Skip to main content

ADF A refreshing graph with a af:poll

I wanted to have my adf graph component refresh every 10 seconds or so to reflect the latest info.
I wasn't really interested in Active data to push the info to me when it changed as it changed too often.

So this is super simple and involved the following steps:

1) Drag on a poll component (Component pallet --> operations --> poll)


2) Add a partial trigger to your graph. ( partialTriggers="::poll1") where poll1 is the id of the poll component.

3) viola it just works.

Poll Properties
interval - How long in miliseconds between polls

timeout - Amount of time before the poll stops due to inactivity this will make sure a users session can timeout on this page due to inactivity as a poll is seen as activity (-1 infinite).

pollListener - Add some custom code to each poll event.
  public void yourPoll(PollEvent pollEvent) {
Labels:

Comments

Post a Comment

Popular posts from this blog

OJDeploy: Documentation for the tool

Real DOCS:  http://docs.oracle.com/cd/E26098_01/user.1112/e17455/deploying_apps.htm#OJDUG645 OJDeploy Documentation if you run it from the command line - I keep looking for this so I though I would post it here so I remeber. Oracle JDeveloper Deploy 11.1.2.1.0.6081 Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. Usage:   ojdeploy -profile <name> -workspace <jws> [ -project <name> ] [ <options> ]   ojdeploy -buildfile <ojbuild.xml> [ <options> ]   ojdeploy -buildfileschema Arguments:   -profile               the name of the Profile to deploy   -workspace      full path to the JDeveloper Workspace file(.jws)   -project              name of the JDeveloper Project within the .jws where the Profile can be...
4 comments
Read more

Util code

public static MethodExpression getMethodExpression( String expr, Class returnType, Class[] argTypes){ FacesContext fc = FacesContext.getCurrentInstance(); ELContext elctx = fc.getELContext(); ExpressionFactory elFactory = fc.getApplication().getExpressionFactory(); return elFactory.createMethodExpression( elctx, expr, returnType, argTypes); } public static javax.faces.el.MethodBinding getMethodBinding( String expr, Class[] argTypes){ FacesContext fc = FacesContext.getCurrentInstance(); ELContext elctx = fc.getELContext(); return fc.getApplication().createMethodBinding(expr, argTypes); } SetPropertyListener listener = new SetPropertyListener( ActionEvent.class.getName()); listener.setFrom(link.getRoute()); listener.setValueExpression("to", JSFUtils.getValueExpression("#{pageFlowScope.route}", String.class)); action.addActionListener(listener); AdfFacesContext.getCurrentInstance().getPageFlowScope() .put("route", lin...
Post a Comment
Read more

ADF: LOV Description instead of code

I keep on forgetting how to do this so this is a note to self in terms I understand (ie pictures): Add the related entiy object to yours (in the example we are adding RegionEO(list of values) to CountryEO) Now add the RegionName field from the EO and a transient attribute (I named mine RegionNameLOV) Make the transient attribute updateable and base it on the expression RegionName (the description you wish to display) Add a list of values to RegionNameLOV and map BOTH key to parent fk (region id here) AND RegionName to your transient coulmn (RegionNameLOV).  Map the transient as an Input text with List of Values. Then just drag the lov item onto the page (RegionNameLOV)
Post a Comment
Read more