bb38cd03a9
Summary: Now that RocksDB supports conditional merging during point lookups (introduced in #2923), Cassandra value merge operator can be updated to pass in a limit. The limit needs to be passed in from the Cassandra code. Closes https://github.com/facebook/rocksdb/pull/2947 Differential Revision: D5938454 Pulled By: sagar0 fbshipit-source-id: d64a72d53170d8cf202b53bd648475c3952f7d7f
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
// Copyright (c) 2017-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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#include <stdio.h>
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#include <stdlib.h>
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#include <jni.h>
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#include <string>
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#include <memory>
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#include "include/org_rocksdb_CassandraValueMergeOperator.h"
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#include "rocksjni/portal.h"
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#include "rocksdb/db.h"
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#include "rocksdb/options.h"
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#include "rocksdb/statistics.h"
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#include "rocksdb/memtablerep.h"
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#include "rocksdb/table.h"
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#include "rocksdb/slice_transform.h"
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#include "rocksdb/merge_operator.h"
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#include "utilities/cassandra/merge_operator.h"
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/*
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* Class: org_rocksdb_CassandraValueMergeOperator
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* Method: newSharedCassandraValueMergeOperator
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* Signature: (II)J
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*/
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jlong Java_org_rocksdb_CassandraValueMergeOperator_newSharedCassandraValueMergeOperator(
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JNIEnv* env, jclass jclazz, jint gcGracePeriodInSeconds,
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jint operands_limit) {
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auto* op = new std::shared_ptr<rocksdb::MergeOperator>(
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new rocksdb::cassandra::CassandraValueMergeOperator(
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gcGracePeriodInSeconds, operands_limit));
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return reinterpret_cast<jlong>(op);
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}
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/*
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* Class: org_rocksdb_CassandraValueMergeOperator
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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_CassandraValueMergeOperator_disposeInternal(
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JNIEnv* env, jobject jobj, jlong jhandle) {
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auto* op =
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reinterpret_cast<std::shared_ptr<rocksdb::MergeOperator>*>(jhandle);
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delete op;
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}
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