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README.src.md

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Beverley Talbott 2013-06-27 09:06:15 -07:00
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@ -66,7 +66,7 @@ A common paradigm in batch processing is to ingest data, transform it, and then
`PersonItemProcessor` implements Spring Batch's `ItemProcessor` interface. This makes it easy to wire the code into a batch job that you define further down in this guide. According to the interface, you receive an incoming `Person` object, after which you transform it to an upper-cased `Person`.
> Note: There is no requirement that the input and output types be the same. In fact, after one source of data is read, sometimes the application's data flow needs a different data type.
> **Note:** There is no requirement that the input and output types be the same. In fact, after one source of data is read, sometimes the application's data flow needs a different data type.
Put together a batch job
----------------------------
@ -75,7 +75,7 @@ Now you put together the actual batch job. Spring Batch provides many utility cl
{!include:complete/src/main/java/hello/BatchConfiguration.java}
For starters, the `@EnableBatchProcessing` annotation adds many critical beans that support jobs and save you a lot of leg work.
For starters, the `@EnableBatchProcessing` annotation adds many critical beans that support jobs and saves you a lot of leg work.
Break it down:
@ -96,7 +96,7 @@ In this job definition, you need an incrementer because jobs use a database to m
In the step definition, you define how much data to write at a time. In this case, it writes up to ten records at a time. Next, you configure the reader, processor, and writer using the injected bits from earlier.
> Note: chunk() is prefixed `<Person,Person>` because it's a generic method. This represents the input and output types of each "chunk" of processing, and lines up with `ItemReader<Person>` and `ItemWriter<Person>`.
> **Note:** chunk() is prefixed `<Person,Person>` because it's a generic method. This represents the input and output types of each "chunk" of processing, and lines up with `ItemReader<Person>` and `ItemWriter<Person>`.
Finally, you run the application.