Compliance with javabean spec
-----------------------------
Key: BEEHIVE-528
URL: http://issues.apache.org/jira/browse/BEEHIVE-528
Project: Beehive
Type: Bug
Components: Controls
Versions: V1Alpha, V1Beta, V1
Environment: All env's
I tested on win2k , x86
Reporter: Mridul Muralidharan
Priority: Critical
Essentially two issues :
1) The manifest entry for a Control in the control jar is not correct.
2) The serialization of the ControlBean is failing.
Here is the email exchange I had with Kyle about this in the alias.
Thanks
--
Mridul,
The intention is that Controls should be 100% conformant with the
JavaBeans spec. You should be able to do things like:
- load, introspect, and use the Control bean class in any JavaBeans aware editor
- use a Control anywhere a JavaBean can be used (like <jsp:useBean> JSP tag)
If there are areas where they are not, then these should be filed as
high-priority JIRA issues. I checked the JAR spec, and "Java-Beans:"
is the correct manifest attribute, so this is definitely an
oversight/bug.
Both this and the serialization issue (serializability of all
code-generated or supporting runtime classes is definitely a reqt too)
should be opened as "Critical/fix by V1" issues.
Your Controls questions and feedback are proving to be invaluable....
keep 'em coming! :)
-- Kyle
On 4/14/05, Mridul Muralidharan <[EMAIL PROTECTED]> wrote:
>> Hi all,
>>
>> Since ControlBean is essentially a javabean , I wanted to see the
>> interoperatability of controls with a pure javabean env.
>> For this , I got the BDK1.1
>> (http://java.sun.com/products/javabeans/software/bdk_download.html - yep
>> , I know this is old !) and tried to load a simple control jar in it.
>> I had to modify the BDK code to also accept "JavaBeans: true" as a
>> javabean (it had a check for only "Java-Beans" - btw , is this valid ?
>> Have not checked the spec yet on this).
>> What I found was that when I try to serialize a control after having
>> customized it , it throws an exception indicating that it cant be
>> serialized.
>> On some digging I found that this was 'cos
>> "org.apache.beehive.controls.api.properties.PropertyKey" had a field
>> "Method _getMethod;".
>> Now , since Method is not serializable , this fails serialization of the
>> entire ControlBean.
>>
>> So question would be whether this is the intended behavior - as in
>> Controls were not expected to interoperate with a plain vanilla javabean
>> env ?
>> (From what I have seen till now , beehive seems to go to great pains to
>> maintain interoperability and is not just using and riding over the
>> javabeans framework).
>> If it is expected to interoperate, then I guess this would be a bug.
>>
>> Any thoughts , comments , help would be greatly appreciated !
>>
>> Thanks and Regards,
>> Mridul
>>
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