org.springframework.batch.item.file.separator

Interface RecordSeparatorPolicy

All Known Implementing Classes:

DefaultRecordSeparatorPolicy, JsonRecordSeparatorPolicy, SimpleRecordSeparatorPolicy, SuffixRecordSeparatorPolicy

public interface RecordSeparatorPolicy

Policy for text file-based input sources to determine the end of a record, e.g. a record might be a single line, or it might be multiple lines terminated by a semicolon.

Author:

Dave Syer

Method Summary

Methods

Modifier and Type	Method and Description
boolean	isEndOfRecord(String record) Signal the end of a record based on the content of the current record.
String	postProcess(String record) Give the policy a chance to post-process a complete record, e.g.
String	preProcess(String record) Pre-process a record before another line is appended, in the case of a multi-line record.

Method Detail

isEndOfRecord

boolean isEndOfRecord(String record)

Signal the end of a record based on the content of the current record. During the course of processing, each time this method returns false, the next line read is appended onto it (building the record). The input is what you would expect from BufferedReader.readLine() - i.e. no line separator character at the end. But it might have line separators embedded in it.

Parameters:

record - a String without a newline character at the end.

Returns:

true if this line is a complete record.

postProcess

String postProcess(String record)

Give the policy a chance to post-process a complete record, e.g. remove a suffix.

Parameters:

record - the complete record.

Returns:

a modified version of the record if desired.

preProcess

String preProcess(String record)

Pre-process a record before another line is appended, in the case of a multi-line record. Can be used to remove a prefix or line-continuation marker. If a record is a single line this callback is not used (but postProcess(String) will be).

Parameters:

record - the current record.

Returns:

the line as it should be appended to a record.