org.beanfabrics.util
Class ReflectionUtil

java.lang.Object
  org.beanfabrics.util.ReflectionUtil

public class ReflectionUtil
extends java.lang.Object

The ReflectionUtil is a utility class for doing reflection.

Nested Class Summary

static interface	ReflectionUtil.FieldFilter
static interface	ReflectionUtil.MethodFilter

Constructor Summary

ReflectionUtil()

Method Summary

static void	callAnnotatedMethods(java.lang.Object target, java.lang.Class annotationType) Calls all methods of target that are annotated with the specified annotationType.
static java.util.List<java.lang.Class>	getAllClasses(java.lang.Class baseClass) Returns a List of all superclasses and all interfaces of the given baseclass, including the baseclass.
static java.util.List<java.lang.reflect.Field>	getAllFields(java.lang.Class cls) Returns all declared fields of the given Class and it's superclasses.
static java.util.List<java.lang.reflect.Field>	getAllFields(java.lang.Class cls, java.lang.Class annoType)
static java.util.List<java.lang.reflect.Field>	getAllFields(java.lang.Class cls, java.lang.String fieldName, java.lang.Class fieldType) Returns all declared fields of the given Class and it's superclasses that have the given name and are assignable to the given type.
static java.util.List<java.lang.reflect.Member>	getAllMembers(java.lang.Class cls) Returns all declared members of the given Class and it's superclasses.
static java.util.List<java.lang.reflect.Method>	getAllMethods(java.lang.Class cls) Returns all declared methods of the given Class and it's superclasses.
static java.util.List<java.lang.reflect.Method>	getAllMethods(java.lang.Class cls, java.lang.Class annotationType) Returns all Methods of the given Class and it's superclasses which are annotated with the given annotationType.
static java.util.Collection<java.lang.reflect.Method>	getAllMethods(java.lang.Class cls, java.lang.String methodName, java.lang.Class[] parameterTypes, java.lang.Class returnType) Returns all declared methods of the given Class and it's superclasses that have the given name and have a return type assignable to the given type.
static java.lang.Object	getFieldValue(java.lang.Object owner, java.lang.reflect.Field f)
static java.lang.Object	invokeMethod(java.lang.Object owner, java.lang.reflect.Method m, java.lang.Object... args)
static <T> T	newInstance(java.lang.Class<T> cls)
static void	setFieldValue(java.lang.Object owner, java.lang.reflect.Field field, java.lang.Object value)
static void	setProperties(java.lang.Object bean, java.util.Properties props)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReflectionUtil

public ReflectionUtil()

Method Detail

getAllFields

public static java.util.List<java.lang.reflect.Field> getAllFields(java.lang.Class cls)

Returns all declared fields of the given Class and it's superclasses.

getAllFields

public static java.util.List<java.lang.reflect.Field> getAllFields(java.lang.Class cls,
                                                                   java.lang.String fieldName,
                                                                   java.lang.Class fieldType)

Returns all declared fields of the given Class and it's superclasses that have the given name and are assignable to the given type.

Parameters:

cls - the class that owns the returned fields

fieldName - name of the returned fields or null for no name filtering

fieldType - the generic type of the returned fields or null for no type filtering

Returns:

all declared fields that match the given filter arguments

getAllFields

public static java.util.List<java.lang.reflect.Field> getAllFields(java.lang.Class cls,
                                                                   java.lang.Class annoType)

getAllMembers

public static java.util.List<java.lang.reflect.Member> getAllMembers(java.lang.Class cls)

Returns all declared members of the given Class and it's superclasses.

Parameters:

cls - the class of which to search the members

getAllMethods

public static java.util.List<java.lang.reflect.Method> getAllMethods(java.lang.Class cls)

Returns all declared methods of the given Class and it's superclasses.

Parameters:

cls - the class of which to search the methods

getAllMethods

public static java.util.Collection<java.lang.reflect.Method> getAllMethods(java.lang.Class cls,
                                                                           java.lang.String methodName,
                                                                           java.lang.Class[] parameterTypes,
                                                                           java.lang.Class returnType)

Returns all declared methods of the given Class and it's superclasses that have the given name and have a return type assignable to the given type.

Parameters:

cls - the class that owns the returned methods

methodName - name of the returned methods or null for no name filtering

parameterTypes - the parameter types of the returned methods or null for no parameter types filtering

returnType - the generic type of the returned methods or null for no type filtering

Returns:

all declared methods that match the given filter arguments

getAllMethods

public static java.util.List<java.lang.reflect.Method> getAllMethods(java.lang.Class cls,
                                                                     java.lang.Class annotationType)

Returns all Methods of the given Class and it's superclasses which are annotated with the given annotationType.

Parameters:

cls - the class of which to search the methods

annotationType - the annotation type which mark methods to be contained in the result

getAllClasses

public static java.util.List<java.lang.Class> getAllClasses(java.lang.Class baseClass)

Returns a List of all superclasses and all interfaces of the given baseclass, including the baseclass.

Parameters:

baseClass -

Returns:

List

callAnnotatedMethods

public static void callAnnotatedMethods(java.lang.Object target,
                                        java.lang.Class annotationType)

Calls all methods of target that are annotated with the specified annotationType.

Parameters:

target - the Object to call the methods from

annotationType - the type of the annotation marking the methods to call

setProperties

public static void setProperties(java.lang.Object bean,
                                 java.util.Properties props)
                          throws java.lang.IllegalArgumentException,
                                 java.lang.IllegalAccessException,
                                 java.lang.reflect.InvocationTargetException,
                                 java.lang.SecurityException,
                                 java.lang.NoSuchMethodException

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.lang.SecurityException

java.lang.NoSuchMethodException

setFieldValue

public static void setFieldValue(java.lang.Object owner,
                                 java.lang.reflect.Field field,
                                 java.lang.Object value)
                          throws java.lang.IllegalArgumentException,
                                 java.lang.IllegalAccessException

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

getFieldValue

public static java.lang.Object getFieldValue(java.lang.Object owner,
                                             java.lang.reflect.Field f)
                                      throws java.lang.IllegalArgumentException,
                                             java.lang.IllegalAccessException

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

invokeMethod

public static java.lang.Object invokeMethod(java.lang.Object owner,
                                            java.lang.reflect.Method m,
                                            java.lang.Object... args)
                                     throws java.lang.IllegalArgumentException,
                                            java.lang.IllegalAccessException,
                                            java.lang.reflect.InvocationTargetException

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

newInstance

public static <T> T newInstance(java.lang.Class<T> cls)
                     throws java.lang.IllegalArgumentException,
                            java.lang.IllegalAccessException,
                            java.lang.reflect.InvocationTargetException,
                            java.lang.SecurityException,
                            java.lang.NoSuchMethodException,
                            java.lang.InstantiationException

Throws:

java.lang.IllegalArgumentException

java.lang.IllegalAccessException

java.lang.reflect.InvocationTargetException

java.lang.SecurityException

java.lang.NoSuchMethodException

java.lang.InstantiationException