84b72e25d2
Remove the need to query a particular KV level, and instead use slightly different encoded keys, and use prefix based iteration. This means we can use different KV stores to give the same functionality, without needing to use hierarchical KV stores.
68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
// Copyright © 2016 Abcum Ltd
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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 keys
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import (
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"time"
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)
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// Patch ...
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type Patch struct {
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KV string
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NS string
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DB string
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TB string
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ID interface{}
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AT time.Time
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}
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// init initialises the key
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func (k *Patch) init() *Patch {
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if k.AT.IsZero() {
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k.AT = time.Now()
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}
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return k
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}
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// Copy creates a copy of the key
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func (k *Patch) Copy() *Patch {
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return &Patch{
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KV: k.KV,
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NS: k.NS,
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DB: k.DB,
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TB: k.TB,
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ID: k.ID,
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AT: k.AT,
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}
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}
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// Encode encodes the key into binary
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func (k *Patch) Encode() []byte {
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k.init()
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return encode(k.KV, "*", k.NS, "*", k.DB, "*", k.TB, "~", k.ID, k.AT)
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}
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// Decode decodes the key from binary
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func (k *Patch) Decode(data []byte) {
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k.init()
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var __ string
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decode(data, &k.KV, &__, &k.NS, &__, &k.DB, &__, &k.TB, &__, &k.ID, &k.AT)
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}
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// String returns a string representation of the key
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func (k *Patch) String() string {
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k.init()
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return output(k.KV, "*", k.NS, "*", k.DB, "*", k.TB, "~", k.ID, k.AT.Format(time.RFC3339Nano))
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}
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