org.jboss.resteasy.util

Class GenericType<T>

java.lang.Object

org.jboss.resteasy.util.GenericType<T>

public class GenericType<T>
extends Object

This class is a trick used to extract GenericType information at runtime. Java does not allow you get generic type information easily, so this class does the trick. For example:

 Type genericType = (new GenericType>() {}).getGenericType();
 

The above code will get you the genericType for List

Version:

$Revision: 1 $

Author:

Bill Burke

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GenericType() Constructs a new generic entity.

Method Summary

Methods

Modifier and Type	Method and Description
Type	getGenericType() Gets underlying Type instance.
Class<T>	getType() Gets the raw type of the enclosed entity.

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericType

protected GenericType()

Constructs a new generic entity. Derives represented class from type parameter. Note that this constructor is protected, users should create a (usually anonymous) subclass as shown above.

Parameters:

entity - the entity instance, must not be null

Throws:

IllegalArgumentException - if entity is null

Method Detail

getType

public final Class<T> getType()

Gets the raw type of the enclosed entity. Note that this is the raw type of the instance, not the raw type of the type parameter. I.e. in the example in the introduction, the raw type is ArrayList not List.

Returns:

the raw type

getGenericType

public final Type getGenericType()

Gets underlying Type instance. Note that this is derived from the type parameter, not the enclosed instance. I.e. in the example in the introduction, the type is List<String> not ArrayList<String>.

Returns:

the type