Java Doc for TokenStreamHiddenTokenFilter.java in  » Database-ORM » toplink » persistence » antlr » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Database ORM » toplink » persistence.antlr 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   persistence.antlr.TokenStreamBasicFilter
      persistence.antlr.TokenStreamHiddenTokenFilter

TokenStreamHiddenTokenFilter
public class TokenStreamHiddenTokenFilter extends TokenStreamBasicFilter implements TokenStream(Code)
This object filters a token stream coming from a lexer or another TokenStream so that only certain token channels get transmitted to the parser. Any of the channels can be filtered off as "hidden" channels whose tokens can be accessed from the parser.


Field Summary
protected  CommonHiddenStreamTokenfirstHidden
    
protected  BitSethideMask
    
protected  CommonHiddenStreamTokenlastHiddenToken
    
protected  CommonHiddenStreamTokennextMonitoredToken
    

Constructor Summary
public  TokenStreamHiddenTokenFilter(TokenStream input)
    

Method Summary
protected  CommonHiddenStreamTokenLA(int i)
    
protected  voidconsume()
    
public  BitSetgetDiscardMask()
    
public  CommonHiddenStreamTokengetHiddenAfter(CommonHiddenStreamToken t)
     Return a ptr to the hidden token appearing immediately after token t in the input stream.
public  CommonHiddenStreamTokengetHiddenBefore(CommonHiddenStreamToken t)
     Return a ptr to the hidden token appearing immediately before token t in the input stream.
public  BitSetgetHideMask()
    
public  CommonHiddenStreamTokengetInitialHiddenToken()
     Return the first hidden token if one appears before any monitored token.
public  voidhide(int m)
    
public  voidhide(BitSet mask)
    
public  TokennextToken()
     Return the next monitored token.

Field Detail
firstHidden
protected CommonHiddenStreamToken firstHidden(Code)



hideMask
protected BitSet hideMask(Code)



lastHiddenToken
protected CommonHiddenStreamToken lastHiddenToken(Code)
track tail of hidden list emanating from previous monitored token



nextMonitoredToken
protected CommonHiddenStreamToken nextMonitoredToken(Code)




Constructor Detail
TokenStreamHiddenTokenFilter
public TokenStreamHiddenTokenFilter(TokenStream input)(Code)




Method Detail
LA
protected CommonHiddenStreamToken LA(int i)(Code)



consume
protected void consume() throws TokenStreamException(Code)



getDiscardMask
public BitSet getDiscardMask()(Code)



getHiddenAfter
public CommonHiddenStreamToken getHiddenAfter(CommonHiddenStreamToken t)(Code)
Return a ptr to the hidden token appearing immediately after token t in the input stream.



getHiddenBefore
public CommonHiddenStreamToken getHiddenBefore(CommonHiddenStreamToken t)(Code)
Return a ptr to the hidden token appearing immediately before token t in the input stream.



getHideMask
public BitSet getHideMask()(Code)



getInitialHiddenToken
public CommonHiddenStreamToken getInitialHiddenToken()(Code)
Return the first hidden token if one appears before any monitored token.



hide
public void hide(int m)(Code)



hide
public void hide(BitSet mask)(Code)



nextToken
public Token nextToken() throws TokenStreamException(Code)
Return the next monitored token. Test the token following the monitored token. If following is another monitored token, save it for the next invocation of nextToken (like a single lookahead token) and return it then. If following is unmonitored, nondiscarded (hidden) channel token, add it to the monitored token. Note: EOF must be a monitored Token.



Fields inherited from persistence.antlr.TokenStreamBasicFilter
protected BitSet discardMask(Code)(Java Doc)
protected TokenStream input(Code)(Java Doc)

Methods inherited from persistence.antlr.TokenStreamBasicFilter
public void discard(int ttype)(Code)(Java Doc)
public void discard(BitSet mask)(Code)(Java Doc)
public Token nextToken() throws TokenStreamException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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