org.mozilla.javascript.jdk13

Class VMBridge_jdk13

java.lang.Object

org.mozilla.javascript.VMBridge

org.mozilla.javascript.jdk13.VMBridge_jdk13

Direct Known Subclasses:

VMBridge_jdk15

public class VMBridge_jdk13
extends VMBridge

Constructor Summary

Constructors

Constructor and Description
VMBridge_jdk13()

Method Summary

Methods

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

Methods inherited from class org.mozilla.javascript.VMBridge

getJavaIterator

Methods inherited from class java.lang.Object

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

Constructor Detail

VMBridge_jdk13

public VMBridge_jdk13()

Method Detail

getThreadContextHelper

protected 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(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(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.

getCurrentThreadClassLoader

protected ClassLoader getCurrentThreadClassLoader()

Description copied from class: VMBridge

Return the ClassLoader instance associated with the current thread.

Specified by:

getCurrentThreadClassLoader in class VMBridge

tryToMakeAccessible

protected boolean tryToMakeAccessible(Object accessibleObject)

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 Object getInterfaceProxyHelper(ContextFactory cf,
                             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 });
 

Overrides:

getInterfaceProxyHelper in class VMBridge

interfaces - Array with one or more interface class objects.

newInterfaceProxy

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

Description copied from class: VMBridge

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

Overrides:

newInterfaceProxy in class VMBridge

Parameters:

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

isVarArgs

protected boolean isVarArgs(Member member)

Description copied from class: VMBridge

Returns whether or not a given member (method or constructor) has variable arguments. Variable argument methods have only been supported in Java since JDK 1.5.

Specified by:

isVarArgs in class VMBridge