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// 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 boltdb
import (
"github.com/blevesearch/bleve/index/store"
"github.com/boltdb/bolt"
)
type Reader struct {
store *Store
tx *bolt.Tx
bucket *bolt.Bucket
}
func (r *Reader) Get(key []byte) ([]byte, error) {
var rv []byte
v := r.bucket.Get(key)
if v != nil {
rv = make([]byte, len(v))
copy(rv, v)
}
return rv, nil
}
func (r *Reader) MultiGet(keys [][]byte) ([][]byte, error) {
return store.MultiGet(r, keys)
}
func (r *Reader) PrefixIterator(prefix []byte) store.KVIterator {
cursor := r.bucket.Cursor()
rv := &Iterator{
store: r.store,
tx: r.tx,
cursor: cursor,
prefix: prefix,
}
rv.Seek(prefix)
return rv
}
func (r *Reader) RangeIterator(start, end []byte) store.KVIterator {
cursor := r.bucket.Cursor()
rv := &Iterator{
store: r.store,
tx: r.tx,
cursor: cursor,
start: start,
end: end,
}
rv.Seek(start)
return rv
}
func (r *Reader) Close() error {
return r.tx.Rollback()
}
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