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RocksDB for Erlang
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deps/rocksdb/java/rocksjni/columnfamilyhandle.cc
// 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 "bridge" between Java and C++ for
// rocksdb::ColumnFamilyHandle.
#include <jni.h>
#include <stdio.h>
#include <stdlib.h>
#include "include/org_rocksdb_ColumnFamilyHandle.h"
#include "rocksjni/portal.h"
/*
* Class: org_rocksdb_ColumnFamilyHandle
* Method: getName
* Signature: (J)[B
*/
jbyteArray Java_org_rocksdb_ColumnFamilyHandle_getName(JNIEnv* env,
jobject /*jobj*/,
jlong jhandle) {
auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
std::string cf_name = cfh->GetName();
return rocksdb::JniUtil::copyBytes(env, cf_name);
}
/*
* Class: org_rocksdb_ColumnFamilyHandle
* Method: getID
* Signature: (J)I
*/
jint Java_org_rocksdb_ColumnFamilyHandle_getID(JNIEnv* /*env*/,
jobject /*jobj*/,
jlong jhandle) {
auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
const int32_t id = cfh->GetID();
return static_cast<jint>(id);
}
/*
* Class: org_rocksdb_ColumnFamilyHandle
* Method: getDescriptor
* Signature: (J)Lorg/rocksdb/ColumnFamilyDescriptor;
*/
jobject Java_org_rocksdb_ColumnFamilyHandle_getDescriptor(JNIEnv* env,
jobject /*jobj*/,
jlong jhandle) {
auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
rocksdb::ColumnFamilyDescriptor desc;
rocksdb::Status s = cfh->GetDescriptor(&desc);
if (s.ok()) {
return rocksdb::ColumnFamilyDescriptorJni::construct(env, &desc);
} else {
rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
return nullptr;
}
}
/*
* Class: org_rocksdb_ColumnFamilyHandle
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_ColumnFamilyHandle_disposeInternal(JNIEnv* /*env*/,
jobject /*jobj*/,
jlong jhandle) {
auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
assert(cfh != nullptr);
delete cfh;
}