A step is a domain object that encapsulates an independent, sequential phase of the job.In short, a job (with JSR 352) is basically a container for steps. In JSR 352, JSL is specified in an XML file called the job XML file. A job is put together using a Job Specification Language (JSL) that specifies the sequence in which the steps must be executed. A job encapsulates the entire batch process.
This section and Figure 1 describe the basic components of the batch processing architecture. The article also describes how you can run batch applications using GlassFish Server Open Source Edition 4.0. This article covers some of the key concepts including feature highlights, an overview of selected APIs, the structure of Job Specification Language, and a sample batch application.
JAVA JOS PLUS
JSR 352 (Batch Processing for Java Platform), part of the recently introduced Java EE 7 platform, defines the programming model for batch applications plus a runtime to run and manage batch jobs. Also, since batch jobs are typically long-running jobs, check-pointing and restarting are common features found in batch jobs. Batch jobs can be run on schedule or initiated on demand. Typically, batch processing is bulk-oriented, non-interactive, and long running-and might be data- or computation-intensive. Examine the new batch processing capability provided by JSR 352 for Java EE 7.īatch processing is used in many industries for tasks ranging from payroll processing statement generation end-of-day jobs such as interest calculation and ETL (extract, load, and transform) in a data warehouse and many more.
0 kommentar(er)
