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ab3e566699
Summary: 1. Move disOwnNativeHandle() function from RocksDB to RocksObject to allow other RocksObject to use disOwnNativeHandle() when its ownership of native handle has been transferred. 2. RocksObject now has an abstract implementation of dispose(), which does the following two things. First, it checks whether both isOwningNativeHandle() and isInitialized() return true. If so, it will call the protected abstract function dispose0(), which all the subclasses of RocksObject should implement. Second, it sets nativeHandle_ = 0. This redesign ensure all subclasses of RocksObject have the same dispose behavior. 3. All subclasses of RocksObject now should implement dispose0() instead of dispose(), and dispose0() will be called only when isInitialized() returns true. Test Plan: make rocksdbjava make jtest Reviewers: dhruba, sdong, ankgup87, rsumbaly, swapnilghike, zzbennett, haobo Reviewed By: haobo Subscribers: leveldb Differential Revision: https://reviews.facebook.net/D18801
44 lines
1.3 KiB
Java
44 lines
1.3 KiB
Java
// Copyright (c) 2014, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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package org.rocksdb;
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/**
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* BackupableDBOptions to control the behavior of a backupable database.
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* It will be used during the creation of a BackupableDB.
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*
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* Note that dispose() must be called before an Options instance
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* become out-of-scope to release the allocated memory in c++.
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*/
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public class BackupableDBOptions extends RocksObject {
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public BackupableDBOptions(String path) {
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super();
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newBackupableDBOptions(path);
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}
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/**
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* Returns the path to the BackupableDB directory.
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*
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* @return the path to the BackupableDB directory.
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*/
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public String backupDir() {
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assert(isInitialized());
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return backupDir(nativeHandle_);
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}
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/**
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* Release the memory allocated for the current instance
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* in the c++ side.
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*/
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@Override protected void disposeInternal() {
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assert(isInitialized());
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disposeInternal(nativeHandle_);
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}
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private native void newBackupableDBOptions(String path);
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private native String backupDir(long handle);
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private native void disposeInternal(long handle);
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}
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