed_size,
jint block_cache_compressd_num_shard_bits) {
rocksdb::BlockBasedTableOptions options;
options.no_block_cache = no_block_cache;
if (!no_block_cache && block_cache_size > 0) {
if (block_cache_num_shardbits > 0) {
options.block_cache =
rocksdb::NewLRUCache(block_cache_size, block_cache_num_shardbits);
} else {
options.block_cache = rocksdb::NewLRUCache(block_cache_size);
}
}
options.block_size = block_size;
options.block_size_deviation = block_size_deviation;
options.block_restart_interval = block_restart_interval;
options.whole_key_filtering = whole_key_filtering;
if (jfilterPolicy > 0) {
options.filter_policy.reset(
reinterpret_cast<rocksdb::FilterPolicy*>(jfilterPolicy));
}
options.cache_index_and_filter_blocks = cache_index_and_filter_blocks;
options.hash_index_allow_collision = hash_index_allow_collision;
if (block_cache_compressed_size > 0) {
if (block_cache_compressd_num_shard_bits > 0) {
options.block_cache =
rocksdb::NewLRUCache(block_cache_compressed_size,
block_cache_compressd_num_shard_bits);
} else {
options.block_cache = rocksdb::NewLRUCache(block_cache_compressed_size);
}
}
return reinterpret_cast<jlong>(rocksdb::NewBlockBasedTableFactory(options));
}