de.zeigermann.xpa.tokenParser
Class XMLFragmentDrivenTokenStream

java.lang.Object
  |
  +--de.zeigermann.xpa.tokenParser.Parser2XMLTokenStreamAdapter
        |
        +--de.zeigermann.xpa.tokenParser.XMLFragmentDrivenTokenStream

All Implemented Interfaces:

TokenStream

public class XMLFragmentDrivenTokenStream

extends Parser2XMLTokenStreamAdapter

This class is a token stream parser driven by an XMLFragmentParser. A token queue is used to buffer tokens.

Field Summary

Fields inherited from class de.zeigermann.xpa.tokenParser.Parser2XMLTokenStreamAdapter

tokenManager

Constructor Summary

XMLFragmentDrivenTokenStream(XMLTokenTypeManager tokenManager, InputStream in)
Creates a new token stream parser with an input buffer as input.

XMLFragmentDrivenTokenStream(XMLTokenTypeManager tokenManager, Reader in)
Creates a new token stream parser with a reader as input.

XMLFragmentDrivenTokenStream(XMLTokenTypeManager tokenManager, XMLFragmentParser parser)
Creates a new token stream parser from a fully initialized XMLFragmentParser.

Method Summary

protected void	applyLocatorInfo(Token token) Does nothing, as no info is available, yet.
Token	nextToken() Gets next token from token queue if available.
protected void	setNextToken(Token token) Adds token to internal queue for later delivery by nextToken().

Methods inherited from class de.zeigermann.xpa.tokenParser.Parser2XMLTokenStreamAdapter

getIgnoreAllWhiteSpace, getTreatValidWhiteSpaceAsIgnorable, setIgnoreAllWhiteSpace, setTreatValidWhiteSpaceAsIgnorable, tellEndDocument, tellEndElement, tellPCDATA, tellStartElement, tellWhiteSpace

Methods inherited from class java.lang.Object

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

Constructor Detail

XMLFragmentDrivenTokenStream

public XMLFragmentDrivenTokenStream(XMLTokenTypeManager tokenManager,
                                    XMLFragmentParser parser)

Creates a new token stream parser from a fully initialized XMLFragmentParser.

Parameters:

tokenManager - the token manager to determine token types for token

parser - the parser feeding this token stream

XMLFragmentDrivenTokenStream

public XMLFragmentDrivenTokenStream(XMLTokenTypeManager tokenManager,
                                    Reader in)

Creates a new token stream parser with a reader as input.

Parameters:

tokenManager - the token manager to determine token types for token

in - the reader to parse XML from

XMLFragmentDrivenTokenStream

public XMLFragmentDrivenTokenStream(XMLTokenTypeManager tokenManager,
                                    InputStream in)

Creates a new token stream parser with an input buffer as input.

Parameters:

tokenManager - the token manager to determine token types for token

in - the input buffer to parse XML from

Method Detail

nextToken

public Token nextToken()
                throws TokenStreamException

Gets next token from token queue if available. If not try to pull a new one from XMLFragmentParser. Finally, return EOF token.

Specified by:

nextToken in interface TokenStream

Specified by:

nextToken in class Parser2XMLTokenStreamAdapter

Returns:

token generated by parser that feeds this adapter

TokenStreamException

See Also:

Parser2XMLTokenStreamAdapter.setNextToken(antlr.Token)

applyLocatorInfo

protected void applyLocatorInfo(Token token)

Does nothing, as no info is available, yet.

Specified by:

applyLocatorInfo in class Parser2XMLTokenStreamAdapter

setNextToken

protected void setNextToken(Token token)

Adds token to internal queue for later delivery by nextToken(). Queue is needed as some callbacks from XMLFragmentParser generate more than one token.

Specified by:

setNextToken in class Parser2XMLTokenStreamAdapter

See Also:

Parser2XMLTokenStreamAdapter.nextToken()