public
class
ReflectionHelper
extends Object| java.lang.Object | |
| ↳ | com.pnfsoftware.jeb.util.reflect.ReflectionHelper |
Class Overview
Helper routines using the Java Reflection API.
Summary
| Public Constructors | |||||||||||
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| ReflectionHelper() | |||||||||||
| Public Methods | |||||||||||
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| static Object | get2(Field f, Object o) | ||||||||||
| static boolean | hasNoArgConstructor(Class<?> c) | ||||||||||
| static <T> T | instantiateSafe(Class<? extends T> c) | ||||||||||
| static Object | invoke2(Method m, Object o, Object... args) | ||||||||||
| static <T> boolean |
isInstance(Object o, Collection<Class<? extends T>> classObjects)
A multi-element variant of
isInstance(Object). | ||||||||||
| static boolean |
isInstance(Object o, Class...<?> classObjects)
A multi-element variant of
isInstance(Object). | ||||||||||
| static Object | newInstance2(Constructor<?> constructor) | ||||||||||
| static Class<?> |
reduceDimensions(Class<?> c)
Reduce dimensions of an array type.
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| static Class<?> |
removeDimensions(Class<?> c)
Remove dimensions of an array type.
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| static void | set2(Field f, Object o, Object value) | ||||||||||
| static boolean |
subtypeOf(Class<?> c, Class<?> parent)
Determine if a type is a descendant of the provided ancestor.
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[Expand]
Inherited Methods | |||||||||||
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From class
java.lang.Object
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Public Constructors
public ReflectionHelper ()
Public Methods
public static Object get2 (Field f, Object o)
Throws
| IllegalAccessException | |
|---|---|
| IllegalArgumentException |
public static boolean hasNoArgConstructor (Class<?> c)
public static T instantiateSafe (Class<? extends T> c)
public static Object invoke2 (Method m, Object o, Object... args)
Throws
| IllegalAccessException | |
|---|---|
| IllegalArgumentException | |
| InvocationTargetException |
public static boolean isInstance (Object o, Collection<Class<? extends T>> classObjects)
A multi-element variant of isInstance(Object).
Parameters
| o | the object to be tested |
|---|---|
| classObjects | a collection of Class objects |
Returns
- true if o can be cast to one of the provided class objects
public static boolean isInstance (Object o, Class...<?> classObjects)
A multi-element variant of isInstance(Object).
Parameters
| o | the object to be tested |
|---|---|
| classObjects | a collection of Class objects |
Returns
- true if o can be cast to one of the provided class objects
public static Object newInstance2 (Constructor<?> constructor)
Throws
| IllegalAccessException | |
|---|---|
| IllegalArgumentException | |
| InstantiationException | |
| InvocationTargetException |
public static Class<?> reduceDimensions (Class<?> c)
Reduce dimensions of an array type. Careful, caveat for primitives:
- non-array => non-array
- Object[]...[] => Object
- prim[]...[] => prim[]
Parameters
| c | a type |
|---|
public static Class<?> removeDimensions (Class<?> c)
Remove dimensions of an array type.
- non-array => non-array
- type[]...[] => type
Parameters
| c | a type |
|---|
Returns
- the dimension-less type
public static void set2 (Field f, Object o, Object value)
Throws
| IllegalAccessException | |
|---|---|
| IllegalArgumentException |
public static boolean subtypeOf (Class<?> c, Class<?> parent)
Determine if a type is a descendant of the provided ancestor.
Parameters
| c | a type (class or interface) |
|---|---|
| parent | a candidate ancestor type (class or interface) |
Returns
- true or false