JSTL and Boolean : boolean, jstl, test

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03.05.2007 at 01:54AM PST, ID: 22427731

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7.2

JSTL and Boolean

Zones: Java Standard Tag Library (JSTL) & Server Tags, J2EE

Tags: boolean, jstl, test

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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Question Stats

Zone: Programming

Question Asked By: mshirazi1

Solution Provided By: karanw

Participating Experts: 2

Solution Grade: A

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03.05.2007 at 02:10AM PST, ID: 18653386

Jaax:

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

03.05.2007 at 02:13AM PST, ID: 18653404

karanw:

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

03.05.2007 at 02:22AM PST, ID: 18653430

karanw:

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

03.05.2007 at 02:26AM PST, ID: 18653436

Jaax:

<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>

03.05.2007 at 08:59AM PST, ID: 18655597

mshirazi1:

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

03.05.2007 at 09:40PM PST, ID: 18659744

karanw:

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

Accepted Solution

03.05.2007 at 10:04PM PST, ID: 18659799

Jaax:

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>

03.05.2007 at 10:18PM PST, ID: 18659837

karanw:

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

03.25.2007 at 11:20PM PDT, ID: 18790977

karanw:

20080236-EE-VQP-29