JSF EL expression compare string value

Question

I am trying to evaluate EL expression (method expression?) that returns a value (String) if that value is equal to "bar" then I would like to render the tag.

<p:tab rendered="#{bean.getAnswer('foo').answer == "bar"}" />

However I get following error message.

Invalid location of text ("}") in tag.

What would be the right syntax to use?

Answer 1

Edit: Remove the double quotes arround bar, it's also such a String. You can use == also to compare Strings. I preffer eq for more readable.

<p:tab rendered="#{bar eq bean.getAnswer('foo')}" />

<p:tab rendered="#{bar == bean.getAnswer('foo')}" />

All operators can you found here. http://docs.oracle.com/javaee/6/tutorial/doc/bnaik.html

THX @Jasper de Vries

Answer 2

The problem I see here is the use of "" for the value bar, as it is conflicting with the outer "".

Have it wrapped inside single quotes, like so 'bar'.

Hope this helps.

UPDATE:

Using 'eq' with String makes it more readable. However, == works too.