stream.data

Class CreateID

java.lang.Object

stream.AbstractProcessor

stream.data.CreateID

All Implemented Interfaces:

Processor, Service, StatefulProcessor

public class CreateID
extends AbstractProcessor
implements Service

This class adds a single ID attribute to all processed items.

Author:

Christian Bockermann <christian.bockermann@udo.edu>

Field Summary

Fields

Modifier and Type	Field and Description
(package private) String	key
(package private) Long	nextId
(package private) Long	start

Fields inherited from class stream.AbstractProcessor

context

Constructor Summary

Constructors

Constructor and Description
CreateID()

Method Summary

Modifier and Type	Method and Description
String	getKey()
Long	getStart()
Data	process(Data data)
void	reset()
void	setKey(String key)
void	setStart(Long l)

Methods inherited from class stream.AbstractProcessor

finish, init, resetState

Methods inherited from class java.lang.Object

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

Field Detail

start

Long start

nextId

Long nextId

key

String key

Constructor Detail

CreateID

public CreateID()

Method Detail

process

public Data process(Data data)

Specified by:

process in interface Processor

See Also:

DataProcessor

getKey

public String getKey()

Returns:

the key

setKey

@Parameter(defaultValue="@id")
public void setKey(String key)

Parameters:

key - the key to set

setStart

@Parameter(defaultValue="0")
public void setStart(Long l)

getStart

public Long getStart()

reset

public void reset()
           throws Exception

Specified by:

reset in interface Service

Throws:

Exception

See Also:

Service.reset()