org.h2.bnf
Class RuleElement

java.lang.Object
  org.h2.bnf.RuleElement

All Implemented Interfaces:

Rule

public class RuleElement
extends java.lang.Object
implements Rule

A single terminal rule in a BNF object.

Method Summary

void	accept(BnfVisitor visitor) Call the visit method in the given visitor.
void	addNextTokenList(Sentence sentence) Add the next possible token for a query.
boolean	matchRemove(Sentence sentence) Remove a token from a sentence.
java.lang.String	name() Get the name of the rule.
void	setLinks(java.util.HashMap<java.lang.String,RuleHead> ruleMap) Update cross references.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

accept

public void accept(BnfVisitor visitor)

Description copied from interface: Rule

Call the visit method in the given visitor.

Specified by:

accept in interface Rule

Parameters:

visitor - the visitor

name

public java.lang.String name()

Description copied from interface: Rule

Get the name of the rule.

Specified by:

name in interface Rule

Returns:

the name

setLinks

public void setLinks(java.util.HashMap<java.lang.String,RuleHead> ruleMap)

Description copied from interface: Rule

Update cross references.

Specified by:

setLinks in interface Rule

Parameters:

ruleMap - the reference map

matchRemove

public boolean matchRemove(Sentence sentence)

Description copied from interface: Rule

Remove a token from a sentence. Used for autocomplete support. If there was a match, the query in the sentence is updated (the matched token is removed).

Specified by:

matchRemove in interface Rule

Parameters:

sentence - the sentence context

Returns:

false if not a match or a partial match, true if a full match

addNextTokenList

public void addNextTokenList(Sentence sentence)

Description copied from interface: Rule

Add the next possible token for a query. Used for autocomplete support.

Specified by:

addNextTokenList in interface Rule

Parameters:

sentence - the sentence context