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// Copyright (c) 2016 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 moss
import (
"github.com/couchbase/moss"
)
type Iterator struct {
store *Store
ss moss.Snapshot
iter moss.Iterator
start []byte
end []byte
k []byte
v []byte
err error
}
func (x *Iterator) Seek(seekToKey []byte) {
_ = x.iter.SeekTo(seekToKey)
x.k, x.v, x.err = x.iter.Current()
}
func (x *Iterator) Next() {
_ = x.iter.Next()
x.k, x.v, x.err = x.iter.Current()
}
func (x *Iterator) Current() ([]byte, []byte, bool) {
return x.k, x.v, x.err == nil
}
func (x *Iterator) Key() []byte {
if x.err != nil {
return nil
}
return x.k
}
func (x *Iterator) Value() []byte {
if x.err != nil {
return nil
}
return x.v
}
func (x *Iterator) Valid() bool {
return x.err == nil
}
func (x *Iterator) Close() error {
var err error
x.ss = nil
if x.iter != nil {
err = x.iter.Close()
x.iter = nil
}
x.k = nil
x.v = nil
x.err = moss.ErrIteratorDone
return err
}
func (x *Iterator) current() {
x.k, x.v, x.err = x.iter.Current()
}
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