mirror of https://github.com/facebook/rocksdb.git
61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
// Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
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#ifndef DBWRAPPER_H
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#define DBWRAPPER_H
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#include <map>
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#include <node.h>
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#include "rocksdb/db.h"
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#include "rocksdb/slice.h"
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#include "rocksdb/options.h"
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using namespace v8;
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// Used to encapsulate a particular instance of an opened database.
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//
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// This object should not be used directly in C++; it exists solely to provide
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// a mapping from a JavaScript object to a C++ code that can use the RocksDB
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// API.
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class DBWrapper : public node::ObjectWrap {
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public:
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static void Init(Handle<Object> exports);
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private:
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explicit DBWrapper();
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~DBWrapper();
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// Helper methods
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static bool HasFamilyNamed(std::string& name, DBWrapper* db);
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static bool AddToBatch(ROCKSDB_NAMESPACE::WriteBatch& batch, bool del,
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Handle<Array> array);
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static bool AddToBatch(ROCKSDB_NAMESPACE::WriteBatch& batch, bool del,
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Handle<Array> array, DBWrapper* db_wrapper,
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std::string cf);
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static Handle<Value> CompactRangeDefault(const v8::Arguments& args);
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static Handle<Value> CompactColumnFamily(const Arguments& args);
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static Handle<Value> CompactOptions(const Arguments& args);
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static Handle<Value> CompactAll(const Arguments& args);
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// C++ mappings of API methods
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static Persistent<v8::Function> constructor;
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static Handle<Value> Open(const Arguments& args);
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static Handle<Value> New(const Arguments& args);
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static Handle<Value> Get(const Arguments& args);
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static Handle<Value> Put(const Arguments& args);
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static Handle<Value> Delete(const Arguments& args);
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static Handle<Value> Dump(const Arguments& args);
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static Handle<Value> WriteBatch(const Arguments& args);
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static Handle<Value> CreateColumnFamily(const Arguments& args);
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static Handle<Value> CompactRange(const Arguments& args);
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static Handle<Value> Close(const Arguments& args);
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// Internal fields
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ROCKSDB_NAMESPACE::Options options_;
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ROCKSDB_NAMESPACE::Status status_;
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ROCKSDB_NAMESPACE::DB* db_;
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std::unordered_map<std::string, ROCKSDB_NAMESPACE::ColumnFamilyHandle*>
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columnFamilies_;
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};
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#endif
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