leveldb::ModelDB Class Reference

Inheritance diagram for leveldb::ModelDB:

Collaboration diagram for leveldb::ModelDB:

Classes
class	ModelIter
class	ModelSnapshot

Public Member Functions
	ModelDB (const Options &options)
	~ModelDB ()
virtual Status	Put (const WriteOptions &o, const Slice &k, const Slice &v)
virtual Status	Delete (const WriteOptions &o, const Slice &key)
virtual Status	Get (const ReadOptions &options, const Slice &key, std::string *value)
virtual Iterator *	NewIterator (const ReadOptions &options)
virtual const Snapshot *	GetSnapshot ()
virtual void	ReleaseSnapshot (const Snapshot *snapshot)
virtual Status	Write (const WriteOptions &options, WriteBatch *batch)
virtual bool	GetProperty (const Slice &property, std::string *value)
virtual void	GetApproximateSizes (const Range *r, int n, uint64_t *sizes)
virtual void	CompactRange (const Slice *start, const Slice *end)
Public Member Functions inherited from leveldb::DB
	DB ()
virtual	~DB ()

Private Attributes
const Options	options_
KVMap	map_

Additional Inherited Members
Static Public Member Functions inherited from leveldb::DB
static Status	Open (const Options &options, const std::string &name, DB **dbptr)

Detailed Description

Definition at line 1860 of file db_test.cc.

Constructor & Destructor Documentation

ModelDB()

leveldb::ModelDB::ModelDB ( const Options &  options )

inlineexplicit

Definition at line 1867 of file db_test.cc.

: options_(options) { }

~ModelDB()

leveldb::ModelDB::~ModelDB ( )

inline

Definition at line 1868 of file db_test.cc.

{ }

Member Function Documentation

CompactRange()

virtual void leveldb::ModelDB::CompactRange ( const Slice *  start, const Slice *  end  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1924 of file db_test.cc.

                                                                  {
  }

Delete()

virtual Status leveldb::ModelDB::Delete ( const WriteOptions &  o, const Slice &  key  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1872 of file db_test.cc.

                                                                 {
    return DB::Delete(o, key);
  }

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Get()

virtual Status leveldb::ModelDB::Get ( const ReadOptions &  options, const Slice &  key, std::string *  value  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1875 of file db_test.cc.

                                                         {
    assert(false);      // Not implemented
    return Status::NotFound(key);
  }

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GetApproximateSizes()

virtual void leveldb::ModelDB::GetApproximateSizes ( const Range *  r, int  n, uint64_t *  sizes  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1919 of file db_test.cc.

                                                                           {
    for (int i = 0; i < n; i++) {
      sizes[i] = 0;
    }
  }

GetProperty()

virtual bool leveldb::ModelDB::GetProperty ( const Slice &  property, std::string *  value  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1916 of file db_test.cc.

                                                                    {
    return false;
  }

GetSnapshot()

virtual const Snapshot* leveldb::ModelDB::GetSnapshot ( )

inlinevirtual

Implements leveldb::DB.

Definition at line 1891 of file db_test.cc.

                                        {
    ModelSnapshot* snapshot = new ModelSnapshot;
    snapshot->map_ = map_;
    return snapshot;
  }

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NewIterator()

virtual Iterator* leveldb::ModelDB::NewIterator ( const ReadOptions &  options )

inlinevirtual

Implements leveldb::DB.

Definition at line 1880 of file db_test.cc.

                                                            {
    if (options.snapshot == NULL) {
      KVMap* saved = new KVMap;
      *saved = map_;
      return new ModelIter(saved, true);
    } else {
      const KVMap* snapshot_state =
          &(reinterpret_cast<const ModelSnapshot*>(options.snapshot)->map_);
      return new ModelIter(snapshot_state, false);
    }
  }

Put()

virtual Status leveldb::ModelDB::Put ( const WriteOptions &  o, const Slice &  k, const Slice &  v  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1869 of file db_test.cc.

                                                                            {
    return DB::Put(o, k, v);
  }

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ReleaseSnapshot()

virtual void leveldb::ModelDB::ReleaseSnapshot ( const Snapshot *  snapshot )

inlinevirtual

Implements leveldb::DB.

Definition at line 1897 of file db_test.cc.

                                                         {
    delete reinterpret_cast<const ModelSnapshot*>(snapshot);
  }

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Write()

virtual Status leveldb::ModelDB::Write ( const WriteOptions &  options, WriteBatch *  batch  )

inlinevirtual

Implements leveldb::DB.

Definition at line 1900 of file db_test.cc.

                                                                       {
    class Handler : public WriteBatch::Handler {
     public:
      KVMap* map_;
      virtual void Put(const Slice& key, const Slice& value) {
        (*map_)[key.ToString()] = value.ToString();
      }
      virtual void Delete(const Slice& key) {
        map_->erase(key.ToString());
      }
    };
    Handler handler;
    handler.map_ = &map_;
    return batch->Iterate(&handler);
  }

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Member Data Documentation

map_

KVMap leveldb::ModelDB::map_

private

Definition at line 1959 of file db_test.cc.

options_

const Options leveldb::ModelDB::options_

private

Definition at line 1958 of file db_test.cc.

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The documentation for this class was generated from the following file:

• db/db_test.cc