edu.umass.cs.mallet.base.pipe

Class SerialPipes

java.lang.Object

edu.umass.cs.mallet.base.pipe.Pipe

edu.umass.cs.mallet.base.pipe.SerialPipes

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

NEPipes

public class SerialPipes
extends Pipe
implements Serializable

Convert an instance through a sequence of pipes.

Author:

Andrew McCallum mccallum@cs.umass.edu

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SerialPipes()
SerialPipes(List pipeList)
SerialPipes(Object[] pipes)
SerialPipes(Pipe[] pipes)

Method Summary

Modifier and Type	Method and Description
protected void	add(Pipe pipe)
Pipe	getPipe(int index)
ArrayList	getPipes()
static boolean	isSuppressExceptions()
Instance	pipe(Instance carrier) Process an Instance.
Instance	pipe(Instance carrier, int startingIndex)
Instance	pipe(Instance carrier, int startingIndex, boolean growAlphabet)
void	removePipe(int index)
void	replacePipe(int index, Pipe p)
protected Alphabet	resolveDataAlphabet()
protected Alphabet	resolveTargetAlphabet()
static void	setSuppressExceptions(boolean suppressExceptions)
void	setTargetProcessing(boolean lookForAndProcessTarget) Set whether input is taken from target field of instance during processing.
int	size()
String	toString()

Methods inherited from class edu.umass.cs.mallet.base.pipe.Pipe

getDataAlphabet, getInstanceId, getParent, getParentRoot, getTargetAlphabet, isDataAlphabetSet, isTargetProcessing, pipe, readResolve, setDataAlphabet, setParent, setTargetAlphabet

Methods inherited from class java.lang.Object

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

Constructor Detail

SerialPipes

public SerialPipes()

SerialPipes

public SerialPipes(Object[] pipes)

SerialPipes

public SerialPipes(Pipe[] pipes)

SerialPipes

public SerialPipes(List pipeList)

Method Detail

getPipes

public ArrayList getPipes()

isSuppressExceptions

public static boolean isSuppressExceptions()

setSuppressExceptions

public static void setSuppressExceptions(boolean suppressExceptions)

setTargetProcessing

public void setTargetProcessing(boolean lookForAndProcessTarget)

Description copied from class: Pipe

Set whether input is taken from target field of instance during processing. If argument is false, don't expect to find input material for the target. By default, this is true.

Overrides:

setTargetProcessing in class Pipe

resolveDataAlphabet

protected Alphabet resolveDataAlphabet()

Overrides:

resolveDataAlphabet in class Pipe

resolveTargetAlphabet

protected Alphabet resolveTargetAlphabet()

Overrides:

resolveTargetAlphabet in class Pipe

add

protected void add(Pipe pipe)

pipe

public Instance pipe(Instance carrier,
                     int startingIndex)

pipe

public Instance pipe(Instance carrier,
                     int startingIndex,
                     boolean growAlphabet)

removePipe

public void removePipe(int index)

replacePipe

public void replacePipe(int index,
                        Pipe p)

size

public int size()

getPipe

public Pipe getPipe(int index)

pipe

public Instance pipe(Instance carrier)

Description copied from class: Pipe

Process an Instance. This method takes an input Instance, destructively modifies it in some way, and returns it. This is the method by which all pipes are eventually run.

One can create a new concrete subclass of Pipe simply by implementing this method.

Specified by:

pipe in class Pipe

Parameters:

carrier - Instance to be processed.

toString

public String toString()

Overrides:

toString in class Object