net.seninp.gi.sequitur

Class SAXGuard

java.lang.Object

net.seninp.gi.sequitur.SAXSymbol

net.seninp.gi.sequitur.SAXGuard

public class SAXGuard
extends SAXSymbol

The Guard node - serves as head of the "doubly-linked" list representing a rule - in other words it's a rule handler. Adaption of Eibe Frank code for JMotif API.

Author:

Manfred Lerner, seninp

Field Summary

Fields

Modifier and Type	Field and Description
protected SAXRule	r

Fields inherited from class net.seninp.gi.sequitur.SAXSymbol

n, numTerminals, originalPosition, p, theDigrams, theSubstituteTable, value

Constructor Summary

Constructors

Constructor and Description
SAXGuard(SAXRule theRule) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	check() "Checks in" a new digram and enforce the digram uniqueness constraint.
void	cleanUp() Cleans up template.
void	deleteDigram() Removes the digram from the hash table.
boolean	isGuard() Returns true if this is the guard symbol.

Methods inherited from class net.seninp.gi.sequitur.SAXSymbol

equals, getPayload, hashCode, insertAfter, isNonTerminal, join, match, substitute, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

r

protected SAXRule r

Constructor Detail

SAXGuard

public SAXGuard(SAXRule theRule)

Constructor.

Parameters:

theRule - The guard holds.

Method Detail

cleanUp

public void cleanUp()

Cleans up template.

Specified by:

cleanUp in class SAXSymbol

isGuard

public boolean isGuard()

Returns true if this is the guard symbol. Overwritten in subclass guard.

Overrides:

isGuard in class SAXSymbol

Returns:

true if the guard.

deleteDigram

public void deleteDigram()

Removes the digram from the hash table. Overwritten in sub class guard.

Overrides:

deleteDigram in class SAXSymbol

check

public boolean check()

"Checks in" a new digram and enforce the digram uniqueness constraint. If it appears elsewhere, deals with it by calling match(), otherwise inserts it into the hash table. Overwritten in subclass guard.

Overrides:

check in class SAXSymbol

Returns:

true if it is not unique.