Package org.drools.lang.descr

Examples of org.drools.lang.descr.LiteralRestrictionDescr

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            Restriction restriction = null;
            // is it a literal? Does not include enums
            if ( isRightLiteral ) {
                restriction = buildLiteralRestriction( context,
                                                       extractor,
                                                       new LiteralRestrictionDescr( operator,
                                                                                    relDescr.isNegated(),
                                                                                    relDescr.getParameters(),
                                                                                    rightValue,
                                                                                    LiteralRestrictionDescr.TYPE_STRING ) ); // default type
                if ( restriction == null ) {
                    // otherwise we just get wierd errors after this point on literals
                    continue;
                }
            } else {
                // is it an enum?
                int dotPos = rightValue.lastIndexOf( '.' );
                if ( dotPos >= 0 ) {
                    final String mainPart = rightValue.substring( 0,
                                                             dotPos );
                    String lastPart = rightValue.substring( dotPos + 1 );
                    try {
                        final Class< ? > cls = context.getDialect().getTypeResolver().resolveType( mainPart );
                        if ( lastPart.indexOf( '(' ) < 0 && lastPart.indexOf( '.' ) < 0 && lastPart.indexOf( '[' ) < 0 ) {
                            restriction = buildLiteralRestriction( context,
                                                                   extractor,
                                                                   new LiteralRestrictionDescr( operator,
                                                                                                relDescr.isNegated(),
                                                                                                relDescr.getParameters(),
                                                                                                rightValue,
                                                                                                LiteralRestrictionDescr.TYPE_STRING ) ); // default type
                        }
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        final PatternDescr patternDescr = new PatternDescr( Cheese.class.getName(),
                                                            "stilton" );

        final FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  null ) );

        patternDescr.addConstraint( literalDescr );

        ruleDescr.setConsequence( "" );
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        lhs = new AndDescr();
        ruleDescr.setLhs( lhs );
        patternDescr = new PatternDescr( Cheese.class.getName(),
                                         "stilton" );
        literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "!=",
                                                                  null ) );
        patternDescr.addConstraint( literalDescr );
        ruleDescr.setConsequence( "" );

        ruleDescr = new RuleDescr( "rule-2" );
        ruleDescr.setLocation( 42,
                               43 );
        packageDescr.addRule( ruleDescr );
        lhs = new AndDescr();
        ruleDescr.setLhs( lhs );
        patternDescr = new PatternDescr( Cheese.class.getName(),
                                         "stilton" );

        literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "!=",
                                                                  null ) );

        patternDescr.addConstraint( literalDescr );
        ruleDescr.setConsequence( "" );
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        AndDescr lhs = new AndDescr();
        ruleDescr.setLhs( lhs );
        PatternDescr patternDescr = new PatternDescr( Cheese.class.getName(),
                                                      "stilton" );
        FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  null ) );
        patternDescr.addConstraint( literalDescr );
        ruleDescr.setConsequence( "" );

        return packageDescr;
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        final BindingDescr fieldBindingDescr = new BindingDescr( "$type",
                                                                 "type" );

        final FieldConstraintDescr literalDescr = new FieldConstraintDescr( "type" );
        literalDescr.addRestriction( new LiteralRestrictionDescr( "==",
                                                                  "stilton" ) );

        pattern1.addConstraint( fieldBindingDescr );
        pattern1.addConstraint( literalDescr );
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        assertEquals( 3,
                      restrictionList.size() );

        // first we have a literal restriction
        LiteralRestrictionDescr litDescr = (LiteralRestrictionDescr) restrictionList.get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "yyy",
                      litDescr.getText() );

        // second, we have another literal restriction
        litDescr = (LiteralRestrictionDescr) restrictionList.get( 1 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "zzz",
                      litDescr.getText() );
       
        ReturnValueRestrictionDescr retDescr = (ReturnValueRestrictionDescr) restrictionList.get( 2 );
        assertEquals( "!=",
                      retDescr.getEvaluator() );
       
        LispForm lispForm = ( LispForm ) retDescr.getContent();
        assertEquals("(+ 2 3)", lispForm.toString() );                        

        // ----------------
        // this is how it would be compatible to our core engine
        PredicateDescr predicateDescr = (PredicateDescr) colList.get( 2 );
       
        lispForm = ( LispForm ) predicateDescr.getContent();
        assertEquals("(< 1 2)", lispForm.toString() );               

        // -----------------
        // Parse the second column
        PatternDescr hobbyPattern = (PatternDescr) lhsList.get( 1 );
        assertEquals( "$c",
                      hobbyPattern.getIdentifier() );
        assertEquals( "hobby",
                      hobbyPattern.getObjectType() );

        colList = hobbyPattern.getDescrs();
        assertEquals( 3,
                      colList.size() );

        fbd = (FieldBindingDescr) colList.get( 0 );
        assertEquals( "$bf2",
                      fbd.getIdentifier() );
        assertEquals( "type",
                      fbd.getFieldName() );
       
        fieldConstraintDescr = (FieldConstraintDescr) colList.get( 1 );
        restrictionList = fieldConstraintDescr.getRestrictions();

        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() );

        assertEquals( RestrictionConnectiveDescr.AND,
                      fieldConstraintDescr.getRestriction().getConnective() );

        litDescr = (LiteralRestrictionDescr) restrictionList.get( 0 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "iii",
                      litDescr.getText() );

        fieldConstraintDescr = (FieldConstraintDescr) colList.get( 2 );
        restrictionList = fieldConstraintDescr.getRestrictions();

        assertEquals( "rating",
                      fieldConstraintDescr.getFieldName() );

        litDescr = (LiteralRestrictionDescr) restrictionList.get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "fivestar",
                      litDescr.getText() );
    }
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        assertEquals( "person",
                      col.getObjectType() );
        FieldConstraintDescr fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "name",
                      fieldConstraintDescr.getFieldName() ); //        
        LiteralRestrictionDescr litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "yyy",
                      litDescr.getText() );

        OrDescr orDescr = (OrDescr) lhsList.get( 1 );
        assertEquals( 2,
                      orDescr.getDescrs().size() );

        AndDescr andDescr = (AndDescr) orDescr.getDescrs().get( 0 );
        col = (PatternDescr) andDescr.getDescrs().get( 0 );
        assertEquals( "hobby1",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "qqq1",
                      litDescr.getText() );

        col = (PatternDescr) andDescr.getDescrs().get( 1 );
        assertEquals( "hobby2",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "qqq2",
                      litDescr.getText() );

        col = (PatternDescr) orDescr.getDescrs().get( 1 );
        assertEquals( "food",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "veg",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "shroom",
                      litDescr.getText() );
    }
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        assertEquals( "hobby1",
                      col.getObjectType() );
        FieldConstraintDescr fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() ); //        
        LiteralRestrictionDescr litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "qqq1",
                      litDescr.getText() );

        NotDescr notDescr = (NotDescr) orDescr.getDescrs().get( 1 );
        assertEquals( 1,
                      notDescr.getDescrs().size() );
       
        AndDescr andDescr = (AndDescr) notDescr.getDescrs().get( 0 );
        assertEquals( 2, andDescr.getDescrs().size() );
        ExistsDescr existsDescr = (ExistsDescr) andDescr.getDescrs().get( 0 );
        col = (PatternDescr) existsDescr.getDescrs().get( 0 );
        assertEquals( "person",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "name",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "ppp",
                      litDescr.getText() );             
       
        col = (PatternDescr) andDescr.getDescrs().get( 1 );
        assertEquals( "person",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "name",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "yyy",
                      litDescr.getText() ); 
    }
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        assertEquals( 3,
                      restrictionList.size() );

        // first we have a literal restriction
        LiteralRestrictionDescr litDescr = (LiteralRestrictionDescr) restrictionList.get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "yyy",
                      litDescr.getText() );

        // second, we have another literal restriction
        litDescr = (LiteralRestrictionDescr) restrictionList.get( 1 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "zzz",
                      litDescr.getText() );
       
        ReturnValueRestrictionDescr retDescr = (ReturnValueRestrictionDescr) restrictionList.get( 2 );
        assertEquals( "!=",
                      retDescr.getEvaluator() );
       
        LispForm lispForm = ( LispForm ) retDescr.getContent();
        assertEquals("(+ 2 3)", lispForm.toString() );

        // ----------------
        // this is how it would be compatible to our core engine
        PredicateDescr predicateDescr = (PredicateDescr) colList.get( 2 );
       
        lispForm = ( LispForm ) predicateDescr.getContent();
        assertEquals("(< 1 2)", lispForm.toString() );

        // -----------------
        // Parse the second column
        PatternDescr hobbyPattern = (PatternDescr) lhsList.get( 1 );
        assertEquals( "$c",
                      hobbyPattern.getIdentifier() );
        assertEquals( "hobby",
                      hobbyPattern.getObjectType() );

        colList = hobbyPattern.getDescrs();
        assertEquals( 3,
                      colList.size() );

        fbd = (BindingDescr) colList.get( 0 );
        assertEquals( "$bf2",
                      fbd.getVariable() );
        assertEquals( "type",
                      fbd.getExpression() );
       
        fieldConstraintDescr = (FieldConstraintDescr) colList.get( 1 );
        restrictionList = fieldConstraintDescr.getRestrictions();

        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() );

        assertEquals( RestrictionConnectiveDescr.AND,
                      fieldConstraintDescr.getRestriction().getConnective() );

        litDescr = (LiteralRestrictionDescr) restrictionList.get( 0 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "iii",
                      litDescr.getText() );

        fieldConstraintDescr = (FieldConstraintDescr) colList.get( 2 );
        restrictionList = fieldConstraintDescr.getRestrictions();

        assertEquals( "rating",
                      fieldConstraintDescr.getFieldName() );

        litDescr = (LiteralRestrictionDescr) restrictionList.get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "fivestar",
                      litDescr.getText() );
    }
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        assertEquals( "person",
                      col.getObjectType() );
        FieldConstraintDescr fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "name",
                      fieldConstraintDescr.getFieldName() ); //        
        LiteralRestrictionDescr litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "yyy",
                      litDescr.getText() );

        OrDescr orDescr = (OrDescr) lhsList.get( 1 );
        assertEquals( 2,
                      orDescr.getDescrs().size() );

        AndDescr andDescr = (AndDescr) orDescr.getDescrs().get( 0 );
        col = (PatternDescr) andDescr.getDescrs().get( 0 );
        assertEquals( "hobby1",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "==",
                      litDescr.getEvaluator() );
        assertEquals( "qqq1",
                      litDescr.getText() );

        col = (PatternDescr) andDescr.getDescrs().get( 1 );
        assertEquals( "hobby2",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "type",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "qqq2",
                      litDescr.getText() );

        col = (PatternDescr) orDescr.getDescrs().get( 1 );
        assertEquals( "food",
                      col.getObjectType() );
        fieldConstraintDescr = (FieldConstraintDescr) col.getDescrs().get( 0 );
        assertEquals( "veg",
                      fieldConstraintDescr.getFieldName() ); //        
        litDescr = (LiteralRestrictionDescr) fieldConstraintDescr.getRestrictions().get( 0 );
        assertEquals( "!=",
                      litDescr.getEvaluator() );
        assertEquals( "shroom",
                      litDescr.getText() );
    }
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Related Classes of org.drools.lang.descr.LiteralRestrictionDescr

  • org.drools.clips.LhsClpParserTest
  • org.drools.compiler.PackageBuilderTest
  • org.drools.compiler.xml.rules.LiteralRestrictionHandler
  • org.drools.compiler.xml.rules.XmlPackageReaderTest
  • org.drools.lang.RuleParserTest
  • org.drools.rule.builder.dialect.java.RuleBuilderTest
  • org.drools.rule.builder.PatternBuilder
  • org.drools.xml.LiteralRestrictionHandler
  • org.drools.xml.rules.LiteralRestrictionHandler
  • org.drools.xml.rules.XmlPackageReaderTest
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