Package org.drools.drl.parser.lang

Class ParserHelper

java.lang.Object
org.drools.drl.parser.lang.ParserHelper
public class ParserHelper extends Object
This is a class to hold all the helper functions/methods used by the DRL parser

  • Field Details

    • LOG

      public static final org.slf4j.Logger LOG

    • statementKeywords

      public final String[] statementKeywords

    • errors

      public List<DroolsParserException> errors

    • editorInterface

      public LinkedList<DroolsSentence> editorInterface

    • isEditorInterfaceEnabled

      public boolean isEditorInterfaceEnabled

  • Constructor Details

    • ParserHelper

      public ParserHelper(org.antlr.runtime.TokenStream input, org.antlr.runtime.RecognizerSharedState state, LanguageLevelOption languageLevel)

  • Method Details

    • getEditorInterface

      public LinkedList<DroolsSentence> getEditorInterface()

    • setLeftMostExpr

      public void setLeftMostExpr(String value)

    • getLeftMostExpr

      public String getLeftMostExpr()

    • enableEditorInterface

      public void enableEditorInterface()

    • disableEditorInterface

      public void disableEditorInterface()

    • setHasOperator

      public void setHasOperator(boolean hasOperator)

    • getHasOperator

      public boolean getHasOperator()

    • beginSentence

      public void beginSentence(DroolsSentenceType sentenceType)

    • getActiveSentence

      public DroolsSentence getActiveSentence()

    • emit

      public void emit(List<?> tokens, DroolsEditorType editorType)

    • emit

      public void emit(org.antlr.runtime.Token token, DroolsEditorType editorType)

    • emit

      public void emit(int activeContext)

    • getLastTokenOnList

      public DroolsToken getLastTokenOnList(LinkedList<?> list)

    • retrieveLT

      public String retrieveLT(int LTNumber)

    • validateLT

      public boolean validateLT(int LTNumber, String text)

    • isPluggableEvaluator

      public boolean isPluggableEvaluator(int offset, boolean negated)

    • isPluggableEvaluator

      public boolean isPluggableEvaluator(boolean negated)

    • validateIdentifierKey

      public boolean validateIdentifierKey(String text)

    • validateCEKeyword

      public boolean validateCEKeyword(int index)

    • validateStatement

      public boolean validateStatement(int index)

    • validateAttribute

      public boolean validateAttribute(int index)

    • reportError

      public void reportError(org.antlr.runtime.RecognitionException ex)

    • reportError

      public void reportError(Exception e)

    • getErrors

      public List<DroolsParserException> getErrors()
      return the raw DroolsParserException errors

    • getErrorMessages

      public List<String> getErrorMessages()
      Return a list of pretty strings summarising the errors

    • hasErrors

      public boolean hasErrors()
      return true if any parser errors were accumulated

    • pushParaphrases

      public void pushParaphrases(DroolsParaphraseTypes type)
      Method that adds a paraphrase type into paraphrases stack.
      Parameters:
      type - paraphrase type

    • popParaphrases

      public Map<DroolsParaphraseTypes,String> popParaphrases()

    • setParaphrasesValue

      public void setParaphrasesValue(DroolsParaphraseTypes type, String value)
      Method that sets paraphrase value for a type into paraphrases stack.
      Parameters:
      type - paraphrase type
      value - paraphrase value

    • start

      public <T extends DescrBuilder<?, ?>> T start(DescrBuilder<?,?> ctxBuilder, Class<T> clazz, String param)

    • end

      public <T extends DescrBuilder<?, ?>> T end(Class<T> clazz, DescrBuilder<?,?> builder)

    • getStatementKeywords

      public String[] getStatementKeywords()

    • logHalfConstraintWarn

      public static void logHalfConstraintWarn(String logicalConstraint, BaseDescr descr)

    • logHalfConstraintWarn

      public static void logHalfConstraintWarn(String message)

    • logCustomOperatorWarn

      public static void logCustomOperatorWarn(org.antlr.runtime.Token token)

    • logInfixOrWarn

      public static void logInfixOrWarn(CEDescrBuilder descrBuilder)

    • logInfixAndWarn

      public static void logInfixAndWarn(CEDescrBuilder descrBuilder)

    • logAnnotationInLhsPatternWarn

      public static void logAnnotationInLhsPatternWarn(CEDescrBuilder descrBuilder)

    • logAgendaGroupWarn

      public static void logAgendaGroupWarn(AttributeDescr attributeDescr)