Package org.drools.drl.parser

Class DRLFactory

java.lang.Object

org.drools.drl.parser.DRLFactory

public class DRLFactory
extends Object

Method Summary

Modifier and Type	Method	Description
static DRLLexer	buildLexer(InputStream is, String encoding, LanguageLevelOption languageLevel)
static DRLLexer	buildLexer(Reader reader, LanguageLevelOption languageLevel)
static DRLLexer	buildLexer(String text, LanguageLevelOption languageLevel)
static DRLParser	buildParser(InputStream is, String encoding, LanguageLevelOption languageLevel)
static DRLParser	buildParser(Reader reader, LanguageLevelOption languageLevel)
static DRLParser	buildParser(String text, LanguageLevelOption languageLevel)
static DRLParser	buildParser(org.antlr.runtime.CharStream input, LanguageLevelOption languageLevel)
static DRLParser	buildParser(DRLLexer lexer, LanguageLevelOption languageLevel)
static String	getBetterToken(int tokenType, String defaultValue, LanguageLevelOption languageLevel)	Helper method that creates a user friendly token definition
static DRLExpressions	getDRLExpressions(org.antlr.runtime.TokenStream input, org.antlr.runtime.RecognizerSharedState state, ParserHelper helper, LanguageLevelOption languageLevel)
static DRLLexer	getDRLLexer(org.antlr.runtime.CharStream input, LanguageLevelOption languageLevel)
static DRLParser	getDRLParser(org.antlr.runtime.CommonTokenStream stream, LanguageLevelOption languageLevel)
static int	lexerId(LanguageLevelOption languageLevel)

Methods inherited from class java.lang.Object

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

Method Details

buildLexer

public static DRLLexer buildLexer(String text,
 LanguageLevelOption languageLevel)

buildLexer

public static DRLLexer buildLexer(Reader reader,
 LanguageLevelOption languageLevel)

buildLexer

public static DRLLexer buildLexer(InputStream is,
 String encoding,
 LanguageLevelOption languageLevel)

buildParser

public static DRLParser buildParser(DRLLexer lexer,
 LanguageLevelOption languageLevel)

buildParser

public static DRLParser buildParser(org.antlr.runtime.CharStream input,
 LanguageLevelOption languageLevel)

buildParser

public static DRLParser buildParser(String text,
 LanguageLevelOption languageLevel)

buildParser

public static DRLParser buildParser(Reader reader,
 LanguageLevelOption languageLevel)

buildParser

public static DRLParser buildParser(InputStream is,
 String encoding,
 LanguageLevelOption languageLevel)

getDRLParser

public static DRLParser getDRLParser(org.antlr.runtime.CommonTokenStream stream,
 LanguageLevelOption languageLevel)

getDRLLexer

public static DRLLexer getDRLLexer(org.antlr.runtime.CharStream input,
 LanguageLevelOption languageLevel)

getDRLExpressions

public static DRLExpressions getDRLExpressions(org.antlr.runtime.TokenStream input,
 org.antlr.runtime.RecognizerSharedState state,
 ParserHelper helper,
 LanguageLevelOption languageLevel)

lexerId

public static int lexerId(LanguageLevelOption languageLevel)

getBetterToken

public static String getBetterToken(int tokenType,
 String defaultValue,
 LanguageLevelOption languageLevel)

Helper method that creates a user friendly token definition

Parameters:

tokenType - token type

defaultValue - default value for identifier token, may be null

Returns:

user friendly token definition