stream.data

Class SteadyState

java.lang.Object

stream.AbstractProcessor

stream.data.SteadyState

All Implemented Interfaces:

Processor, StatefulProcessor

public class SteadyState
extends AbstractProcessor

This processor keeps a state of attributes, which will result in filling up missing values of data items as they are processed. New values of an incoming item will update the current state of the attribute within the processor.

Author:

Christian Bockermann

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Keys	keys
(package private) Map<String,Serializable>	states

Fields inherited from class stream.AbstractProcessor

context

Constructor Summary

Constructors

Constructor and Description
SteadyState()

Method Summary

Modifier and Type	Method and Description
Keys	getKeys()
Data	process(Data item)
void	setKeys(Keys keys)

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

states

final Map<String,Serializable> states

keys

Keys keys

Constructor Detail

SteadyState

public SteadyState()

Method Detail

getKeys

public Keys getKeys()

Returns:

the keys

setKeys

public void setKeys(Keys keys)

Parameters:

keys - the keys to set

process

public Data process(Data item)

See Also:

Processor.process(stream.Data)