rocksdb/java/rocksjni/native_comparator_wrapper_test.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).

#include <jni.h>
#include <string>

#include "rocksdb/comparator.h"
#include "rocksdb/slice.h"

#include "include/org_rocksdb_NativeComparatorWrapperTest_NativeStringComparatorWrapper.h"

namespace rocksdb {

class NativeComparatorWrapperTestStringComparator
    : public Comparator {

  const char* Name() const {
    return "NativeComparatorWrapperTestStringComparator";
  }

  int Compare(
      const Slice& a, const Slice& b) const {
    return a.ToString().compare(b.ToString());
  }

  void FindShortestSeparator(
      std::string* start, const Slice& limit) const {
    return;
  }

  void FindShortSuccessor(
      std::string* key) const {
    return;
  }
};
}  // end of rocksdb namespace

/*
 * Class:     org_rocksdb_NativeComparatorWrapperTest_NativeStringComparatorWrapper
 * Method:    newStringComparator
 * Signature: ()J
 */
jlong Java_org_rocksdb_NativeComparatorWrapperTest_00024NativeStringComparatorWrapper_newStringComparator(
    JNIEnv* env , jobject jobj) {
  auto* comparator =
      new rocksdb::NativeComparatorWrapperTestStringComparator();
  return reinterpret_cast<jlong>(comparator);
}