Q. If you want to vary the execution flow based on some logic more complex than a job’s ExitStatuses:-

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Q. Spring Batch work with a system scheduler:-

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Q. JobLauncher reference you configured previously is obtained and used to then launch an instance of a Job.

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Q. TaskExecutor that will spawn a thread of execution and manage that thread without blocking.

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Q. The CommandLineJobRunner for success will return system error codes:-

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Q. More complicated return codes can be returned by creating and declaring a top-level bean that implements the interface:-

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Q. The bean is recognized and becomes part of the application context because of the:-

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Q. To parameterize a job, which is then available to your steps through Spring Batch expression language.

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Q. To send a message into the bus and transform it before working with it further.

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Q. Spring Integration provides a transformer message endpoint to permit the augmentation of the message headers.

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Q. Spring Integration provides the ability to catch exceptions and send them to an error channel of your choosing. By default, it’s a global channel called

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Q. The errorChannel doesn’t need to be a service-activator.

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Q. All errors thrown from Spring Integration components will be a subclass of

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Q. One way to discriminate by Exception type is to use

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Q. Sending all the errors to the same channel can eventually lead to a large switch-laden class that’s too complex to maintain.

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Q. You can explicitly specify on what channel errors for a given integration should go.

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Q. Spring Integration will use that header and forward errors encountered in the processing of this message to that channel.

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