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bleve/index/store/inmem/store.go
2014-08-28 15:38:57 -04:00

82 lines
1.8 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package inmem
import (
"github.com/blevesearch/bleve/index/store"
"github.com/blevesearch/bleve/registry"
"github.com/ryszard/goskiplist/skiplist"
)
const Name = "mem"
type InMemStore struct {
list *skiplist.SkipList
}
func Open() (*InMemStore, error) {
rv := InMemStore{
list: skiplist.NewStringMap(),
}
return &rv, nil
}
func MustOpen() *InMemStore {
rv := InMemStore{
list: skiplist.NewStringMap(),
}
return &rv
}
func (i *InMemStore) Get(key []byte) ([]byte, error) {
val, ok := i.list.Get(string(key))
if ok {
return []byte(val.(string)), nil
}
return nil, nil
}
func (i *InMemStore) Set(key, val []byte) error {
i.list.Set(string(key), string(val))
return nil
}
func (i *InMemStore) Delete(key []byte) error {
i.list.Delete(string(key))
return nil
}
func (i *InMemStore) Commit() error {
return nil
}
func (i *InMemStore) Close() error {
return nil
}
func (i *InMemStore) Iterator(key []byte) store.KVIterator {
rv := newInMemIterator(i)
rv.Seek(key)
return rv
}
func (i *InMemStore) NewBatch() store.KVBatch {
return newInMemBatch(i)
}
func StoreConstructor(config map[string]interface{}) (store.KVStore, error) {
return Open()
}
func init() {
registry.RegisterKVStore(Name, StoreConstructor)
}