Problem using Declarative Services

[u722]

Hello everybody,

I am using osgi for my thesis project and i have faced a problem by using declarative services.

Specifically i want to declare a service which refers to another. Here is the source code.

Service Interface :

package admin.service.adjustLight;

import classes.*;

public interface LightAdjustment {

public void adjustLight (Light light);

}

Service Implementation Class :

package admin.service.adjustLight;

import admin.decision.module.*;
import classes.ConsoleMessages;
import classes.Light;

public class LightAdjustmentImpl implements LightAdjustment{

ConsoleMessages consoleMessages = new ConsoleMessages();
static AdjustmentDecision decisionService;

protected void bind(AdjustmentDecision decision) {

System.out.println("A new service was bind");
decisionService=decision;

}

protected void unbind(AdjustmentDecision decision) {

decisionService=null;

}


public void adjustLight(Light light) {

Object object=null;
decisionService.getDecision(object);

}

}

Component Description xml file :

<?xml version="1.0"?>
<component name="L">
<implementation class="admin.service.adjustLight.LightAdjustmentIm pl"/>
<service>
<provide interface="admin.service.adjustLight.LightAdjustme nt"/>
</service>
<reference name="LOG"
interface="admin.decision.module.AdjustmentDecisio n"
bind="bind"
unbind="unbind"
/>
</component>

The problem is that, although my service LightAdjustment is registered, the binding with the reference service AdjustmentDecision is never happened (the message "A new service was bind" is not printed).

I would be very glad if anyone could help me.

Thanks.