http://felix.apache.org/site/how-to-use-ipojo-annotations.html#howtouseipojoannotatio...@bind
http://felix.apache.org/site/how-to-use-ipojo-annotations.html#howtouseipojoannotatio...@requires
Is where I was convinced about the mutual relationship between @Bind/Unbind,
and @Requires. But if what you are saying is true, that would be great and
would solve my problem. It is not working when i take away the @Requires
dependency and then the id parameter. Is there any chance you have a
resource of how to accomplish this?
This would be greatly appreciated.
Mark-Anthony
Richard S. Hall wrote:
>
> On 8/11/10 14:16, mhutton86 wrote:
> I am not sure.
>
> I do know that @Requires and @Bind/@Unbind are independent of each
> other, although they can be used together. There are basically two ways
> to have your dependencies injected:
>
> 1. Field injection (i.e., @Requires)
> 2. Method injection (i.e., @Bind/@Unbind)
>
> iPOJO does allow you to use both at the same time, but typically in such
> situations the bind/unbind methods are more for notification purposes or
> for obtaining service properties.
>
> -> richard
>
>>
>>
>> Richard S. Hall wrote:
>>> If you have @Bind/@Unbind and use them to maintain your own list,
>>> then
>>> why do you need @Requires at all?
>>>
>>> -> richard
>>>
>>> On 8/11/10 13:17, mhutton86 wrote:
>>>> I have a service that I require
>>>>
>>>> @Requires(optional=true, id="tidget_devices",
>>>> filter="(!(serviceName=file
>>>> reader))")
>>>> private TidgetSaasmDevice[] initialTidgets;
>>>>
>>>> but these TidgetSaasmDevices are not ready off the bat, and have to be
>>>> added
>>>> via late-binding
>>>> @Bind(id="tidget_devices")
>>>> private synchronized void addTidgetSaasmDevice(TidgetSaasmDevice
>>>> newTidget)
>>>> {...}
>>>>
>>>> @Unbind(id="tidget_devices")
>>>> private synchronized void removeTidgetSaasmDevice(TidgetSaasmDevice
>>>> newTidget){...}
>>>>
>>>> since TidgetSaasmDevice[] is an array. adding to it is a pain. so I
>>>> have
>>>> a
>>>> List to take care of this.
>>>>
>>>> // dynamic list for adding tidgets
>>>> private List<TidgetSaasmDevice> tidgets = new
>>>> ArrayList<TidgetSaasmDevice>();
>>>>
>>>> but the problem when I start felix, is that a tidget is always loaded
>>>> twice
>>>> (random). due to the initial @Requires dependency trying to be
>>>> fulfilled.
>>>> @optional = true, won't solve this (not surprising). I can solve this
>>>> by
>>>> checking if this node is already added before trying to add it again.
>>>> but
>>>> this does not work ans is more of a hack then a fix.
>>>>
>>>> Any ideas?
>>>>
>>>> Example Output:
>>>> adding: tidget-saasm COM22-0
>>>> adding: tidget-saasm COM9-0
>>>> adding: tidget-saasm COM22-1
>>>> adding: tidget-saasm COM29-0
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