Hi sunkai,

I have some questions about this API:
1. What's the returning of `build()`?
2. What if the Job has multiple ElasticJob annotations?
3. Could we consider move the RegCenter parameter to `newBuilder` or
somewhere like require-args constructor? I think the RegCenter is a
necessary arrangement.

I think it would be helpful if you can provide a document to describe
the detail about your API design.

------------------

Sincerely,
Weijie Wu (TeslaCN)
Apache ShardingSphere

sk c <[email protected]> 于2021年8月13日周五 下午4:32写道:
>
> Hello Weijie,
>
> Yes, passing an instance is batter.
>
> ```
> ScheduleAnnotationJobBootstrap.newBuilder(new
> SimpleTestJob()).setRegCenter(regCenter).addExtraConfigurations(tracingConfig).build().schedule();
> ```
>
> it looks good.
>
> ------------------
> Sincerely,
> SunKai  Cai (skai)
>
> 吴伟杰 <[email protected]> 于2021年8月13日周五 下午3:18写道:
>
> > Hi sunkai
> >
> > ```
> >
> > ScheduleAnnotationJobBootstrap.newBuilder(SimpleTestJob.class).setRegCenter(regCenter).addExtraConfigurations(tracingConfig).build().schedule();
> > ```
> > The API require a class means it force developer to provide a no-args
> > constructor. How about passing an instance?
> >
> >
> > ------------------
> >
> > Sincerely,
> > Weijie Wu (TeslaCN)
> > Apache ShardingSphere
> >
> > sk c <[email protected]> 于2021年8月12日周四 下午12:37写道:
> > >
> > > Hello Weijie,
> > >
> > > Annotation to use it without Spring, maybe we can do that:
> > >
> > > ```
> > > @ElasticScheduled(
> > >         cron = "0/5 * * * * ?",
> > >         jobName = "SimpleTestJob",
> > >         shardingTotalCount = 3,
> > >         shardingItemParameters = "0=Beijing,1=Shanghai,2=Guangzhou",
> > >         props = {
> > >                 @ElasticJobProp(key = "print.title", value = "test
> > title"),
> > >                 @ElasticJobProp(key = "print.content", value = "test
> > > content")
> > >         }
> > > )
> > > public class SimpleTestJob implements CustomJob {
> > >
> > >     @Override
> > >     public void execute(final ShardingContext shardingContext) {
> > >     }
> > >
> > > }
> > > ```
> > >
> > > ```
> > >
> > > public final class JavaMain {
> > >     .....
> > >     public static void main(final String[] args) throws IOException {
> > >         CoordinatorRegistryCenter regCenter = setUpRegistryCenter();
> > >         TracingConfiguration<DataSource> tracingConfig = new
> > > TracingConfiguration<>("RDB", setUpEventTraceDataSource());
> > >
> > >
> > ScheduleAnnotationJobBootstrap.newBuilder(SimpleTestJob.class).setRegCenter(regCenter).addExtraConfigurations(tracingConfig).build().schedule();
> > >     }
> > >     .....
> > > }
> > >
> > > ```
> > >
> > >
> > > ------------------
> > > Sincerely,
> > > SunKai  Cai (skai)
> > >
> > > 吴伟杰 <[email protected]> 于2021年8月12日周四 上午11:07写道:
> > >
> > > > Hi sunkai,
> > > >
> > > > If we define the annotations in API module, we also need to define how
> > > > to use it without Spring.
> > > >
> > > > ------------------
> > > >
> > > > Sincerely,
> > > > Weijie Wu (TeslaCN)
> > > > Apache ShardingSphere
> > > >
> > > > sk c <[email protected]> 于2021年8月11日周三 下午7:53写道:
> > > > >
> > > > > Hello Weijie,
> > > > >
> > > > > Thank you,  good ideas.  Maybe we can do that:
> > > > >
> > > > >
> > > > > 1.  Move the `@ElasticScheduled` annotation to `api/annotation`.  We
> > can
> > > > > have the same annotation , and different annotation processor without
> > > > > Spring.
> > > > >
> > > > > 2.  Yes, this is important. I have a idea like that:
> > > > >
> > > > > Set Scheduled
> > > > > ```
> > > > > package
> > > > >
> > > >
> > org.apache.shardingsphere.elasticjob.lite.spring.core.annotation.job.impl;
> > > > > @ElasticScheduled(
> > > > >         cron = "0/5 * * * * ?",
> > > > >         jobName = SimpleTestJobFirst
> > > > >         shardingTotalCount = 3,
> > > > >         shardingItemParameters = "0=Beijing,1=Shanghai,2=Guangzhou",
> > > > >         extraConfigurations = {"SimpleTracingConfiguration"}
> > > > > )
> > > > > public class SimpleTestJob implements CustomJob {
> > > > >
> > > > >     @Override
> > > > >     public void execute(final ShardingContext shardingContext) {
> > > > >     }
> > > > >
> > > > > }
> > > > > ```
> > > > >
> > > > > Set Configurable
> > > > >
> > > > > ```
> > > > > //spring example
> > > > > @Configurable
> > > > > @EnableElastic(scanBasePackages =
> > > > >
> > > >
> > "org.apache.shardingsphere.elasticjob.lite.spring.core.annotation.job.impl")
> > > > > public class ElasticConfig {
> > > > >
> > > > >     @Bean
> > > > >     public DataSource dataSource() {
> > > > >         BasicDataSource dataSource = new BasicDataSource();
> > > > >         dataSource.setDriverClassName("org.h2.Driver");
> > > > >         dataSource.setUrl("jdbc:h2:mem:job_event_storage");
> > > > >         dataSource.setUsername("sa");
> > > > >         dataSource.setPassword("");
> > > > >     }
> > > > >
> > > > >     @Bean("SimpleTracingConfiguration")
> > > > >     public TracingConfiguration<DataSource> myTracingConfiguration()
> > {
> > > > >         return new TracingConfiguration<>("RDB", dataSource());
> > > > >     }
> > > > > }
> > > > > ```
> > > > > or
> > > > >
> > > > > ```
> > > > > //spring boot example
> > > > > @Configurable
> > > > > @EnableElastic(scanBasePackages =
> > > > >
> > > >
> > "org.apache.shardingsphere.elasticjob.lite.spring.core.annotation.job.impl")
> > > > > public class ElasticConfig {
> > > > >
> > > > >     @ConditionalOnBean(DataSource.class)
> > > > >     @Bean("SimpleTracingConfiguration")
> > > > >     public TracingConfiguration<DataSource>
> > myTracingConfiguration(final
> > > > > DataSource dataSource) {
> > > > >         return new TracingConfiguration<>("RDB", dataSource);
> > > > >     }
> > > > > }
> > > > > ```
> > > > >
> > > > > 3.  Of course
> > > > >
> > > > > ------------------
> > > > > Sincerely,
> > > > > SunKai  Cai (skai)
> > > > >
> > > > > 吴伟杰 <[email protected]> 于2021年8月11日周三 下午6:38写道:
> > > > >
> > > > > > Hi Sunkai,
> > > > > >
> > > > > > I have some ideas about your proposal:
> > > > > > 1. Could we consider using the annotation without Spring?
> > > > > > 2. Could we configure the jobs by annotations only? How to
> > configure
> > > > > > the JobExtraConfiguration like TracingConfiguration by annotations?
> > > > > > 3. Support using YAML to configure jobs without Spring. This can
> > refer
> > > > > > to how ShardingSphere does.
> > > > > >
> > > > > > ------------------
> > > > > >
> > > > > > Sincerely,
> > > > > > Weijie Wu (TeslaCN)
> > > > > > Apache ShardingSphere
> > > > > >
> > > > > > sk c <[email protected]> 于2021年8月10日周二 下午3:43写道:
> > > > > > >
> > > > > > > Hi everyone,
> > > > > > >
> > > > > > > I prefer to discuss the annotation of ElasticJob  plan.
> > > > > > >
> > > > > > > example:
> > > > > > >
> > > > > > > ```
> > > > > > > @ElasticScheduled(
> > > > > > >         cron = "0/5 * * * * ?",
> > > > > > >         jobName = "SimpleTestJobSecond",
> > > > > > >         shardingTotalCount = 3,
> > > > > > >         shardingItemParameters =
> > "0=Beijing,1=Shanghai,2=Guangzhou",
> > > > > > >         jobListenerTypes = {"NOOP", "LOG"},
> > > > > > >         props = {
> > > > > > >                 @ElasticJobProp(key = "print.title", value =
> > "test
> > > > > > title"),
> > > > > > >                 @ElasticJobProp(key = "print.content", value =
> > "test
> > > > > > > content")
> > > > > > >         }
> > > > > > > )
> > > > > > > public class SimpleTestJob implements CustomJob {
> > > > > > >
> > > > > > >     @Override
> > > > > > >     public void execute(final ShardingContext shardingContext) {
> > > > > > >     }
> > > > > > >
> > > > > > > }
> > > > > > > ```
> > > > > > >
> > > > > > > ```
> > > > > > > @Configuration
> > > > > > > @EnableElastic(scanBasePackages =
> > > > > > > "org.apache.shardingsphere.elasticjob.lite.example.job.simple")
> > > > > > > public class ElasticConfig {
> > > > > > >
> > > > > > > }
> > > > > > > ```
> > > > > > >
> > > > > > > we can look at it on
> > > > > > > https://github.com/apache/shardingsphere-elasticjob/pull/1954
> > > > > > >
> > > > > > > I am going to work it soon. Please remind me if you have a
> > > > suggestion.
> > > > > > >
> > > > > > >
> > > > > > > ------------------
> > > > > > > Sincerely,
> > > > > > > SunKai  Cai (skai)
> > > > > >
> > > >
> >

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