CODEWITHSUNDEEP
javaspringspring-bootspring-mvcspring-batch
Prathviraj Singh Chouhan
Prathviraj Singh Chouhan

Reputation: 41

How to return customized item, instead of original item to itemwriter in spring batch

Hi I am using itemreader, processor and itemwriter, I want my writer to write only specific fields, instead of writing whole item.

For ex.

let say my model class contains below 5 field with there getter & setter method:

RECORD.CLASS

private String ordNo;
private String ordDate;
private String prtDctStsCd;
private String ordRefNo;
private String ordStsCd;

Now my processor is:

public class RecordTableProcessor implements ItemProcessor<Record, Record>{

//somecode

return item; }

Writer: Flatfileitemwriter

Now I want my itemwriter to write only ordNo and ordDate field only. Instead of writing whole 5 item of record class.

Any Idea how to do that? and one more question how can I return only some fields from item processor instead of whole item, is there any way to return what we want?

Upvotes: 0

Views: 359

Answers (1)

andrew17
andrew17

Reputation: 925

Assume you map ItemReader result to Record class, then in Processor you convert your DTO object to another type, for example SpecificRecord.

return new SpecificRecord(record);

In SpecificRecord only fields that you need.

So in ItemWriter you write new SpecificRecord object.

Upvotes: 0

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