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gitea/vendor/github.com/blevesearch/bleve/index/store/batch.go
2017-01-25 10:43:02 +08:00

63 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 store
type op struct {
K []byte
V []byte
}
type EmulatedBatch struct {
Ops []*op
Merger *EmulatedMerge
}
func NewEmulatedBatch(mo MergeOperator) *EmulatedBatch {
return &EmulatedBatch{
Ops: make([]*op, 0, 1000),
Merger: NewEmulatedMerge(mo),
}
}
func (b *EmulatedBatch) Set(key, val []byte) {
ck := make([]byte, len(key))
copy(ck, key)
cv := make([]byte, len(val))
copy(cv, val)
b.Ops = append(b.Ops, &op{ck, cv})
}
func (b *EmulatedBatch) Delete(key []byte) {
ck := make([]byte, len(key))
copy(ck, key)
b.Ops = append(b.Ops, &op{ck, nil})
}
func (b *EmulatedBatch) Merge(key, val []byte) {
ck := make([]byte, len(key))
copy(ck, key)
cv := make([]byte, len(val))
copy(cv, val)
b.Merger.Merge(key, val)
}
func (b *EmulatedBatch) Reset() {
b.Ops = b.Ops[:0]
}
func (b *EmulatedBatch) Close() error {
return nil
}