rocksdb/java/rocksjni/cassandra_value_operator.cc
Pengchao Wang 534c255c7a Cassandra compaction filter for purge expired columns and rows
Summary:
Major changes in this PR:
* Implement CassandraCompactionFilter to remove expired columns and rows (if all column expired)
* Move cassandra related code from utilities/merge_operators/cassandra to utilities/cassandra/*
* Switch to use shared_ptr<> from uniqu_ptr for Column membership management in RowValue. Since columns do have multiple owners in Merge and GC process, use shared_ptr helps make RowValue immutable.
* Rename cassandra_merge_test to cassandra_functional_test and add two TTL compaction related tests there.
Closes https://github.com/facebook/rocksdb/pull/2588

Differential Revision: D5430010

Pulled By: wpc

fbshipit-source-id: 9566c21e06de17491d486a68c70f52d501f27687
2017-07-21 14:57:44 -07:00

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1.7 KiB
C++

// Copyright (c) 2017-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 source code is also licensed under the GPLv2 license found in the
// COPYING file in the root directory of this source tree.
#include <stdio.h>
#include <stdlib.h>
#include <jni.h>
#include <string>
#include <memory>
#include "include/org_rocksdb_CassandraValueMergeOperator.h"
#include "rocksjni/portal.h"
#include "rocksdb/db.h"
#include "rocksdb/options.h"
#include "rocksdb/statistics.h"
#include "rocksdb/memtablerep.h"
#include "rocksdb/table.h"
#include "rocksdb/slice_transform.h"
#include "rocksdb/merge_operator.h"
#include "utilities/cassandra/merge_operator.h"
/*
* Class: org_rocksdb_CassandraValueMergeOperator
* Method: newSharedCassandraValueMergeOperator
* Signature: ()J
*/
jlong Java_org_rocksdb_CassandraValueMergeOperator_newSharedCassandraValueMergeOperator
(JNIEnv* env, jclass jclazz) {
auto* sptr_string_append_op = new std::shared_ptr<rocksdb::MergeOperator>(
rocksdb::CassandraValueMergeOperator::CreateSharedInstance());
return reinterpret_cast<jlong>(sptr_string_append_op);
}
/*
* Class: org_rocksdb_CassandraValueMergeOperator
* Method: disposeInternal
* Signature: (J)V
*/
void Java_org_rocksdb_CassandraValueMergeOperator_disposeInternal(
JNIEnv* env, jobject jobj, jlong jhandle) {
auto* sptr_string_append_op =
reinterpret_cast<std::shared_ptr<rocksdb::MergeOperator>* >(jhandle);
delete sptr_string_append_op; // delete std::shared_ptr
}