Nested and Inner Type Summary

Modifier and Type	Class and Description
private static class	RemoteObjectInvocationHandler.MethodToHash_Maps A weak hash map, mapping classes to weak hash maps that map method objects to method hashes.

Field Summary

Modifier and Type	Field and Description
private static final RemoteObjectInvocationHandler.MethodToHash_Maps	methodToHash_Maps A weak hash map, mapping classes to weak hash maps that map method objects to method hashes.
private static final long	serialVersionUID Hides java.rmi.server.RemoteObject.serialVersionUID.

Inherited from java.rmi.server.RemoteObject:: ref

Constructor Summary

Access	Constructor and Description
public	RemoteObjectInvocationHandler(RemoteRef the remote ref ref) Creates a new `RemoteObjectInvocationHandler` constructed with the specified `RemoteRef`.

Method Summary

Modifier and Type	Method and Description
private static long	Returns: the method hash for the specified method getMethodHash(Method the remote method method) Returns the method hash for the specified method.
public Object	Returns: the value to return from the method invocation on the proxy instance invoke(Object the proxy instance that the method was invoked on proxy, Method the `Method` instance corresponding to the interface method invoked on the proxy instance method, Object[] an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or `null` if the method takes no arguments args) Implements java.lang.reflect.InvocationHandler.invoke. Processes a method invocation made on the encapsulating proxy instance, `proxy`, and returns the result.
private Object	invokeObjectMethod(Object proxy, Method method, Object[] args) Handles java.lang.Object methods.
private Object	invokeRemoteMethod(Object proxy, Method method, Object[] args) Handles remote methods.
private String	proxyToString(Object proxy) Returns a string representation for a proxy that uses this invocation handler.
private void	readObjectNoData()

Inherited from java.rmi.server.RemoteObject:: equals getRef hashCode toString toStub

Field Detail

methodToHash_Maps	back to summary
private static final RemoteObjectInvocationHandler.MethodToHash_Maps methodToHash_Maps A weak hash map, mapping classes to weak hash maps that map method objects to method hashes.

serialVersionUID	back to summary
private static final long serialVersionUID Hides java.rmi.server.RemoteObject.serialVersionUID.

Constructor Detail

RemoteObjectInvocationHandler back to summary

RemoteObjectInvocationHandler	back to summary
public RemoteObjectInvocationHandler(RemoteRef ref) Creates a new `RemoteObjectInvocationHandler` constructed with the specified `RemoteRef`. Parameters ref:RemoteRef the remote ref Exceptions NullPointerException: if `ref` is `null`

public RemoteObjectInvocationHandler(RemoteRef ref)

Creates a new RemoteObjectInvocationHandler constructed with the specified RemoteRef.

Parameters

ref:RemoteRef: the remote ref

Exceptions

NullPointerException:: if ref is null

Method Detail

getMethodHash	back to summary
private static long getMethodHash(Method method) Returns the method hash for the specified method. Subsequent calls to "getMethodHash" passing the same method argument should be faster since this method caches internally the result of the method to method hash mapping. The method hash is calculated using the "computeMethodHash" method. Parameters method:Method the remote method Returns:long the method hash for the specified method

getMethodHash

back to summary

private static long getMethodHash(Method method)

Returns the method hash for the specified method. Subsequent calls to "getMethodHash" passing the same method argument should be faster since this method caches internally the result of the method to method hash mapping. The method hash is calculated using the "computeMethodHash" method.

Parameters

method:Method: the remote method

Returns:long

the method hash for the specified method

invoke back to summary

invoke	back to summary
public Object invoke(Object proxy, Method method, Object[] args) throws Throwable Implements java.lang.reflect.InvocationHandler.invoke. Processes a method invocation made on the encapsulating proxy instance, `proxy`, and returns the result. `RemoteObjectInvocationHandler` implements this method as follows: If `method` is one of the following methods, it is processed as described below: `Object.hashCode`: Returns the hash code value for the proxy. `Object.equals`: Returns `true` if the argument (`args[0]`) is an instance of a dynamic proxy class and this invocation handler is equal to the invocation handler of that argument, and returns `false` otherwise. `Object.toString`: Returns a string representation of the proxy. If `method` overrides `Object.finalize`, it is ignored. Otherwise, a remote call is made as follows: If `proxy` is not an instance of the interface `Remote`, then an `IllegalArgumentException` is thrown. Otherwise, the `invoke` method is invoked on this invocation handler's `RemoteRef`, passing `proxy`, `method`, `args`, and the method hash (defined in section 8.3 of the "Java Remote Method Invocation (RMI) Specification") for `method`, and the result is returned. If an exception is thrown by `RemoteRef.invoke` and that exception is a checked exception that is not assignable to any exception in the `throws` clause of the method implemented by the `proxy`'s class, then that exception is wrapped in an `UnexpectedException` and the wrapped exception is thrown. Otherwise, the exception thrown by `invoke` is thrown by this method. The semantics of this method are unspecified if the arguments could not have been produced by an instance of some valid dynamic proxy class containing this invocation handler. Parameters proxy:Object the proxy instance that the method was invoked on method:Method the `Method` instance corresponding to the interface method invoked on the proxy instance args:Object[] an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or `null` if the method takes no arguments Returns:Object the value to return from the method invocation on the proxy instance Exceptions Throwable: the exception to throw from the method invocation on the proxy instance

public Object invoke(Object proxy, Method method, Object[] args) throws Throwable

Implements java.lang.reflect.InvocationHandler.invoke.

Processes a method invocation made on the encapsulating proxy instance, proxy, and returns the result.

RemoteObjectInvocationHandler implements this method as follows:

If method is one of the following methods, it is processed as described below:

Object.hashCode: Returns the hash code value for the proxy.
Object.equals: Returns true if the argument (args[0]) is an instance of a dynamic proxy class and this invocation handler is equal to the invocation handler of that argument, and returns false otherwise.
Object.toString: Returns a string representation of the proxy.

If method overrides Object.finalize, it is ignored.

Otherwise, a remote call is made as follows:

If proxy is not an instance of the interface Remote, then an IllegalArgumentException is thrown.
Otherwise, the invoke method is invoked on this invocation handler's RemoteRef, passing proxy, method, args, and the method hash (defined in section 8.3 of the "Java Remote Method Invocation (RMI) Specification") for method, and the result is returned.
If an exception is thrown by RemoteRef.invoke and that exception is a checked exception that is not assignable to any exception in the throws clause of the method implemented by the proxy's class, then that exception is wrapped in an UnexpectedException and the wrapped exception is thrown. Otherwise, the exception thrown by invoke is thrown by this method.

The semantics of this method are unspecified if the arguments could not have been produced by an instance of some valid dynamic proxy class containing this invocation handler.

Parameters

proxy:Object: the proxy instance that the method was invoked on
method:Method: the Method instance corresponding to the interface method invoked on the proxy instance
args:Object[]: an array of objects containing the values of the arguments passed in the method invocation on the proxy instance, or null if the method takes no arguments

Returns:Object

the value to return from the method invocation on the proxy instance

Exceptions

Throwable:: the exception to throw from the method invocation on the proxy instance

invokeObjectMethod	back to summary
private Object invokeObjectMethod(Object proxy, Method method, Object[] args) Handles java.lang.Object methods.

invokeRemoteMethod	back to summary
private Object invokeRemoteMethod(Object proxy, Method method, Object[] args) throws Exception Handles remote methods.

proxyToString	back to summary
private String proxyToString(Object proxy) Returns a string representation for a proxy that uses this invocation handler.

readObjectNoData	back to summary
private void readObjectNoData() throws InvalidObjectException Exceptions InvalidObjectException: unconditionally

java.rmi.server back to summary

private Class RemoteObjectInvocationHandler.MethodToHash_Maps

Class Inheritance

extends WeakClassHashMap<Map<Method, Long>>

java.lang.Object
sun.rmi.server.WeakClassHashMap
java.rmi.server.RemoteObjectInvocationHandler.MethodToHash_Maps

A weak hash map, mapping classes to weak hash maps that map method objects to method hashes.

Constructor Summary

Access	Constructor and Description
pack-priv	MethodToHash_Maps()

Method Summary

Modifier and Type	Method and Description
protected Map<Method, Long>	computeValue(Class<?> remoteClass) Implements abstract sun.rmi.server.WeakClassHashMap.computeValue.

Inherited from sun.rmi.server.WeakClassHashMap:: get

Constructor Detail

MethodToHash_Maps	back to summary
pack-priv MethodToHash_Maps()

Method Detail

computeValue	back to summary
protected Map<Method, Long> computeValue(Class<?> remoteClass) Implements abstract sun.rmi.server.WeakClassHashMap.computeValue.

public Class RemoteObjectInvocationHandler

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

private Class RemoteObjectInvocationHandler.MethodToHash_Maps

Constructor Summary

Method Summary

Constructor Detail

Method Detail