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bleve/index/store/forestdb/reader.go
2014-11-25 21:52:35 -05:00

52 lines
1.3 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.
// +build forestdb
package forestdb
import (
"github.com/blevesearch/bleve/index/store"
"github.com/couchbaselabs/goforestdb"
)
type Reader struct {
store *Store
snapshot *forestdb.KVStore
}
func newReader(store *Store) (*Reader, error) {
snapshot, err := store.newSnapshot()
if err != nil {
return nil, err
}
return &Reader{
store: store,
snapshot: snapshot,
}, nil
}
func (r *Reader) Get(key []byte) ([]byte, error) {
res, err := r.snapshot.GetKV(key)
if err != nil && err != forestdb.RESULT_KEY_NOT_FOUND {
return nil, err
}
return res, nil
}
func (r *Reader) Iterator(key []byte) store.KVIterator {
rv := newIteratorWithSnapshot(r.store, r.snapshot)
rv.Seek(key)
return rv
}
func (r *Reader) Close() error {
return r.snapshot.Close()
}