edu.nrao.sss.webapp
Class ManagedBeanRepository

java.lang.Object
  edu.nrao.sss.webapp.ManagedBeanRepository

public class ManagedBeanRepository
extends Object

This class provides an easy way to get access to JSF Managed Beans via their EL value bindings (For example "#{managedBean}").

Author:

btruitt

Constructor Summary

ManagedBeanRepository()

Method Summary

static <T> T

getManagedBean(Class<T> c, String elStatement) Fetches the Object that is currently being used in the FacesContext by using its JSF Expression Language ValueBinding.

Methods inherited from class java.lang.Object

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

Constructor Detail

ManagedBeanRepository

public ManagedBeanRepository()

Method Detail

getManagedBean

public static <T> T getManagedBean(Class<T> c,
                                   String elStatement)

Fetches the Object that is currently being used in the FacesContext by using its JSF Expression Language ValueBinding. The reference returned is a refrence of type c

Parameters:

c - The class of the object being referenced by elStatement

elStatement - a JSF EL statement (i.e. "#{managedBean}").

Returns:

null if the ValueBinding doesn't exist or is of the wrong type.

Throws:

IllegalArgumentException - if elStatement is invalid.