2014-07-30 18:30:38 +02:00
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// Copyright (c) 2014 Couchbase, Inc.
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
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// except in compliance with the License. You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed under the
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// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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// either express or implied. See the License for the specific language governing permissions
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// and limitations under the License.
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2014-05-09 22:37:04 +02:00
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package leveldb
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import (
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"github.com/jmhodges/levigo"
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)
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type LevelDBIterator struct {
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store *LevelDBStore
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iterator *levigo.Iterator
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}
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func newLevelDBIterator(store *LevelDBStore) *LevelDBIterator {
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rv := LevelDBIterator{
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store: store,
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iterator: store.db.NewIterator(defaultReadOptions()),
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}
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return &rv
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}
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func (ldi *LevelDBIterator) SeekFirst() {
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ldi.iterator.SeekToFirst()
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}
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func (ldi *LevelDBIterator) Seek(key []byte) {
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ldi.iterator.Seek(key)
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}
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func (ldi *LevelDBIterator) Next() {
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ldi.iterator.Next()
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}
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func (ldi *LevelDBIterator) Current() ([]byte, []byte, bool) {
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if ldi.Valid() {
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return ldi.Key(), ldi.Value(), true
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}
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return nil, nil, false
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}
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func (ldi *LevelDBIterator) Key() []byte {
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return ldi.iterator.Key()
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}
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func (ldi *LevelDBIterator) Value() []byte {
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return ldi.iterator.Value()
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}
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func (ldi *LevelDBIterator) Valid() bool {
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return ldi.iterator.Valid()
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}
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func (ldi *LevelDBIterator) Close() {
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ldi.iterator.Close()
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}
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