prometheus/storage/raw/leveldb/iterator.go

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// Copyright 2013 Prometheus Team
// 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 leveldb
import (
"code.google.com/p/goprotobuf/proto"
)
// TODO: Evaluate whether to use coding.Encoder for the key and values instead
// raw bytes for consistency reasons.
type Iterator interface {
Error() error
Valid() bool
SeekToFirst() bool
SeekToLast() bool
Seek(proto.Message) bool
Next() bool
Previous() bool
Key(proto.Message) error
Value(proto.Message) error
Close() error
rawKey() []byte
rawValue() []byte
}