Question

JSTL and Boolean

Asked by: mshirazi1

Hi I have a Boolean Object and have been trying to do a simple <c:when...> JSTL test.
In the following example user.hasprofilepicture returns a Boolean object(Boolean class not the primitive boolean type).
Can somebody help please.

Here is the I have
<c:when test="${user.hasprofilepicture}">
// do sth  
</c:when>

I also tried the following and it didn't work
<c:when test="${user.hasprofilepicture.booleanValue()}">
// do sth  
</c:when>
       
Can somebody please tell me how I am suppose to use Boolean object when I am making a comparison in JSTL.                        

Thanks,
Raz
   

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Asked On
2007-03-05 at 01:54:19ID22427731
Tags

boolean

,

jstl

,

test

Topics

Java Standard Tag Library (JSTL) & Server Tags

,

J2EE

Participating Experts
2
Points
250
Comments
9

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Answers

 

by: JaaxPosted on 2007-03-05 at 02:10:11ID: 18653386

Hi,
 I think this code is just fine
 c:when test="${user.hasprofilepicture}">
// do sth  
</c:when>

Check if the user.hasprofilepicture is indeed true

 

by: karanwPosted on 2007-03-05 at 02:13:55ID: 18653404

Try this..
<c:when test="${user.profilepicture==true}">

 

by: karanwPosted on 2007-03-05 at 02:22:53ID: 18653430

can you post your method name..is it hasprofilepicture?

 

by: JaaxPosted on 2007-03-05 at 02:26:16ID: 18653436

<c:when> is normally used in conjuntion with <c:choose>
If your requirment is just to compare the value why not try <c:if>
<c:if test="${user.hasprofilepicture}">
// do sth  
</c:if>

 

by: mshirazi1Posted on 2007-03-05 at 08:59:15ID: 18655597

Hi
Thanks for the replies.
Here is the hasProfilePicture Method in the user's class.  

public Boolean hasProfilePicture()
{
            return this.profilepicture;
}


I also used Choose but I didn't include the whole thing:
I believe the issue is because I am trtying to get the value from a Boolean class instead of primitive boolean.I don't want to change the class to return boolean though.

here is the complete block:

<c:choose>
      <c:when test="${fanShowSize.hasprofilepicture.booleanValue()}">
                 // do sth
       </c:when>  
        <c:otherwise>
                  // do sth else              
        </c:otherwise>
 </c:choose>
                               
I also tried this:


<c:choose>
      <c:when test="${fanShowSize.hasprofilepicture}">
                 // do sth
       </c:when>  
        <c:otherwise>
                  // do sth else              
        </c:otherwise>
 </c:choose>


Thank you all for your help,
Raz

 

by: karanwPosted on 2007-03-05 at 21:40:17ID: 18659744

Try this...
<c:when test="${user.profilePicture}">
// do sth  
</c:when>

 

by: JaaxPosted on 2007-03-05 at 22:04:19ID: 18659799

Hi
 I think you need to change the method name to isProfilePicture() or getProfilePicture() and then use

<c:if test="${user.profilepicture}">
// do sth  
</c:if>

OR
Without changing
<c:if test="${user.hasProfilepicture() == BOOLEAN.TRUE}">
// do sth  
</c:if>




 

by: karanwPosted on 2007-03-05 at 22:18:52ID: 18659837

I think jstl automatically adds is or has to method name.
So has should work.

 

by: karanwPosted on 2007-03-25 at 23:20:12ID: 18790977

:)

20120131-EE-VQP-002

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