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bleve/index/store/boltdb/reader.go
Marty Schoch c7443fe52b refactored API a bit
more things can return error now
in a couple of places we had to swallow errors because they didn't
fit the existing API.  in these case and proactively in a few
others we now return error as well.

also the batch API has been updated to allow performing
set/delete internal within the batch
2014-10-31 09:40:23 -04:00

47 lines
1.2 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 boltdb
import (
"github.com/blevesearch/bleve/index/store"
"github.com/boltdb/bolt"
)
type Reader struct {
store *Store
tx *bolt.Tx
}
func newReader(store *Store) (*Reader, error) {
tx, err := store.db.Begin(false)
if err != nil {
return nil, err
}
return &Reader{
store: store,
tx: tx,
}, nil
}
func (r *Reader) Get(key []byte) ([]byte, error) {
rv := r.tx.Bucket([]byte(r.store.bucket)).Get(key)
return rv, nil
}
func (r *Reader) Iterator(key []byte) store.KVIterator {
rv := newIteratorExistingTx(r.store, r.tx)
rv.Seek(key)
return rv
}
func (r *Reader) Close() error {
return r.tx.Rollback()
}