org.mozilla.javascript.jdk18

Class VMBridge_jdk18

java.lang.Object

org.mozilla.javascript.VMBridge

org.mozilla.javascript.jdk18.VMBridge_jdk18

public class VMBridge_jdk18
extends VMBridge

Constructor Summary

Constructors

Constructor and Description
VMBridge_jdk18()

Method Summary

Modifier and Type	Method and Description
protected Context	getContext(java.lang.Object contextHelper) Get Context instance associated with the current thread or null if none.
protected java.lang.Object	getInterfaceProxyHelper(ContextFactory cf, java.lang.Class<?>[] interfaces) Create helper object to create later proxies implementing the specified interfaces later.
protected java.lang.Object	getThreadContextHelper() Return a helper object to optimize Context access.
protected java.lang.Object	newInterfaceProxy(java.lang.Object proxyHelper, ContextFactory cf, InterfaceAdapter adapter, java.lang.Object target, Scriptable topScope) Create proxy object for InterfaceAdapter.
protected void	setContext(java.lang.Object contextHelper, Context cx) Associate Context instance with the current thread or remove the current association if cx is null.
protected boolean	tryToMakeAccessible(java.lang.reflect.AccessibleObject accessible) In many JVMSs, public methods in private classes are not accessible by default (Sun Bug #4071593).

Methods inherited from class java.lang.Object

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

Constructor Detail

VMBridge_jdk18

public VMBridge_jdk18()

Method Detail

getThreadContextHelper

protected java.lang.Object getThreadContextHelper()

Description copied from class: VMBridge

Return a helper object to optimize Context access.

The runtime will pass the resulting helper object to the subsequent calls to VMBridge.getContext(Object contextHelper) and VMBridge.setContext(Object contextHelper, Context cx) methods. In this way the implementation can use the helper to cache information about current thread to make Context access faster.

Specified by:

getThreadContextHelper in class VMBridge

getContext

protected Context getContext(java.lang.Object contextHelper)

Description copied from class: VMBridge

Get Context instance associated with the current thread or null if none.

Specified by:

getContext in class VMBridge

Parameters:

contextHelper - The result of VMBridge.getThreadContextHelper() called from the current thread.

setContext

protected void setContext(java.lang.Object contextHelper,
                          Context cx)

Description copied from class: VMBridge

Associate Context instance with the current thread or remove the current association if cx is null.

Specified by:

setContext in class VMBridge

Parameters:

contextHelper - The result of VMBridge.getThreadContextHelper() called from the current thread.

tryToMakeAccessible

protected boolean tryToMakeAccessible(java.lang.reflect.AccessibleObject accessible)

Description copied from class: VMBridge

In many JVMSs, public methods in private classes are not accessible by default (Sun Bug #4071593). VMBridge instance should try to workaround that via, for example, calling method.setAccessible(true) when it is available. The implementation is responsible to catch all possible exceptions like SecurityException if the workaround is not available.

Specified by:

tryToMakeAccessible in class VMBridge

Returns:

true if it was possible to make method accessible or false otherwise.

getInterfaceProxyHelper

protected java.lang.Object getInterfaceProxyHelper(ContextFactory cf,
                                                   java.lang.Class<?>[] interfaces)

Description copied from class: VMBridge

Create helper object to create later proxies implementing the specified interfaces later. Under JDK 1.3 the implementation can look like:

 return java.lang.reflect.Proxy.getProxyClass(..., interfaces).
     getConstructor(new Class[] {
         java.lang.reflect.InvocationHandler.class });
 

Specified by:

getInterfaceProxyHelper in class VMBridge

interfaces - Array with one or more interface class objects.

newInterfaceProxy

protected java.lang.Object newInterfaceProxy(java.lang.Object proxyHelper,
                                             ContextFactory cf,
                                             InterfaceAdapter adapter,
                                             java.lang.Object target,
                                             Scriptable topScope)

Description copied from class: VMBridge

Create proxy object for InterfaceAdapter. The proxy should call InterfaceAdapter.invoke(ContextFactory, Object, Scriptable, Object, Method, Object[]) as implementation of interface methods associated with proxyHelper. Method

Specified by:

newInterfaceProxy in class VMBridge

Parameters:

proxyHelper - The result of the previous call to VMBridge.getInterfaceProxyHelper(ContextFactory, Class[]).