javax.el.ELContextListener Java Examples

@Override
public void addELContextListener(ELContextListener listener) {
    if (listener == null) {
        throw new IllegalArgumentException("ELContextListener was null");
    }
    this.contextListeners.add(listener);
}
 

/**
 * Publishes a {@link javax.faces.event.PostConstructApplicationEvent} event for the current
 * {@link Application} instance.
 */
void publishPostConfigEvent() {

    FacesContext ctx = FacesContext.getCurrentInstance();
    Application app = ctx.getApplication();
    if (null == ((InitFacesContext)ctx).getELContext()) {
        ELContext elContext = new ELContextImpl(app.getELResolver());
        elContext.putContext(FacesContext.class, ctx);
        UIViewRoot root = ctx.getViewRoot();
        if (null != root) {
            elContext.setLocale(root.getLocale());
        }
        ELContextListener[] listeners = app.getELContextListeners();
        if (listeners.length > 0) {
            ELContextEvent event = new ELContextEvent(elContext);
            for (ELContextListener listener: listeners) {
                listener.contextCreated(event);
            }
        }
        ((InitFacesContext)ctx).setELContext(elContext);
    }

    app.publishEvent(ctx,
                     PostConstructApplicationEvent.class,
                     Application.class,
                     app);

}
 

@Override
public void addELContextListener(ELContextListener listener) {
    if (listener == null) {
        throw new IllegalArgumentException("ELConextListener was null");
    }
    this.contextListeners.add(listener);
}
 

@Override
public void addELContextListener(ELContextListener listener) {
    if (listener == null) {
        throw new IllegalArgumentException("ELConextListener was null");
    }
    this.contextListeners.add(listener);
}
 

protected ELContext createELContext(ELResolver resolver) {

        ELContext elContext = new ELContextImpl(resolver);

        // Notify the listeners
        Iterator<ELContextListener> iter = listeners.iterator();
        while (iter.hasNext()) {
            ELContextListener elcl = iter.next();
            elcl.contextCreated(new ELContextEvent(elContext));
        }
        return elContext;
    }
 

@PostConstruct
public void init() {
    pageCounter = randomIntGen.nextInt();
    FacesContext.getCurrentInstance()
        .getApplication()
        .addELContextListener(new ELContextListener() {
            @Override
            public void contextCreated(ELContextEvent evt) {
                evt.getELContext()
                    .getImportHandler()
                    .importClass("com.baeldung.springintegration.controllers.ELSampleBean");
            }
        });
}
 

public void addELContextListener(ELContextListener listener) {
    listeners.add(listener);
}
 

/**
 * Registers an <code>ELContextListener</code> that will be notified
 * whenever a new <code>ELContext</code> is created.
 * <p>
 * At the very least, any <code>ELContext</code> instantiated will have
 * reference to the <code>JspContext</code> under
 * <code>JspContext.class</code>.
 *
 * @param listener The listener to add
 */
public void addELContextListener(ELContextListener listener);
 

/**
 * Registers an <code>ELContextListener</code> that will be notified
 * whenever a new <code>ELContext</code> is created.
 * <p>
 * At the very least, any <code>ELContext</code> instantiated will have
 * reference to the <code>JspContext</code> under
 * <code>JspContext.class</code>.
 * 
 * @param listener The listener to add
 */
public void addELContextListener(ELContextListener listener);
 

/**
 * Registers a <code>ELContextListener</code>s so that context objects
 * can be added whenever a new <code>ELContext</code> is created.
 *
 * <p>At a minimum, the <code>ELContext</code> objects created will
 * contain a reference to the <code>JspContext</code> for this request,
 * which is added by the JSP container.
 * This is sufficient for all the
 * default <code>ELResolver</code>s listed in {@link #addELResolver}.
 * Note that <code>JspContext.class</code> is used as the key to ELContext.putContext()
 * for the <code>JspContext</code> object reference.</p>
 *
 * <p>This method is generally used by frameworks and applications that
 * register their own <code>ELResolver</code> that needs context other
 * than <code>JspContext</code>. The listener will typically add the
 * necessary context to the <code>ELContext</code> provided in the
 * event object. Registering a listener that adds context allows the
 * <code>ELResolver</code>s in the stack to access the context they
 * need when they do a resolution.</p>
 *
 * @param listener The listener to be notified when a new
 *     <code>ELContext</code> is created.
 */
public void addELContextListener(ELContextListener listener);
 

/**
 * Registers an <code>ELContextListener</code> that will be notified
 * whenever a new <code>ELContext</code> is created.
 * <p>
 * At the very least, any <code>ELContext</code> instantiated will have
 * reference to the <code>JspContext</code> under
 * <code>JspContext.class</code>.
 * 
 * @param listener The listener to add
 */
public void addELContextListener(ELContextListener listener);