The NSRange object is a structure that we define in Java to correspond with the NSRange objective-c structure according to JNA conventions. It's implementation (for your reference) was:
@see JavaNativeAccess On GitHub @author shannahWrapper class which serves as a proxy for an object to the database.
@author Michael Grove @since 0.5 @version 0.7Proxy stores preferences to be used by a Proxy implementation like ProxyUrl
@author Manish KatariaA proxy in this sense is a host to which requests must be routed, normally required in order to access hosts outside a protected network.
Warning: This is a facade provided for use by user code, not for implementation by user code. User implementations of this interface are highly likely to be incompatible with future releases of the product at both binary and source levels.
@mock.generateProxy
provides static methods for creating dynamic proxy classes and instances, and it is also the superclass of all dynamic proxy classes created by those methods. To create a proxy for some interface Foo
:
InvocationHandler handler = new MyInvocationHandler(...); Class proxyClass = Proxy.getProxyClass( Foo.class.getClassLoader(), new Class[] { Foo.class }); Foo f = (Foo) proxyClass. getConstructor(new Class[] { InvocationHandler.class }). newInstance(new Object[] { handler });or more simply:
Foo f = (Foo) Proxy.newProxyInstance(Foo.class.getClassLoader(), new Class[] { Foo.class }, handler);
A dynamic proxy class (simply referred to as a proxy class below) is a class that implements a list of interfaces specified at runtime when the class is created, with behavior as described below. A proxy interface is such an interface that is implemented by a proxy class. A proxy instance is an instance of a proxy class. Each proxy instance has an associated invocation handler object, which implements the interface {@link InvocationHandler}. A method invocation on a proxy instance through one of its proxy interfaces will be dispatched to the {@link InvocationHandler#invoke invoke} method of the instance's invocation handler, passing the proxyinstance, a java.lang.reflect.Method
object identifying the method that was invoked, and an array of type Object
containing the arguments. The invocation handler processes the encoded method invocation as appropriate and the result that it returns will be returned as the result of the method invocation on the proxy instance.
A proxy class has the following properties:
"$Proxy"
should be, however, reserved for proxy classes. java.lang.reflect.Proxy
. getInterfaces
on its Class
object will return an array containing the same list of interfaces (in the order specified at its creation), invoking getMethods
on its Class
object will return an array of Method
objects that include all of the methods in those interfaces, and invoking getMethod
will find methods in the proxy interfaces as would be expected. Proxy.getProxyClass
or the class of an object returned by Proxy.newProxyInstance
-- and false otherwise. java.security.ProtectionDomain
of a proxy class is the same as that of system classes loaded by the bootstrap class loader, such as java.lang.Object
, because the code for a proxy class is generated by trusted system code. This protection domain will typically be granted java.security.AllPermission
. A proxy instance has the following properties:
proxy
and one of the interfaces implemented by its proxy class Foo
, the following expression will return true: proxy instanceof Foo
and the following cast operation will succeed (rather than throwing a ClassCastException
): (Foo) proxy
hashCode
, equals
, or toString
methods declared in java.lang.Object
on a proxy instance will be encoded and dispatched to the invocation handler's invoke
method in the same manner as interface method invocations are encoded and dispatched, as described above. The declaring class of the Method
object passed to invoke
will be java.lang.Object
. Other public methods of a proxy instance inherited from java.lang.Object
are not overridden by a proxy class, so invocations of those methods behave like they do for instances of java.lang.Object
. When two or more interfaces of a proxy class contain a method with the same name and parameter signature, the order of the proxy class's interfaces becomes significant. When such a duplicate method is invoked on a proxy instance, the Method
object passed to the invocation handler will not necessarily be the one whose declaring class is assignable from the reference type of the interface that the proxy's method was invoked through. This limitation exists because the corresponding method implementation in the generated proxy class cannot determine which interface it was invoked through. Therefore, when a duplicate method is invoked on a proxy instance, the Method
object for the method in the foremost interface that contains the method (either directly or inherited through a superinterface) in the proxy class's list of interfaces is passed to the invocation handler's invoke
method, regardless of the reference type through which the method invocation occurred.
If a proxy interface contains a method with the same name and parameter signature as the hashCode
, equals
, or toString
methods of java.lang.Object
, when such a method is invoked on a proxy instance, the Method
object passed to the invocation handler will have java.lang.Object
as its declaring class. In other words, the public, non-final methods of java.lang.Object
logically precede all of the proxy interfaces for the determination of which Method
object to pass to the invocation handler.
Note also that when a duplicate method is dispatched to an invocation handler, the invoke
method may only throw checked exception types that are assignable to one of the exception types in the throws
clause of the method in all of the proxy interfaces that it can be invoked through. If the invoke
method throws a checked exception that is not assignable to any of the exception types declared by the method in one of the proxy interfaces that it can be invoked through, then an unchecked UndeclaredThrowableException
will be thrown by the invocation on the proxy instance. This restriction means that not all of the exception types returned by invoking getExceptionTypes
on the Method
object passed to the invoke
method can necessarily be thrown successfully by the invoke
method.
@author Peter Jones
@version 1.22, 05/11/17
@see InvocationHandler
@since 1.3
Proxy
is an immutable object.
@version 1.3, 08/09/03
@see java.net.ProxySelector
@author Yingxian Wang
@author Jean-Christophe Collet
@since 1.5
<proxy>
element contains informations required to a proxy settings.
@version $Revision$ $Date$
Proxy
class is the common superclass for client proxies to remote objects.
@author Tim Anderson
@version $Revision: 1.2 $ $Date: 2005/11/16 12:32:50 $
@see Delegate
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|