org.apache.myfaces.extensions.validator.util
Class ExtValAnnotationUtils

java.lang.Object
  org.apache.myfaces.extensions.validator.util.ExtValAnnotationUtils

public class ExtValAnnotationUtils
extends Object

Contains helper methods which are dealing with general tasks liked to annotation

Since:

r4

Author:

Gerhard Petracek

Constructor Summary

ExtValAnnotationUtils()

Method Summary

static void	addFieldAccessAnnotations(PropertyStorage storage, Class entity, String property, PropertyInformation propertyInformation) Extracts all annotations found at the field of the property.
static void	addPropertyAccessAnnotations(PropertyStorage storage, Class entity, String property, PropertyInformation propertyInformation) Extracts all annotations found at the getter method of a property.
static PropertyInformation	extractAnnotations(Class entityClass, PropertyDetails propertyDetails) Extracts all annotations found on a property.
static <T> T	extractValueOf(Annotation annotation, Class<T> targetClass) Extracts the value of the given annotation.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExtValAnnotationUtils

public ExtValAnnotationUtils()

Method Detail

extractAnnotations

public static PropertyInformation extractAnnotations(Class entityClass,
                                                     PropertyDetails propertyDetails)

Extracts all annotations found on a property. It looks for them on getter method, the field and all getters that are defined in interfaces. The name of the target property is provided by the propertyDetails parameter.

Parameters:

entityClass - target class which has to be scanned

propertyDetails - information about the property

Returns:

a datastructure which contains all information about the target-property

addPropertyAccessAnnotations

public static void addPropertyAccessAnnotations(PropertyStorage storage,
                                                Class entity,
                                                String property,
                                                PropertyInformation propertyInformation)

Extracts all annotations found at the getter method of a property. The annotations are added to the given propertyInformation parameter.

Parameters:

storage - PropertyStorage which is able to cache information of a property

entity - target class which has to be scanned

property - Name of the property we are interested in.

propertyInformation - Where the MetaDataEntries for the annotations are added.

addFieldAccessAnnotations

public static void addFieldAccessAnnotations(PropertyStorage storage,
                                             Class entity,
                                             String property,
                                             PropertyInformation propertyInformation)

Extracts all annotations found at the field of the property. A field name with a _ (underscore) as prefix is also supported. The annotations are added to the given propertyInformation parameter.

Parameters:

storage - PropertyStorage which is able to cache information of a property

entity - target class which has to be scanned

property - Name of the property we are interested in.

propertyInformation - Where the MetaDataEntries for the annotations are added.

extractValueOf

public static <T> T extractValueOf(Annotation annotation,
                                   Class<T> targetClass)

Extracts the value of the given annotation.

Type Parameters:

T - Result class

Parameters:

annotation - The target annotation

targetClass - Type of the value-property

Returns:

value of the value-property