blob: 5d3dee3b1a8eb2d25f60de4f382b3a05652457ed [file] [log] [blame]
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
// This file implements the callback "bridge" between Java and C++ for
// rocksdb::WriteBatch::Handler.
#include <jni.h>
#include "rocksdb/write_batch.h"
namespace rocksdb {
* This class acts as a bridge between C++
* and Java. The methods in this class will be
* called back from the RocksDB storage engine (C++)
* which calls the appropriate Java method.
* This enables Write Batch Handlers to be implemented in Java.
class WriteBatchHandlerJniCallback : public WriteBatch::Handler {
JNIEnv* env, jobject jWriteBackHandler);
void Put(const Slice& key, const Slice& value);
void Merge(const Slice& key, const Slice& value);
void Delete(const Slice& key);
void DeleteRange(const Slice& beginKey, const Slice& endKey);
void LogData(const Slice& blob);
bool Continue();
JNIEnv* m_env;
jobject m_jWriteBatchHandler;
jbyteArray sliceToJArray(const Slice& s);
jmethodID m_jPutMethodId;
jmethodID m_jMergeMethodId;
jmethodID m_jDeleteMethodId;
jmethodID m_jDeleteRangeMethodId;
jmethodID m_jLogDataMethodId;
jmethodID m_jContinueMethodId;
} // namespace rocksdb