Package org.drools.rule

Examples of org.drools.rule.TypeDeclaration

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        public TypeDeclaration candidate = null;
        public int             score     = Integer.MAX_VALUE;
    }

    public TypeDeclaration getTypeDeclaration(Class< ? > clazz) {
        TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( clazz );
        if ( typeDeclaration == null ) {
            // check super classes and keep a score of how up in the hierarchy is there a declaration
            TypeDeclarationCandidate candidate = checkSuperClasses( clazz );
            // now check interfaces
            candidate = checkInterfaces( clazz,
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        return typeDeclaration;
    }

    private TypeDeclarationCandidate checkSuperClasses(Class< ? > clazz) {
        TypeDeclarationCandidate candidate = null;
        TypeDeclaration typeDeclaration = null;
        Class< ? > current = clazz.getSuperclass();
        int score = 0;
        while ( typeDeclaration == null && current != null ) {
            score++;
            typeDeclaration = this.classTypeDeclaration.get( current );
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    private TypeDeclarationCandidate checkInterfaces(Class< ? > clazz,
                                                     TypeDeclarationCandidate baseline,
                                                     int level) {
        TypeDeclarationCandidate candidate = null;
        TypeDeclaration typeDeclaration = null;
        if ( baseline == null || level < baseline.score ) {
            // search
            for ( Class< ? > ifc : clazz.getInterfaces() ) {
                typeDeclaration = this.classTypeDeclaration.get( ifc );
                if ( typeDeclaration != null ) {
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            setDeclaredMask( Long.MAX_VALUE );
            return;
        }

        Class objectClass = ((ClassObjectType)objectType).getClassType();
        TypeDeclaration typeDeclaration = context.getRuleBase().getTypeDeclaration(objectClass);
        if (  typeDeclaration == null || !typeDeclaration.isPropertyReactive() ) {
            // if property specific is not on, then accept all modification propagations
            setDeclaredMask( Long.MAX_VALUE );
        } else  {
            List<String> settableProperties = getSettableProperties(context.getRuleBase(), objectClass);
            setDeclaredMask( calculatePositiveMask(pattern.getListenedProperties(), settableProperties) );
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    }

    protected  <K> ClassDefinition lookupClassDefinition( K core ) {
        Package pack = this.getWorkingMemory().getRuleBase().getPackage( core.getClass().getPackage().getName() );
        if ( pack != null ) {
            TypeDeclaration decl = pack.getTypeDeclaration( core.getClass() );
            if ( decl != null ) {
                return decl.getTypeClassDef();
            }
        }
        return null;
    }
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        init();
    }

    private void init() {
        TypeDeclaration thingType = new TypeDeclaration( Thing.class.getName() );
        thingType.setKind( TypeDeclaration.Kind.TRAIT );
        thingType.setTypeClass( Thing.class );
        ClassDefinition def = new ClassDefinition();
        def.setClassName( thingType.getTypeClass().getName() );
        def.setDefinedClass( Thing.class );
        addTrait( def );

        ClassDefinition individualDef = new ClassDefinition();
        individualDef.setClassName( Entity.class.getName() );
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                        // add type declarations
                        for ( TypeDeclaration newDecl : newPkg.getTypeDeclarations().values() ) {
                            lastType = newDecl.getTypeClassName();


                            TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( newDecl.getTypeClassName() );
                            if ( typeDeclaration == null ) {
                                String className = newDecl.getTypeClassName();

                                byte [] def = ((JavaDialectRuntimeData) newPkg.getDialectRuntimeRegistry().getDialectData( "java" )).getClassDefinition(
                                        JavaDialectRuntimeData.convertClassToResourcePath( className )
                                );

                                Class<?> definedKlass = registerAndLoadTypeDefinition( className, def );

                                if ( definedKlass == null && typeDeclaration.isNovel() ) {
                                    throw new RuntimeException( "Registering null bytes for class " + className );
                                }


                                newDecl.getTypeClassDef().setDefinedClass( definedKlass );
                                newDecl.setTypeClass( definedKlass );

                                this.classTypeDeclaration.put( className, newDecl );
                                typeDeclaration = newDecl;
                            } else {
                                Class<?> definedKlass = typeDeclaration.getTypeClass();

                                newDecl.getTypeClassDef().setDefinedClass( definedKlass );
                                newDecl.setTypeClass( definedKlass );

                                mergeTypeDeclarations( typeDeclaration,
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        public TypeDeclaration candidate = null;
        public int             score     = Integer.MAX_VALUE;
    }

    public TypeDeclaration getTypeDeclaration( Class<?> clazz ) {
        TypeDeclaration typeDeclaration = this.classTypeDeclaration.get( clazz.getName() );
        if (typeDeclaration == null) {
            // check super classes and keep a score of how up in the hierarchy is there a declaration
            TypeDeclarationCandidate candidate = checkSuperClasses( clazz );
            // now check interfaces
            candidate = checkInterfaces( clazz,
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        return typeDeclaration;
    }

    private TypeDeclarationCandidate checkSuperClasses( Class<?> clazz ) {

        TypeDeclaration typeDeclaration = null;
        Class<?> current = clazz.getSuperclass();
        int score = 0;
        while ( typeDeclaration == null && current != null ) {
            score++;
            typeDeclaration = this.classTypeDeclaration.get( current.getName() );
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            TypeDeclarationCandidate baseline,
            int level ) {
        TypeDeclarationCandidate candidate = null;
        if (baseline == null || level < baseline.score) {
            // search
            TypeDeclaration typeDeclaration;
            for (Class<?> ifc : clazz.getInterfaces()) {
                typeDeclaration = this.classTypeDeclaration.get( ifc.getName() );
                if (typeDeclaration != null) {
                    candidate = new TypeDeclarationCandidate();
                    candidate.candidate = typeDeclaration;
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Related Classes of org.drools.rule.TypeDeclaration

  • org.drools.base.ClassObjectType
  • org.drools.base.DefaultKnowledgeHelper
  • org.drools.base.ModifyInterceptor
  • org.drools.common.AbstractRuleBase
  • org.drools.compiler.PackageBuilder
  • org.drools.compiler.PackageBuilderTest
  • org.drools.compiler.TypeDeclarationMergingTest
  • org.drools.compiler.TypeDeclarationTest
  • org.drools.factmodel.MapCore
  • org.drools.factmodel.traits.TraitField
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