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69 lines
1.8 KiB
69 lines
1.8 KiB
// Copyright 2019 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://wwm.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 (
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"time"
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"github.com/pingcap/tidb/infoschema"
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"github.com/pingcap/tidb/kv"
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"go.etcd.io/etcd/clientv3"
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)
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// Option represents an option to initialize the DDL module
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type Option func(*Options)
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// Options represents all the options of the DDL module needs
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type Options struct {
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EtcdCli *clientv3.Client
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Store kv.Storage
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InfoHandle *infoschema.Handle
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Hook Callback
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Lease time.Duration
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}
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// WithEtcdClient specifies the `clientv3.Client` of DDL used to request the etcd service
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func WithEtcdClient(client *clientv3.Client) Option {
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return func(options *Options) {
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options.EtcdCli = client
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}
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}
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// WithStore specifies the `kv.Storage` of DDL used to request the KV service
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func WithStore(store kv.Storage) Option {
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return func(options *Options) {
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options.Store = store
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}
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}
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// WithInfoHandle specifies the `infoschema.Handle`
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func WithInfoHandle(ih *infoschema.Handle) Option {
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return func(options *Options) {
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options.InfoHandle = ih
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}
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}
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// WithHook specifies the `Callback` of DDL used to notify the outer module when events are triggered
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func WithHook(callback Callback) Option {
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return func(options *Options) {
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options.Hook = callback
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}
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}
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// WithLease specifies the schema lease duration
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func WithLease(lease time.Duration) Option {
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return func(options *Options) {
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options.Lease = lease
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}
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}
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