mirror of https://github.com/facebook/rocksdb.git
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// This file implements the "bridge" between Java and C++ for
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// rocksdb::ColumnFamilyHandle.
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#include <jni.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "include/org_rocksdb_ColumnFamilyHandle.h"
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#include "rocksjni/portal.h"
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/*
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* Class: org_rocksdb_ColumnFamilyHandle
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* Method: getName
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* Signature: (J)[B
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*/
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jbyteArray Java_org_rocksdb_ColumnFamilyHandle_getName(JNIEnv* env,
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jobject /*jobj*/,
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jlong jhandle) {
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auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
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std::string cf_name = cfh->GetName();
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return rocksdb::JniUtil::copyBytes(env, cf_name);
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}
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/*
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* Class: org_rocksdb_ColumnFamilyHandle
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* Method: getID
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* Signature: (J)I
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*/
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jint Java_org_rocksdb_ColumnFamilyHandle_getID(JNIEnv* /*env*/,
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jobject /*jobj*/,
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jlong jhandle) {
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auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
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const int32_t id = cfh->GetID();
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return static_cast<jint>(id);
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}
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/*
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* Class: org_rocksdb_ColumnFamilyHandle
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* Method: getDescriptor
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* Signature: (J)Lorg/rocksdb/ColumnFamilyDescriptor;
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*/
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jobject Java_org_rocksdb_ColumnFamilyHandle_getDescriptor(JNIEnv* env,
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jobject /*jobj*/,
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jlong jhandle) {
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auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
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rocksdb::ColumnFamilyDescriptor desc;
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rocksdb::Status s = cfh->GetDescriptor(&desc);
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if (s.ok()) {
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return rocksdb::ColumnFamilyDescriptorJni::construct(env, &desc);
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} else {
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rocksdb::RocksDBExceptionJni::ThrowNew(env, s);
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return nullptr;
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}
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}
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/*
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* Class: org_rocksdb_ColumnFamilyHandle
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* Method: disposeInternal
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* Signature: (J)V
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*/
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void Java_org_rocksdb_ColumnFamilyHandle_disposeInternal(JNIEnv* /*env*/,
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jobject /*jobj*/,
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jlong jhandle) {
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auto* cfh = reinterpret_cast<rocksdb::ColumnFamilyHandle*>(jhandle);
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assert(cfh != nullptr);
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delete cfh;
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}
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