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From Hiram Chirino <>
Subject Re: Remove reliance on JMX and
Date Sun, 21 Nov 2004 06:02:20 GMT
+1 from me too.  Did the Kernel eliminate it's dependency on JMX events?


Dain Sundstrom wrote:

> +1
> Good idea.  This has been bugging me for a long time.
> -dain
> On Nov 20, 2004, at 11:44 AM, Jeremy Boynes wrote:
>> One of the goals of the kernel has been to support JMX but also to 
>> allow implementations that do not rely on it. However, one area of 
>> coupling that is prevalent is the use of 
>> to identify GBean instances.
>> I would like to propose we add an interface to the kernel module that 
>> represents a GBean's identity (e.g. o.a.g.k.GBeanName) that serves a 
>> similar function but which can be implemented based on j.m.ObjectName 
>> or alternatives.
>> To instantiate these, we would add methods to the Kernel like:
>>    public GBeanName newName(String name) throws InvalidNameException;
>>    public GBeanName createName(String name) throws InvalidNameError;
>> where InvalidNameError extends AssertionError and createName works 
>> similarly to the create operation for URI. Variations would also be 
>> added that take properties in a manner similar to j.m.ObjectName
>> One consequence would be that we could no longer create names in 
>> static initializers (typical use of JMXUtil.getObjectName(String)) as 
>> the implementation needed would depend on the kernel it was going to 
>> be used with.
>> This will also mean changing a lot of code that currently expects to 
>> use JMX ObjectNames to interact with the kernel. To phase this in I 
>> would propose we deprecate the existing API calls that use ObjectName 
>> and add new versions that use GBeanName; we would then remove the 
>> ObjectName variants at some time between now and RC1 depending on how 
>> quickly code can be transitioned over.
>> If no-one objects I will start implementating this next week and 
>> expect it will take a couple of weeks to complete.
>> -- 
>> Jeremy

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