org.springframework.batch.item.file

Interface LineMapper<T>

Type Parameters:

T - type of the domain object

All Known Implementing Classes:

DefaultLineMapper, JsonLineMapper, PassThroughLineMapper, PatternMatchingCompositeLineMapper

public interface LineMapper<T>

Interface for mapping lines (strings) to domain objects typically used to map lines read from a file to domain objects on a per line basis. Implementations of this interface perform the actual work of parsing a line without having to deal with how the line was obtained.

Since:

2.0

Author:

Robert Kasanicky

See Also:

FieldSetMapper, LineTokenizer

Method Summary

Modifier and Type	Method and Description
T	mapLine(java.lang.String line, int lineNumber) Implementations must implement this method to map the provided line to the parameter type T.

Method Detail

mapLine

T mapLine(java.lang.String line,
          int lineNumber)
   throws java.lang.Exception

Implementations must implement this method to map the provided line to the parameter type T. The line number represents the number of lines into a file the current line resides.

Parameters:

line - to be mapped

lineNumber - of the current line

Returns:

mapped object of type T

Throws:

java.lang.Exception - if error occurred while parsing.