Examples of org.apache.jdo.model.java.JavaType

org.apache.jdo.model.java.JavaType
A JavaType instance represents a type as defined in the Java language. The interface defines interrogative methods to check whether a type is primitive, an interface or array, is a JDO supported collection or map, is a value or trackable class, is a persistence capable class, etc. Furthermore it defines methods to get detailed information about the type such as name, modifiers, superclass and the JDO meta data if this type represent a persistence capable class.
Different environments (runtime, enhancer, development) will have different JavaType implementations to provide answers to the various methods. @author Michael Bouschen @since JDO 1.0.1

            }


            // field not known by JDOClass (not specified in JDO XML)
            // apply model's method of default calculation without
            // changing the model's state
            JavaType fieldType = javaModel.getJavaType(javaModel.getTypeName(fieldSig));
            affirm(fieldType != null, 
                   "cannot get java type for: " + fieldSig);
            return !TypeSupport.isPersistenceFieldType(fieldType);
        } catch (ModelFatalException ex) {
            throw new EnhancerMetaDataUserException(ex);

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            // return embeddedElement, if explicitly set by the setter
            return embeddedElement.booleanValue();
        }
        
        // not set => calculate
        JavaType type = getElementType();
        return (type != null) ? 
            TypeSupport.isEmbeddedElementType(type) : false;
    }

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            // return elementType, if explicitly set by the setter
            return elementType;
        }
    
        // not set => calculate
        JavaType type = null;
        if (elementTypeName != null) {
            JDOField jdoField = getDeclaringField();
            JDOClass jdoClass = jdoField.getDeclaringClass();
            JDOModel jdoModel = jdoClass.getDeclaringModel();
            type = TypeSupport.resolveType(jdoModel, elementTypeName,

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     * Get the JDOClass corresponding to the type or element of this 
     * relationship.
     * @return the related class
     */
    public JDOClass getRelatedJDOClass() {
        JavaType relatedType = getRelatedJavaType();


        if (relatedType != null) {
            JDOClass myClass = getDeclaringField().getDeclaringClass();
            String relatedTypeName = relatedType.getName();


            if (relatedTypeName.equals(myClass.getName()))
                return myClass;
        
            return myClass.getDeclaringModel().getJDOClass(relatedTypeName);

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        if (field != null) {
            return new BaseReflectionJavaField(field, this);
        }
        
        // check superclass, if available and other than Object
        JavaType superclass = getSuperclass();
        if ((superclass != null) && (superclass != PredefinedType.objectType)) {
            return superclass.getJavaField(fieldName);
        }
        
        return null;
    }

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     * @return the JavaType representing the component type of this
     * JavaType if this class is an array; <code>null</code> otherwise. 
     */ 
    public JavaType getArrayComponentType()
    {
        JavaType componentType = null;
        if (isArray()) {
            Class componentClass = clazz.getComponentType();
            if (componentClass != null)
                componentType = getJavaTypeForClass(componentClass);
        }

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    public JavaField getJavaField(String fieldName) 
    { 
        JavaField javaField = getDeclaredJavaField(fieldName);
        if (javaField == null) {
            // check superclass
            JavaType superclass = getSuperclass();
            if ((superclass != null) &&
                (superclass != PredefinedType.objectType)) {
                javaField = superclass.getJavaField(fieldName);
            }
        }
        return javaField;
    }

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    public JavaProperty getJavaProperty(String name)
    {
        JavaProperty javaProperty = getDeclaredJavaProperty(name);
        if (javaProperty == null) {
            // check superclass
            JavaType superclass = getSuperclass();
            if ((superclass != null) &&
                (superclass != PredefinedType.objectType)) {
                javaProperty = superclass.getJavaProperty(name);
            }
        }
        return javaProperty;
    }

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        if (descrs != null) {
            for (int i = 0; i < descrs.length; i++) {
                PropertyDescriptor descr = descrs[i];
                if (descr == null) continue;
                String name = descr.getName();
                JavaType type = 
                    beanClass.getJavaTypeForClass(descr.getPropertyType());
                Method getter = descr.getReadMethod();
                JavaMethod javaGetter = (getter == null) ? null : 
                    beanClass.createJavaMethod(getter);
                Method setter = descr.getWriteMethod();

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     * <code>null</code> if not present in this model instance.
     */
    public JavaType getJavaType(String name) 
    {
        synchronized (types) {
            JavaType javaType = (JavaType)types.get(name);
            if (javaType == null) {
                try {
                    final boolean initialize = false; 
                    Class clazz = ReflectionJavaModelFactory.forNamePrivileged(
                        name, initialize, classLoader);

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