elstar IT

At a customer we have portals build with JSF 1.2, yeah I know ;-). Today is was interesting to found a solution for a problem.

In JSF 1.x there is a limitation of the Expression Language. It is not possible to pass parameters  in methods in EL to controller bean.

I found a nice workaround for this limitation by using the setPropertyActionListener
Below is a button where this ActionListner is used

<h:form>
    <h:commandLink value="Click here" action="#{myBean.action}">
        <f:setPropertyActionListener target="#{myBean.propertyName1}" value="propertyValue1" />
        <f:setPropertyActionListener target="#{myBean.propertyName2}" value="propertyValue2" />
    </h:commandLink>

    <h:commandButton value="Press here" action="#{myBean.action}">
        <f:setPropertyActionListener target="#{myBean.propertyName1}" value="propertyValue1" />
        <f:setPropertyActionListener target="#{myBean.propertyName2}" value="propertyValue2" />
    </h:commandButton>
</h:form>

And this connected to the managed bean.

public class MyBean {

private String propertyName1;
private String propertyName2;

public void action() {
System.out.println("propertyName1: " + propertyName1);
System.out.println("propertyName2: " + propertyName2);
}

public void setPropertyName1(String propertyName1) {
this.propertyName1 = propertyName1;
}

public void setPropertyName2(String propertyName2) {
this.propertyName2 = propertyName2;
}

}

Happy coding….