org.springframework.batch.sample.domain.multiline
Class AggregateItemFieldSetMapper<T>

java.lang.Object
  org.springframework.batch.sample.domain.multiline.AggregateItemFieldSetMapper<T>

All Implemented Interfaces:

FieldSetMapper<AggregateItem<T>>, InitializingBean

public class AggregateItemFieldSetMapper<T>
extends Object
implements FieldSetMapper<AggregateItem<T>>, InitializingBean

Delegating mapper to convert form a vanilla FieldSetMapper to one that returns AggregateItem instances for consumption by the AggregateItemReader.

Author:

Dave Syer

Constructor Summary

AggregateItemFieldSetMapper()

Method Summary

void	afterPropertiesSet() Check mandatory properties (delegate).
AggregateItem<T>	mapFieldSet(FieldSet fieldSet) Build an AggregateItem based on matching the first column in the input FieldSet to check for begin and end delimiters.
void	setBegin(String begin) Public setter for the begin value.
void	setDelegate(FieldSetMapper<T> delegate) Public setter for the delegate.
void	setEnd(String end) Public setter for the end field value.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AggregateItemFieldSetMapper

public AggregateItemFieldSetMapper()

Method Detail

setDelegate

public void setDelegate(FieldSetMapper<T> delegate)

Public setter for the delegate.

Parameters:

delegate - the delegate to set

setEnd

public void setEnd(String end)

Public setter for the end field value. If the FieldSet input has a first field with this value that signals the start of an aggregate record.

Parameters:

end - the end to set

setBegin

public void setBegin(String begin)

Public setter for the begin value. If the FieldSet input has a first field with this value that signals the end of an aggregate record.

Parameters:

begin - the begin to set

afterPropertiesSet

public void afterPropertiesSet()
                        throws Exception

Check mandatory properties (delegate).

Specified by:

afterPropertiesSet in interface InitializingBean

Throws:

Exception

See Also:

InitializingBean.afterPropertiesSet()

mapFieldSet

public AggregateItem<T> mapFieldSet(FieldSet fieldSet)

Build an AggregateItem based on matching the first column in the input FieldSet to check for begin and end delimiters. If the current record is neither a begin nor an end marker then it is mapped using the delegate.

Specified by:

mapFieldSet in interface FieldSetMapper<AggregateItem<T>>

Parameters:

fieldSet - a FieldSet to map

Returns:

an AggregateItem that wraps the return value from the delegate