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

     */
    public JavaType getJavaTypeInternal(Class clazz)
    {
        String name = clazz.getName();
        synchronized (types) {
            JavaType javaType = (JavaType)types.get(name);
            if (javaType == null) {
                javaType = newJavaTypeInstance(clazz);
                types.put(name, javaType);
            }
            return javaType;

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            // return objectIdClass if explicitly set by the setter
            return objectIdClass;
        }


        // not set => try to resolve ObjectId class 
        JavaType type = null;
        String name = getDeclaredObjectIdClassName();
        if (name != null) {
            JavaModel javaModel = getDeclaringModel().getJavaModel();
            type = javaModel.getJavaType(name);
            if (Modifier.isAbstract(type.getModifiers()))
                // do not return ObjectId class if abstract
                type = null;
        }
        else {
            JDOClass superclass = getPersistenceCapableSuperclass();

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        if (declaredObjectIdClassName != null) {
            // ObjectId is declared, but it might not be qualified
            int index = declaredObjectIdClassName.indexOf('.');
            if (index == -1) {
                // not qualified => try to resolve it
                JavaType type = TypeSupport.resolveType(getDeclaringModel(), 
                    declaredObjectIdClassName, getPackagePrefix());
                if (type == null) {
                    throw new ModelFatalException(
                        msg.msg("EXC_CannotResolveObjectIdClass", //NOI18N
                                declaredObjectIdClassName, getName()));
                }
                this.declaredObjectIdClassName = type.getName();
            }
        }
        else {
            // not declared, check for single field ObjectId class
            JDOField[] declaredPKFields = getDeclaredPrimaryKeyFields();
            if ((declaredPKFields != null) && (declaredPKFields.length == 1)) {
                // there is one pk field declared by this class => 
                // check the type
                JavaType fieldType = declaredPKFields[0].getType();
                if (fieldType != null) {
                    return TypeSupport.getSingleFieldObjectIdClassName(
                        fieldType.getName());
                }
            }
        }
        return declaredObjectIdClassName;
    }

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        if (pcSuperclassName != null) {
            // pcSuperclassName is declared, but it might not be qualified
            int index = pcSuperclassName.indexOf('.');
            if (index == -1) {
                // not qualified => try to resolve it
                JavaType type = TypeSupport.resolveType(getDeclaringModel(),
                    pcSuperclassName, getPackagePrefix());
                if (type == null) {
                    throw new ModelFatalException(
                        msg.msg("EXC_CannotResolvePCSuperClass", //NOI18N
                                pcSuperclassName, getName()));
                }
                this.pcSuperclassName = type.getName();
            }
        }
        return pcSuperclassName;
    }

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        }
        
        // not set => try to resolve persistence capable superclass
        String name = getPersistenceCapableSuperclassName();
        if (pcSuperclassName != null) {
            JavaType type = TypeSupport.resolveType(
                getDeclaringModel(), pcSuperclassName, getPackagePrefix());
            if (type == null) {
                throw new ModelFatalException(
                    msg.msg("EXC_CannotResolvePCSuperClass", //NOI18N
                            pcSuperclassName, getName()));
            }
            JDOClass jdoClass = type.getJDOClass();
            // pcSuperclassName might be unqualified
            this.pcSuperclassName = type.getName();
            return jdoClass;
        }


        return null;
    }

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

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

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

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

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            // return javaProperty, if explicitly set by the setter
            return javaProperty;
        }
        
        // not set => calculate
        JavaType javaType = getDeclaringClass().getJavaType();
        return javaType.getJavaProperty(getName());
    }

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