119 lines
2.5 KiB
Go
119 lines
2.5 KiB
Go
// Copyright (c) 2014 Couchbase, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package null
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import (
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"github.com/blevesearch/bleve/index/store"
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"github.com/blevesearch/bleve/registry"
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)
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const Name = "null"
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type Store struct{}
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func New(mo store.MergeOperator, config map[string]interface{}) (store.KVStore, error) {
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return &Store{}, nil
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}
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func (i *Store) Close() error {
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return nil
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}
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func (i *Store) Reader() (store.KVReader, error) {
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return &reader{}, nil
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}
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func (i *Store) Writer() (store.KVWriter, error) {
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return &writer{}, nil
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}
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type reader struct{}
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func (r *reader) Get(key []byte) ([]byte, error) {
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return nil, nil
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}
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func (r *reader) MultiGet(keys [][]byte) ([][]byte, error) {
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return make([][]byte, len(keys)), nil
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}
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func (r *reader) PrefixIterator(prefix []byte) store.KVIterator {
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return &iterator{}
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}
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func (r *reader) RangeIterator(start, end []byte) store.KVIterator {
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return &iterator{}
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}
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func (r *reader) Close() error {
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return nil
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}
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type iterator struct{}
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func (i *iterator) SeekFirst() {}
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func (i *iterator) Seek(k []byte) {}
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func (i *iterator) Next() {}
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func (i *iterator) Current() ([]byte, []byte, bool) {
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return nil, nil, false
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}
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func (i *iterator) Key() []byte {
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return nil
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}
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func (i *iterator) Value() []byte {
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return nil
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}
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func (i *iterator) Valid() bool {
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return false
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}
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func (i *iterator) Close() error {
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return nil
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}
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type batch struct{}
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func (i *batch) Set(key, val []byte) {}
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func (i *batch) Delete(key []byte) {}
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func (i *batch) Merge(key, val []byte) {}
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func (i *batch) Reset() {}
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func (i *batch) Close() error { return nil }
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type writer struct{}
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func (w *writer) NewBatch() store.KVBatch {
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return &batch{}
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}
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func (w *writer) NewBatchEx(options store.KVBatchOptions) ([]byte, store.KVBatch, error) {
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return make([]byte, options.TotalBytes), w.NewBatch(), nil
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}
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func (w *writer) ExecuteBatch(store.KVBatch) error {
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return nil
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}
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func (w *writer) Close() error {
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return nil
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}
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func init() {
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registry.RegisterKVStore(Name, New)
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}
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