stream.data.tree

Class AbstractTreeFeature

java.lang.Object

stream.AbstractProcessor

stream.data.tree.AbstractTreeFeature

All Implemented Interfaces:

TreeFeature, Processor, StatefulProcessor

Direct Known Subclasses:

CountLeaves, CountNodes, Height

public abstract class AbstractTreeFeature
extends AbstractProcessor
implements TreeFeature

Field Summary

Fields

Modifier and Type	Field and Description
(package private) String	id
(package private) String[]	keys
(package private) String	missingValue

Fields inherited from class stream.AbstractProcessor

context

Constructor Summary

Constructors

Constructor and Description
AbstractTreeFeature()

Method Summary

Modifier and Type	Method and Description
abstract Serializable	compute(TreeNode tree)
String	createFeatureKey(String inputKey)
String	getId()
String[]	getKeys()
String	getMissing()
Data	process(Data data)
void	processTree(String treeKey, Data data)
void	setId(String id)
void	setKeys(String[] keys)
void	setMissing(String missingValue)

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

id

String id

missingValue

String missingValue

keys

String[] keys

Constructor Detail

AbstractTreeFeature

public AbstractTreeFeature()

Method Detail

process

public Data process(Data data)

Specified by:

process in interface Processor

See Also:

DataProcessor

processTree

public void processTree(String treeKey,
                        Data data)

getId

public String getId()

Returns:

the id

setId

public void setId(String id)

Parameters:

id - the id to set

getKeys

public String[] getKeys()

Returns:

the keys

setKeys

public void setKeys(String[] keys)

Parameters:

keys - the keys to set

getMissing

public String getMissing()

Returns:

the missingValue

setMissing

public void setMissing(String missingValue)

Parameters:

missingValue - the missingValue to set

createFeatureKey

public String createFeatureKey(String inputKey)

Specified by:

createFeatureKey in interface TreeFeature

compute

public abstract Serializable compute(TreeNode tree)

Specified by:

compute in interface TreeFeature