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writer.go
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/
writer.go
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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"
)
type Writer struct {
store *Store
}
func newWriter(store *Store) *Writer {
store.writer.Lock()
return &Writer{
store: store,
}
}
func (w *Writer) Set(key, val []byte) error {
return w.store.setlocked(key, val)
}
func (w *Writer) Delete(key []byte) error {
return w.store.deletelocked(key)
}
func (w *Writer) NewBatch() store.KVBatch {
return newBatchAlreadyLocked(w.store)
}
func (w *Writer) Close() error {
w.store.writer.Unlock()
return nil
}
// these two methods can safely read using the regular
// methods without a read transaction, because we know
// that no one else is writing but us
func (w *Writer) Get(key []byte) ([]byte, error) {
return w.store.get(key)
}
func (w *Writer) Iterator(key []byte) store.KVIterator {
return w.store.iterator(key)
}