difference between @slingServlet vs Felix scr annotation vs OSGI DS

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I have been reading through the documentation and confused as to when to use @slingServlet vs Felix scr annotation vs OSGI DS.

In one of the tech documents i read that OSGI DS is the newer standard and should be used instead of Felix scr anotation , but I could not link the @slingServlet ?

Are these 3 different ways of creating OSGi components ? or something else ?

When do we use @slingServlet ?

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smacdonald2008Accepted solution

Level 10

You basic confusion is there are two main packages that define annotations.

org.osgi.service.component.annotations.Component

org.apache.felix.scr.annotations.Component

For example, the @Component annotation used in Maven Archetype 10 was org.apache.felix.scr.annotations.Component

Now the @Component Annotation used in Maven Archetype 11 is org.osgi.service.component.annotations.Component;

There are quite a few significant changes. For example, there is no longer @Service or @SlingServlet annotations in org.osgi.service.component.annotations.

In Maven Arch 10 project - we could defined a servlet like this:

@SlingServlet(paths="/bin/mySearchServlet", methods = "POST", metatype=true)

public class HandleClaim extends org.apache.sling.api.servlets.SlingAllMethodsServlet {

private static final long serialVersionUID = 2598426539166789515L;

In Maven Arch 11 – we define a servlet like this – no @SlingServlet annotation:

@Component(service=Servlet.class,

property={

Constants.SERVICE_DESCRIPTION + "=Simple Demo Servlet",

"sling.servlet.methods=" + HttpConstants.METHOD_POST,

"sling.servlet.paths="+ "/bin/myDataSourcePoolServlet"

})

Read this article written by Feike:

Learn about the Annotations in the org.osgi.service.component.annotations package

S

sandeshb6678015Author

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thanks smacdonald2008

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