rocksdb/java/rocksjni/filter.cc
2016-02-09 15:12:00 -08:00

47 lines
1.5 KiB
C++

// Copyright (c) 2011-present, 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::FilterPolicy.
#include <stdio.h>
#include <stdlib.h>
#include <jni.h>
#include <string>
#include "include/org_rocksdb_Filter.h"
#include "include/org_rocksdb_BloomFilter.h"
#include "rocksjni/portal.h"
#include "rocksdb/filter_policy.h"
/*
* Class: org_rocksdb_BloomFilter
* Method: createBloomFilter
* Signature: (IZ)V
*/
void Java_org_rocksdb_BloomFilter_createNewBloomFilter(
JNIEnv* env, jobject jobj, jint bits_per_key,
jboolean use_block_base_builder) {
rocksdb::FilterPolicy* fp = const_cast<rocksdb::FilterPolicy *>(
rocksdb::NewBloomFilterPolicy(bits_per_key, use_block_base_builder));
std::shared_ptr<rocksdb::FilterPolicy> *pFilterPolicy =
new std::shared_ptr<rocksdb::FilterPolicy>;
*pFilterPolicy = std::shared_ptr<rocksdb::FilterPolicy>(fp);
rocksdb::FilterJni::setHandle(env, jobj, pFilterPolicy);
}
/*
* Class: org_rocksdb_Filter
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_Filter_disposeInternal(
JNIEnv* env, jobject jobj, jlong jhandle) {
std::shared_ptr<rocksdb::FilterPolicy> *handle =
reinterpret_cast<std::shared_ptr<rocksdb::FilterPolicy> *>(jhandle);
handle->reset();
}