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bleve/index/store/boltdb/batch.go
2014-08-24 18:37:56 +10:00

64 lines
1.4 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/boltdb/bolt"
)
type op struct {
k []byte
v []byte
}
type BoltDBBatch struct {
store *BoltDBStore
ops []op
}
func newBoltDBBatch(store *BoltDBStore) *BoltDBBatch {
rv := BoltDBBatch{
store: store,
ops: make([]op, 0),
}
return &rv
}
func (i *BoltDBBatch) Set(key, val []byte) {
i.ops = append(i.ops, op{key, val})
}
func (i *BoltDBBatch) Delete(key []byte) {
i.ops = append(i.ops, op{key, nil})
}
func (i *BoltDBBatch) Execute() error {
return i.store.db.Update(func(tx *bolt.Tx) error {
b := tx.Bucket([]byte(i.store.bucket))
for _, o := range i.ops {
if o.v == nil {
if err := b.Delete(o.k); err != nil {
return err
}
} else {
if err := b.Put(o.k, o.v); err != nil {
return err
}
}
}
return nil
})
}
func (i *BoltDBBatch) Close() error {
return nil
}