rocksdb/java/rocksjni/transaction_log.cc

79 lines
2.5 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++ and enables
// calling c++ rocksdb::Iterator methods from Java side.
#include <jni.h>
#include <stdio.h>
#include <stdlib.h>
#include "include/org_rocksdb_TransactionLogIterator.h"
#include "rocksdb/transaction_log.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_TransactionLogIterator
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_TransactionLogIterator_disposeInternal(
JNIEnv* env, jobject jobj, jlong handle) {
delete reinterpret_cast<rocksdb::TransactionLogIterator*>(handle);
}
/*
* Class: org_rocksdb_TransactionLogIterator
* Method: isValid
* Signature: (J)Z
*/
jboolean Java_org_rocksdb_TransactionLogIterator_isValid(
JNIEnv* env, jobject jobj, jlong handle) {
return reinterpret_cast<rocksdb::TransactionLogIterator*>(handle)->Valid();
}
/*
* Class: org_rocksdb_TransactionLogIterator
* Method: next
* Signature: (J)V
*/
void Java_org_rocksdb_TransactionLogIterator_next(
JNIEnv* env, jobject jobj, jlong handle) {
reinterpret_cast<rocksdb::TransactionLogIterator*>(handle)->Next();
}
/*
* Class: org_rocksdb_TransactionLogIterator
* Method: status
* Signature: (J)V
*/
void Java_org_rocksdb_TransactionLogIterator_status(
JNIEnv* env, jobject jobj, jlong handle) {
rocksdb::Status s = reinterpret_cast<
rocksdb::TransactionLogIterator*>(handle)->status();
if (!s.ok()) {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
}
}
/*
* Class: org_rocksdb_TransactionLogIterator
* Method: getBatch
* Signature: (J)Lorg/rocksdb/TransactionLogIterator$BatchResult
*/
jobject Java_org_rocksdb_TransactionLogIterator_getBatch(
JNIEnv* env, jobject jobj, jlong handle) {
rocksdb::BatchResult batch_result =
reinterpret_cast<rocksdb::TransactionLogIterator*>(handle)->GetBatch();
jclass jclazz = env->FindClass(
"org/rocksdb/TransactionLogIterator$BatchResult");
assert(jclazz != nullptr);
jmethodID mid = env->GetMethodID(
jclazz, "<init>", "(Lorg/rocksdb/TransactionLogIterator;JJ)V");
assert(mid != nullptr);
return env->NewObject(jclazz, mid, jobj,
batch_result.sequence, batch_result.writeBatchPtr.release());
}