How to pass an ArrayList<String> to a bean

Question

I'am using JSF2.0, I want to pass to a bean a property has the type ArrayList ,can I do that? if ues what will be the property-class!

private ArrayList<String> selectedEnvironment;

<managed-bean> <managed-bean-name>Mybean</managed-bean-name> <managed-bean-class>package.Mybean</managed-bean-class> <managed-bean-scope>request</managed-bean-scope> <managed-property> <property-name>selectedEnvironment</property-name> <property-class>?</property-class> <value>#{FMTools.selectedEnvironment}</value> </managed-property> </managed-bean>

Thank you

If you are using JSF2 why are you writing managed-beans configuration? Isn't it easier to use annotations? @ManagedBean — Shervin Asgari
– Shervin Asgari, Commented Aug 1, 2011 at 10:00

Bill the Lizard · Accepted Answer · 2012-08-03 02:29:12Z

You don't need it if the <value> is dynamic already (you're using EL in it). JSF will take care of it. Just omit the <property-class>. You only need it if the <value> is static and you want to set it as something else than String (which it defaults to).

Unrelated to the concrete problem, since JSF 2.0 you don't need the stinkin' faces-config anymore to declare managed beans and managed properties. You can use annotations.

@ManagedBean(name="MyBean") @RequestScoped public class MyBean { @ManagedProperty(value="#{FMTools.selectedEnvironment}") private List<String> selectedEnvironment; // ... }

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