github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/libraries/doltcore/dbfactory/mem.go (about)

     1  // Copyright 2019 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package dbfactory
    16  
    17  import (
    18  	"context"
    19  	"net/url"
    20  
    21  	"github.com/dolthub/dolt/go/store/chunks"
    22  	"github.com/dolthub/dolt/go/store/datas"
    23  	"github.com/dolthub/dolt/go/store/types"
    24  )
    25  
    26  // MemFactory is a DBFactory implementation for creating in memory backed databases
    27  type MemFactory struct {
    28  }
    29  
    30  // CreateDB creates an in memory backed database
    31  func (fact MemFactory) CreateDB(ctx context.Context, nbf *types.NomsBinFormat, urlObj *url.URL, params map[string]string) (datas.Database, error) {
    32  	var db datas.Database
    33  	storage := &chunks.MemoryStorage{}
    34  	db = datas.NewDatabase(storage.NewViewWithDefaultFormat())
    35  
    36  	return db, nil
    37  }