Item Writers - Spring Batch - page 259

Table 9-1. FlatFileItemWriter Cconfiguration Options

Option Type Default Description

UTF-8 encoding String Character encoding for the file.

footerCallback FlatFileFooterCall

back

null

Executed after the last item of

a file has been written.

headerCallback FlatFileHeaderCall

back

null Executed before the first item

of a file has been written.

null (required) lineAggregator LineAggregator Used to convert an individual

item to a String for output.

lineSeparator String

System's Generated file's newline

line.separator character.

null (required) File or stream to be written to.

resource Resource

saveState boolean true

Determines if the state of the
writer should be stored in the
ExecutionContext as
processing occurs.

shouldDeleteIfEmpty boolean false

If true and no records are
written (not including
header/footer records), the file
is deleted on the close of the
reader.

appendAllowed boolean false If true and the file to be

written to already exists, the
output is appended to it
instead of replacing the file. If
true , shouldDeleteIfExists is
automatically set to false .

shouldDeleteIfExists boolean true If true and the file to be

written to exists prior to the
run of the job, the file is
deleted and a new file is
created.

transactional boolean true

If true and a transaction is
currently active, the writing of
the data to the file is delayed