Package org.drools.lang.descr

Examples of org.drools.lang.descr.PatternDescr

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                      pkg.getRules().size() );
        final RuleDescr rule = (RuleDescr) pkg.getRules().get( 0 );

        assertEquals( 1,
                      rule.getLhs().getDescrs().size() );
        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );

        assertNotNull( pattern );
        assertEquals( "Bar",
                      pattern.getObjectType() );
        assertEquals( "foo3",
                      pattern.getIdentifier() );

    }
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        final AndDescr lhs = rule.getLhs();
        assertEquals( 3,
                      lhs.getDescrs().size() );

        PatternDescr pattern = (PatternDescr) lhs.getDescrs().get( 0 );
        assertEquals( 1,
                      pattern.getConstraint().getDescrs().size() );
        AndDescr fieldAnd = (AndDescr) pattern.getConstraint();
        FieldConstraintDescr fld = (FieldConstraintDescr) fieldAnd.getDescrs().get( 0 );
        LiteralRestrictionDescr lit = (LiteralRestrictionDescr) fld.getRestrictions().get( 0 );

        assertEquals( "==",
                      lit.getEvaluator() );
        assertEquals( "false",
                      lit.getText() );
        assertEquals( "bar",
                      fld.getFieldName() );

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

        fieldAnd = (AndDescr) pattern.getConstraint();
        fld = (FieldConstraintDescr) fieldAnd.getDescrs().get( 0 );
        lit = (LiteralRestrictionDescr) fld.getRestrictions().get( 0 );

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

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

        //lit = (LiteralDescr) col.getDescrs().get( 0 );

        fieldAnd = (AndDescr) pattern.getConstraint();
        fld = (FieldConstraintDescr) fieldAnd.getDescrs().get( 0 );
        lit = (LiteralRestrictionDescr) fld.getRestrictions().get( 0 );
        assertEquals( ">",
                      lit.getEvaluator() );
        assertEquals( "-42.42",
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        assertEquals( "simple rule",
                      ruleDescr.getName() );
        assertNotNull( ruleDescr.getLhs() );
        assertEquals( 1,
                      ruleDescr.getLhs().getDescrs().size() );
        final PatternDescr patternDescr = (PatternDescr) ruleDescr.getLhs().getDescrs().get( 0 );
        assertEquals( 0,
                      patternDescr.getConstraint().getDescrs().size() ); //this may be null, not sure as the test doesn't get this far...
        assertEquals( "Cheese",
                      patternDescr.getObjectType() );

    }
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    }

    public void testSimpleMethodCallWithFrom() throws Exception {

        final RuleDescr rule = parseResource( "test_SimpleMethodCallWithFrom.drl" ).rule();
        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final FromDescr from = (FromDescr) pattern.getSource();
        final AccessorDescr method = (AccessorDescr) from.getDataSource();

        assertFalse( this.parser.getErrorMessages().toString(),
                     this.parser.hasErrors() );
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    }

    public void testSimpleFunctionCallWithFrom() throws Exception {

        final RuleDescr rule = parseResource( "test_SimpleFunctionCallWithFrom.drl" ).rule();
        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final FromDescr from = (FromDescr) pattern.getSource();
        final AccessorDescr func = (AccessorDescr) from.getDataSource();

        assertFalse( this.parser.getErrorMessages().toString(),
                     this.parser.hasErrors() );
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    }

    public void testSimpleAccessorWithFrom() throws Exception {

        final RuleDescr rule = parseResource( "test_SimpleAccessorWithFrom.drl" ).rule();
        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final FromDescr from = (FromDescr) pattern.getSource();
        final AccessorDescr accessor = (AccessorDescr) from.getDataSource();

        assertFalse( this.parser.getErrorMessages().toString(),
                     this.parser.hasErrors() );
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    }

    public void testSimpleAccessorAndArgWithFrom() throws Exception {

        final RuleDescr rule = parseResource( "test_SimpleAccessorArgWithFrom.drl" ).rule();
        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final FromDescr from = (FromDescr) pattern.getSource();
        final AccessorDescr accessor = (AccessorDescr) from.getDataSource();

        assertFalse( this.parser.getErrorMessages().toString(),
                     this.parser.hasErrors() );
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                      accessor.toString() );
    }

    public void testComplexChainedAcessor() throws Exception {
        final RuleDescr rule = parseResource( "test_ComplexChainedCallWithFrom.drl" ).rule();
        final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get( 0 );
        final FromDescr from = (FromDescr) pattern.getSource();
        final AccessorDescr accessor = (AccessorDescr) from.getDataSource();

        assertFalse( this.parser.getErrorMessages().toString(),
                     this.parser.hasErrors() );
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                      lhs.getDescrs().size() );

        //System.err.println( lhs.getDescrs() );

        // Check first pattern
        final PatternDescr first = (PatternDescr) lhs.getDescrs().get( 0 );
        assertEquals( "foo3",
                      first.getIdentifier() );
        assertEquals( "Bar",
                      first.getObjectType() );

        assertEquals( 1,
                      first.getConstraint().getDescrs().size() );

        AndDescr fieldAnd = (AndDescr) first.getConstraint();
        FieldConstraintDescr fld = (FieldConstraintDescr) fieldAnd.getDescrs().get( 0 );
        LiteralRestrictionDescr constraint = (LiteralRestrictionDescr) fld.getRestrictions().get( 0 );

        assertNotNull( constraint );

        assertEquals( "a",
                      fld.getFieldName() );
        assertEquals( "==",
                      constraint.getEvaluator() );
        assertEquals( "3",
                      constraint.getText() );

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

        //System.err.println( second.getDescrs() );

        fieldAnd = (AndDescr) second.getConstraint();
        assertEquals( 2,
                      fieldAnd.getDescrs().size() );

        final FieldBindingDescr fieldBindingDescr = (FieldBindingDescr) fieldAnd.getDescrs().get( 0 );
        assertEquals( "a",
                      fieldBindingDescr.getFieldName() );
        assertEquals( "a4",
                      fieldBindingDescr.getIdentifier() );

        fld = (FieldConstraintDescr) fieldAnd.getDescrs().get( 1 );
        constraint = (LiteralRestrictionDescr) fld.getRestrictions().get( 0 );

        assertNotNull( constraint );

        assertEquals( "a",
                      fld.getFieldName() );
        assertEquals( "==",
                      constraint.getEvaluator() );
        assertEquals( "4",
                      constraint.getText() );

        // Check third pattern
        final PatternDescr third = (PatternDescr) lhs.getDescrs().get( 2 );
        assertNull( third.getIdentifier() );
        assertEquals( "Baz",
                      third.getObjectType() );

        assertEqualsIgnoreWhitespace( "if ( a == b ) { " + "  assert( foo3 );" + "} else {" + "  retract( foo4 );" + "}" + "  System.out.println( a4 );",
                                      (String) rule.getConsequence() );

        assertFalse( this.parser.hasErrors() );
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                for ( String name : inspector.getGetterMethods().keySet() ) {
                    // classFieldAccessor requires both getter and setter
                    if ( inspector.getSetterMethods().containsKey(name) ) {
                        if ( !inspector.isNonGetter( name ) && !"class".equals( name ) ) {
                            TypeFieldDescr inheritedFlDescr = new TypeFieldDescr( name,
                                    new PatternDescr( inspector.getFieldTypes().get( name ).getName() ) );
                            inheritedFlDescr.setInherited( true );
                            inheritedFlDescr.setIndex( inspector.getFieldNames().size() + inspector.getFieldNames().get( name ) );

                            if ( !fieldMap.containsKey( inheritedFlDescr.getFieldName() ) ) fieldMap.put( inheritedFlDescr.getFieldName(),
                                    inheritedFlDescr );
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Related Classes of org.drools.lang.descr.PatternDescr

  • org.drools.clips.LhsClpParserTest
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.PackageBuilderTest
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  • org.drools.compiler.xml.rules.AccumulateHandler
  • org.drools.compiler.xml.rules.CollectHandler
  • org.drools.compiler.xml.rules.ExprConstraintHandler
  • org.drools.compiler.xml.rules.FieldBindingHandler
  • org.drools.compiler.xml.rules.FieldConstraintHandler
  • org.drools.compiler.xml.rules.FromHandler
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