de.up.ling.irtg.signature

Class SignatureMapper

java.lang.Object

de.up.ling.irtg.signature.SignatureMapper

Direct Known Subclasses:

IdentitySignatureMapper

public class SignatureMapper
extends Object

A mapping between the symbol IDs of two interners.

TODO - despite the name, this data structure maps between two interners, not two signatures. We should rename the class at some point.

Author:

koller

Constructor Summary

Constructors

Constructor and Description
SignatureMapper(Interner input, Interner output) Creates a new mapper for the two given interners.

Method Summary

Modifier and Type	Method and Description
void	recompute() Recomputes the mappings.
int	remapBackward(int symbolID) Maps a symbolID from the output to the input signature.
int	remapForward(int symbolID) Maps a symbolID from the input to the output signature.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

SignatureMapper

public SignatureMapper(Interner input,
                       Interner output)

Creates a new mapper for the two given interners. It will map ids to each other which correspond to the same string.

Parameters:

input -

output -

Method Detail

remapForward

public int remapForward(int symbolID)

Maps a symbolID from the input to the output signature. This means that the symbol with ID "symbolID" in the input signature is the same as the symbol with ID remapForward(symbolID) in the output signature.

Parameters:

symbolID -

Returns:

remapBackward

public int remapBackward(int symbolID)

Maps a symbolID from the output to the input signature. This means that the symbol with ID "symbolID" in the output signature is the same as the symbol with ID remapBackward(symbolID) in the input signature.

Parameters:

symbolID -

Returns:

recompute

public void recompute()

Recomputes the mappings. This may become necessary if new symbols were added to one or both signatures since the SignatureMapping was created.

toString

public String toString()

Overrides:

toString in class Object