In last blog we discussed how to register a servlet in AEM. Below are the OSGI annotations used in servlet.
- @Component annotation - This OSGi annotation signifies that the class is a Service component and is not processed at runtime by a Service Component Runtime (SCR) implementation. It must be processed by tools and used to add a Component Description to the bundle.
- service property - This signifies the types under which to register this Component as
a service. In our case, the component is registered under the Servlet
type.
- Constants.SERVICE_DESCRIPTION - Defines standard names for the OSGi environment system properties,
service properties, and Manifest header attribute keys. In our case, we
are defining the description of our servlet.
- sling.servlet.methods - Defines which methods this servlet will use. In our case, we are
using the HTTP GET method.
- sling.servlet.resourceTypes - This property defines how are we accessing the servlet. There are
two ways - via resource types and via paths. We will discuss this in the
next section.
- sling.servlet.extensions - The request URL extensions supported by the servlet for requests.
The property value must either be a single String, an array of Strings or
a Vector of Strings. This property is only considered for the registration
with sling.servlet.resourceTypes.
Happy learning!
