Платформа ЦРНП "Мирокод" для разработки проектов
https://git.mirocod.ru
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45 lines
1.4 KiB
45 lines
1.4 KiB
// Copyright 2015 PingCAP, 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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// See the License for the specific language governing permissions and |
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// limitations under the License. |
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package ddl |
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import "github.com/pingcap/tidb/model" |
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// Callback is the interface supporting callback function when DDL changed. |
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type Callback interface { |
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// OnChanged is called after schema is changed. |
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OnChanged(err error) error |
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// OnJobRunBefore is called before running job. |
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OnJobRunBefore(job *model.Job) |
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// OnJobUpdated is called after the running job is updated. |
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OnJobUpdated(job *model.Job) |
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} |
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// BaseCallback implements Callback.OnChanged interface. |
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type BaseCallback struct { |
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} |
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// OnChanged implements Callback interface. |
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func (c *BaseCallback) OnChanged(err error) error { |
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return err |
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} |
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// OnJobRunBefore implements Callback.OnJobRunBefore interface. |
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func (c *BaseCallback) OnJobRunBefore(job *model.Job) { |
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// Nothing to do. |
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} |
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// OnJobUpdated implements Callback.OnJobUpdated interface. |
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func (c *BaseCallback) OnJobUpdated(job *model.Job) { |
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// Nothing to do. |
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}
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