Java Doc for ELToken.java in  » Workflow-Engines » jbpm-jpdl-3.2.2 » org » jbpm » jpdl » el » parser » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Workflow Engines » jbpm jpdl 3.2.2 » org.jbpm.jpdl.el.parser 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.jbpm.jpdl.el.parser.ELToken

ELToken
public class ELToken (Code)
Describes the input token stream.


Field Summary
public  intbeginLinebeginColumnendLineendColumn
     beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn describe the position of the last character of this token.
public  Stringimage
     The string image of the token.
public  intkind
     An integer that describes the kind of this token.
public  ELTokennext
     A reference to the next regular (non-special) token from the input stream.
public  ELTokenspecialToken
     This field is used to access special tokens that occur prior to this token, but after the immediately preceding regular (non-special) token. If there are no such special tokens, this field is set to null. When there are more than one such special token, this field refers to the last of these special tokens, which in turn refers to the next previous special token through its specialToken field, and so on until the first special token (whose specialToken field is null). The next fields of special tokens refer to other special tokens that immediately follow it (without an intervening regular token).


Method Summary
final public static  ELTokennewToken(int ofKind)
     Returns a new Token object, by default.
final public  StringtoString()
     Returns the image.

Field Detail
beginLinebeginColumnendLineendColumn
public int beginLinebeginColumnendLineendColumn(Code)
beginLine and beginColumn describe the position of the first character of this token; endLine and endColumn describe the position of the last character of this token.



image
public String image(Code)
The string image of the token.



kind
public int kind(Code)
An integer that describes the kind of this token. This numbering system is determined by JavaCCParser, and a table of these numbers is stored in the file ...Constants.java.



next
public ELToken next(Code)
A reference to the next regular (non-special) token from the input stream. If this is the last token from the input stream, or if the token manager has not read tokens beyond this one, this field is set to null. This is true only if this token is also a regular token. Otherwise, see below for a description of the contents of this field.



specialToken
public ELToken specialToken(Code)
This field is used to access special tokens that occur prior to this token, but after the immediately preceding regular (non-special) token. If there are no such special tokens, this field is set to null. When there are more than one such special token, this field refers to the last of these special tokens, which in turn refers to the next previous special token through its specialToken field, and so on until the first special token (whose specialToken field is null). The next fields of special tokens refer to other special tokens that immediately follow it (without an intervening regular token). If there is no such token, this field is null.





Method Detail
newToken
final public static ELToken newToken(int ofKind)(Code)
Returns a new Token object, by default. However, if you want, you can create and return subclass objects based on the value of ofKind. Simply add the cases to the switch for all those special cases. For example, if you have a subclass of Token called IDToken that you want to create if ofKind is ID, simlpy add something like : case MyParserConstants.ID : return new IDToken(); to the following switch statement. Then you can cast matchedToken variable to the appropriate type and use it in your lexical actions.



toString
final public String toString()(Code)
Returns the image.



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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