Call multiple backing bean methods at the same time

Question

Is there a way to call multiple methods from different backing beans in JSF?

I have an application that stores user information. I have multiple backing beans which are broken down into schedule, address, phone.. etc.

When the application initially loads everything works find but since all of my views are of type @ViewScope the lists of schedule, address, phone are maintained even if a new user is displayed.

I need to manually set the schedule, address, and phone lists to null when the user navigates away from the current person they are viewing IE I need to call a method in each managed bean at one point in time (When the user clicks on a commandLink).

Is it possible to call multiple bean methods on one commandLink?

score 31 · Answer 1 · edited Oct 26 '17 at 07:27

31

<h:commandLink action="#{jsfBean.submit}" value="execute multiple methods">
    <f:actionListener binding="#{jsfBean1.actionListener}"/>
    <f:actionListener binding="#{jsfBean2.actionListener}"/>
    <f:actionListener binding="#{jsfBean3.actionListener}"/>
</h:commandLink>

Using the above code, with methods in the beans have the ('default') signature of actionListener(ActionEvent event)

when you click the commandLink first the submit method will be executed. After that all the other actionListeners will be executed one by one...Hope that helps ;)

edited Oct 26 '17 at 07:27

Kukeltje

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answered Feb 18 '11 at 09:25

Selvin

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*"Note that the JSF implementation always invokes action listeners before actions."* - [Core JavaServer Faces (3rd ed.)](http://www.corejsf.com/), page 314. – Steve Jan 03 '12 at 17:18

score 2 · Answer 2 · answered Feb 16 '11 at 20:04

2

You can have your commandLink reference one method which itself calls all the necessary methods.

answered Feb 16 '11 at 20:04

Sean

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score 1 · Answer 3 · answered Oct 25 '17 at 20:49

1

The answers here were close to working for me but also had to add parenthesis to the methods in the f:actionListener:

<h:commandLink action="#{jsfBean.submit}" value="execute multiple methods">
    <f:actionListener binding="#{jsfBean1.actionListener()}"/>
    <f:actionListener binding="#{jsfBean2.actionListener()}"/>
    <f:actionListener binding="#{jsfBean3.actionListener()}"/>
</h:commandLink>

answered Oct 25 '17 at 20:49

Tony Scialo

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That is only needed (afaik) if your server side methods have that ('non-default') signature instead of `actionListener(ActionEvent event)`... – Kukeltje Oct 25 '17 at 20:52
ahhhh ok. Thanks for the tip @Kukeltje – Tony Scialo Oct 25 '17 at 20:55

Call multiple backing bean methods at the same time

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