org.apache.tomcat

Interface ContextBind

All Known Subinterfaces:

Context

All Known Implementing Classes:

FailedContext, ReplicatedContext, StandardContext

public interface ContextBind

Method Summary

Modifier and Type	Method and Description
java.lang.ClassLoader	bind(boolean usePrivilegedAction, java.lang.ClassLoader originalClassLoader) Change the current thread context class loader to the web application class loader.
void	unbind(boolean usePrivilegedAction, java.lang.ClassLoader originalClassLoader) Restore the current thread context class loader to the original class loader in used before bind(boolean, ClassLoader) was called.

Method Detail

bind

java.lang.ClassLoader bind(boolean usePrivilegedAction,
                           java.lang.ClassLoader originalClassLoader)

Change the current thread context class loader to the web application class loader. If no web application class loader is defined, or if the current thread is already using the web application class loader then no change will be made. If the class loader is changed and a ThreadBindingListener is configured then ThreadBindingListener.bind() will be called after the change has been made.

Parameters:

usePrivilegedAction - Should a PrivilegedAction be used when obtaining the current thread context class loader and setting the new one?

originalClassLoader - The current class loader if known to save this method having to look it up

Returns:

If the class loader has been changed by the method it will return the thread context class loader in use when the method was called. If no change was made then this method returns null.

unbind

void unbind(boolean usePrivilegedAction,
            java.lang.ClassLoader originalClassLoader)

Restore the current thread context class loader to the original class loader in used before bind(boolean, ClassLoader) was called. If no original class loader is passed to this method then no change will be made. If the class loader is changed and a ThreadBindingListener is configured then ThreadBindingListener.unbind() will be called before the change is made.

Parameters:

usePrivilegedAction - Should a PrivilegedAction be used when setting the current thread context class loader?

originalClassLoader - The class loader to restore as the thread context class loader