Package org.drools.compiler.lang.descr

Examples of org.drools.compiler.lang.descr.ExprConstraintDescr

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        pattern.addConstraint( fieldBindingDescr2 );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        final ExprConstraintDescr predicate = new ExprConstraintDescr( "eval(( ( Integer )map.get( new Integer(x) )).intValue() == y)" );
        pattern.addConstraint( predicate );

        ruleDescr.setConsequence( "update(stilton);" );

        builder.addPackage( packageDescr );
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    }

    @Test
    public void testNumbers() throws Exception {
        // test boolean
        createLiteralRule( new ExprConstraintDescr( "booleanPrimitive == true ") );

        // test boolean
        createLiteralRule( new ExprConstraintDescr( "booleanPrimitive == false ") );

        // test char
        createLiteralRule( new ExprConstraintDescr( "charPrimitive == 'a' ") );
        createLiteralRule( new ExprConstraintDescr( "charPrimitive == \"a\" ") );

        // test byte
        createLiteralRule( new ExprConstraintDescr( "bytePrimitive == 1 ")  );
        createLiteralRule( new ExprConstraintDescr( "bytePrimitive == 0 ")  );
        createLiteralRule(  new ExprConstraintDescr( "bytePrimitive == -1 ") );

        // test short
        createLiteralRule( new ExprConstraintDescr( "shortPrimitive == 1 ")  );              
        createLiteralRule(  new ExprConstraintDescr( "shortPrimitive == 0 ")  );       
        createLiteralRule( new ExprConstraintDescr( "shortPrimitive == -1 ")  );

        // test int
        createLiteralRule( new ExprConstraintDescr( "intPrimitive == 1") );
        createLiteralRule(  new ExprConstraintDescr( "intPrimitive == 0") );
        createLiteralRule(  new ExprConstraintDescr( "intPrimitive == -1")  );

        // test long
        createLiteralRule( new ExprConstraintDescr( "longPrimitive == 1") );
        createLiteralRule( new ExprConstraintDescr( "longPrimitive == 0") );
        createLiteralRule( new ExprConstraintDescr( "longPrimitive == -1") );

        // test float
        createLiteralRule( new ExprConstraintDescr( "floatPrimitive == 1.1") );
        createLiteralRule( new ExprConstraintDescr( "floatPrimitive == 0") );
        createLiteralRule( new ExprConstraintDescr( "floatPrimitive == -1.1") );

        // test double
        createLiteralRule(  new ExprConstraintDescr( "doublePrimitive == 1.1") );
        createLiteralRule(  new ExprConstraintDescr( "doublePrimitive == 0") );
        createLiteralRule(  new ExprConstraintDescr( "doublePrimitive == -1.1") );
    }
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        pattern.addConstraint( fieldBindingDescr );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        pattern.addConstraint( new ExprConstraintDescr("price == (" + expression + ")") );

        ruleDescr.setConsequence( "update(stilton);" );
    }
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        pattern.addConstraint( fieldBindingDescr2 );

        packageDescr.addGlobal( new GlobalDescr( "map",
                                                 "java.util.Map" ) );

        pattern.addConstraint( new ExprConstraintDescr( expression ) );

        ruleDescr.setConsequence( "update(stilton);" );
    }
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        lhs.addDescr( (BaseDescr) ceDescr );

        final PatternDescr patternDescr = new PatternDescr( Cheese.class.getName(),
                                                            "stilton" );

        patternDescr.addConstraint( new ExprConstraintDescr( "type == \"stilton\" ")  );

        ceDescr.addDescr( patternDescr );

        ruleDescr.setConsequence( consequence );
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        assertEquals( "com.sample",
                          pkg.getName() );
        RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );
        assertEquals( "test",
                          rule.getName() );
        ExprConstraintDescr expr = (ExprConstraintDescr) ((PatternDescr) rule.getLhs().getDescrs().get( 0 )).getDescrs().get( 0 );
        assertEquals( "( text == null || text2 matches \"\" )",
                          expr.getText() );
    }
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                         parser.hasErrors() );

        assertNotNull( rule );

        AndDescr lhs = rule.getLhs();
        ExprConstraintDescr constr = (ExprConstraintDescr) ((PatternDescr) lhs.getDescrs().get( 0 )).getDescrs().get( 0 );

        assertEquals( "location==\"atlanta\\\"\"",
                      constr.getText() );
    }
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                     parser.hasErrors() );

        assertNotNull( rule );

        AndDescr lhs = rule.getLhs();
        ExprConstraintDescr constr = (ExprConstraintDescr) ((PatternDescr) lhs.getDescrs().get( 0 )).getDescrs().get( 1 );

        assertEquals( "type == \"s\\tti\\\"lto\\nn\"",
                      constr.getText() );
    }
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        PatternDescr pattern = (PatternDescr) lhs.getDescrs().get( 0 );
        assertEquals( 1,
                          pattern.getConstraint().getDescrs().size() );
        AndDescr fieldAnd = (AndDescr) pattern.getConstraint();
        ExprConstraintDescr fld = (ExprConstraintDescr) fieldAnd.getDescrs().get( 0 );
        assertEquals( "bar == false",
                          fld.getExpression() );

        pattern = (PatternDescr) lhs.getDescrs().get( 1 );
        assertEquals( 1,
                          pattern.getConstraint().getDescrs().size() );

        fieldAnd = (AndDescr) pattern.getConstraint();
        fld = (ExprConstraintDescr) fieldAnd.getDescrs().get( 0 );

        assertEquals( "boo > -42",
                          fld.getText() );

        pattern = (PatternDescr) lhs.getDescrs().get( 2 );
        assertEquals( 1,
                          pattern.getConstraint().getDescrs().size() );

        fieldAnd = (AndDescr) pattern.getConstraint();
        fld = (ExprConstraintDescr) fieldAnd.getDescrs().get( 0 );

        assertEquals( "boo > -42.42",
                          fld.getText() );
    }
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        assertEquals( 1,
                      first.getConstraint().getDescrs().size() );

        AndDescr fieldAnd = (AndDescr) first.getConstraint();
        ExprConstraintDescr constraint = (ExprConstraintDescr) fieldAnd.getDescrs().get( 0 );
        assertNotNull( constraint );

        assertEquals( "a==3",
                      constraint.getExpression() );

        // Check second pattern
        final PatternDescr second = (PatternDescr) lhs.getDescrs().get( 1 );
        assertEquals( "foo4",
                      second.getIdentifier() );
        assertEquals( "Bar",
                      second.getObjectType() );

        // no constraints, only a binding
        fieldAnd = (AndDescr) second.getConstraint();
        assertEquals( 1,
                      fieldAnd.getDescrs().size() );

        final ExprConstraintDescr binding = (ExprConstraintDescr) second.getConstraint().getDescrs().get( 0 );
        assertEquals( "a4:a==4",
                      binding.getExpression() );

        // Check third pattern
        final PatternDescr third = (PatternDescr) lhs.getDescrs().get( 2 );
        assertNull( third.getIdentifier() );
        assertEquals( "Baz",
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Related Classes of org.drools.compiler.lang.descr.ExprConstraintDescr

  • org.drools.compiler.builder.impl.KnowledgeBuilderTest
  • org.drools.compiler.compiler.PackageBuilderTest
  • org.drools.compiler.compiler.QueryBuilderTest
  • org.drools.compiler.compiler.xml.rules.ExprConstraintHandler
  • org.drools.compiler.compiler.xml.rules.FieldConstraintHandler
  • org.drools.compiler.compiler.xml.rules.PredicateHandler
  • org.drools.compiler.compiler.xml.rules.RestrictionConnectiveHandler
  • org.drools.compiler.compiler.xml.rules.XmlPackageReaderTest
  • org.drools.compiler.lang.api.impl.PatternDescrBuilderImpl
  • org.drools.compiler.lang.RuleParserTest
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