public final class ReflectHelper extends Object
Modifier and Type | Field and Description |
---|---|
static Class[] |
NO_PARAM_SIGNATURE |
static Object[] |
NO_PARAMS |
static Class[] |
SINGLE_OBJECT_PARAM_SIGNATURE |
Modifier and Type | Method and Description |
---|---|
static Class |
classForName(String name)
Deprecated.
Depending on context, either
ClassLoaderService
or ClassLoaderAccess should be preferred |
static Class |
classForName(String name,
Class caller)
Perform resolution of a class name.
|
static Method |
extractEqualsMethod(Class clazz)
Encapsulation of getting hold of a class's
equals method. |
static Method |
extractHashCodeMethod(Class clazz)
Encapsulation of getting hold of a class's
hashCode method. |
static Field |
findField(Class containerClass,
String propertyName) |
static Method |
findGetterMethod(Class containerClass,
String propertyName) |
static Method |
findSetterMethod(Class containerClass,
String propertyName,
Class propertyType) |
static Object |
getConstantValue(String name,
ClassLoaderService classLoaderService) |
static Constructor |
getConstructor(Class clazz,
Type[] types)
Retrieve a constructor for the given class, with arguments matching the specified Hibernate mapping
types . |
static <T> Constructor<T> |
getDefaultConstructor(Class<T> clazz)
Retrieve the default (no arg) constructor from the given class.
|
static Method |
getMethod(Class clazz,
Method method) |
static boolean |
implementsInterface(Class clazz,
Class intf)
Determine if the given class implements the given interface.
|
static boolean |
isAbstractClass(Class clazz)
Determine if the given class is declared abstract.
|
static boolean |
isFinalClass(Class clazz)
Determine is the given class is declared final.
|
static boolean |
isPublic(Class clazz,
Member member)
Is this member publicly accessible.
|
static boolean |
overridesEquals(Class clazz)
Determine if the given class defines an
Object.equals(java.lang.Object) override. |
static boolean |
overridesHashCode(Class clazz)
Determine if the given class defines a
Object.hashCode() override. |
static Class |
reflectedPropertyClass(Class clazz,
String name)
Attempt to resolve the specified property type through reflection.
|
static Class |
reflectedPropertyClass(String className,
String name,
ClassLoaderService classLoaderService)
Attempt to resolve the specified property type through reflection.
|
public static final Class[] NO_PARAM_SIGNATURE
public static final Object[] NO_PARAMS
public static final Class[] SINGLE_OBJECT_PARAM_SIGNATURE
public static Method extractEqualsMethod(Class clazz) throws NoSuchMethodException
equals
method.clazz
- The class from which to extract the equals method.NoSuchMethodException
- Should indicate an attempt to extract equals method from interface.public static Method extractHashCodeMethod(Class clazz) throws NoSuchMethodException
hashCode
method.clazz
- The class from which to extract the hashCode method.NoSuchMethodException
- Should indicate an attempt to extract hashCode method from interface.public static boolean overridesEquals(Class clazz)
Object.equals(java.lang.Object)
override.clazz
- The class to checkpublic static boolean overridesHashCode(Class clazz)
Object.hashCode()
override.clazz
- The class to checkpublic static boolean implementsInterface(Class clazz, Class intf)
clazz
- The class to checkintf
- The interface to check it against.public static Class classForName(String name, Class caller) throws ClassNotFoundException
Class.forName(String, boolean, ClassLoader)
using the caller's classloadername
- The class namecaller
- The class from which this call originated (in order to access that class's loader).ClassNotFoundException
- From Class.forName(String, boolean, ClassLoader)
.@Deprecated public static Class classForName(String name) throws ClassNotFoundException
ClassLoaderService
or ClassLoaderAccess
should be preferredclassForName(String, Class)
except that here we delegate to
Class.forName(String)
if the context classloader lookup is unsuccessful.name
- The class nameClassNotFoundException
- From Class.forName(String)
.public static boolean isPublic(Class clazz, Member member)
clazz
- The class which defines the membermember
- The memeber.public static Class reflectedPropertyClass(String className, String name, ClassLoaderService classLoaderService) throws MappingException
className
- The name of the class owning the property.name
- The name of the property.classLoaderService
- ClassLoader servicesMappingException
- Indicates we were unable to locate the property.public static Class reflectedPropertyClass(Class clazz, String name) throws MappingException
clazz
- The class owning the property.name
- The name of the property.MappingException
- Indicates we were unable to locate the property.public static Object getConstantValue(String name, ClassLoaderService classLoaderService)
public static <T> Constructor<T> getDefaultConstructor(Class<T> clazz) throws PropertyNotFoundException
clazz
- The class for which to retrieve the default ctor.PropertyNotFoundException
- Indicates there was not publicly accessible, no-arg constructor (todo : why PropertyNotFoundException???)public static boolean isAbstractClass(Class clazz)
clazz
- The class to check.public static boolean isFinalClass(Class clazz)
clazz
- The class to check.public static Constructor getConstructor(Class clazz, Type[] types) throws PropertyNotFoundException
types
.clazz
- The class needing instantiationtypes
- The types representing the required ctor param signaturePropertyNotFoundException
- Indicates we could not locate an appropriate constructor (todo : again with PropertyNotFoundException???)Copyright © 2001-2017 Red Hat, Inc. All Rights Reserved.