Child Resources are REST servlets or objects that are linked to parent resources through the {@link oajr.annotation.RestResource#children() @RestResource(children)} annotation.

Example:

/** Parent Resource */ @RestResource( path="/parent", children={FooResource.class} ) public MyResource extends BasicRestServlet {...}

/** Child Resource */ @RestResource( path="/foo" // Path relative to parent resource. ) public FooResource {...} // Note that we don't need to extend from RestServlet.

The path of the child resource gets appended to the path of the parent resource.
So in the example above, the child resource is accessed through the URL /parent/foo.

A HUGE advantage of using child resources is that they do not need to be declared in the JEE web.xml file.
Initialization of and access to the child resources occurs through the parent resource.
Children can be nested arbitrary deep to create complex REST interfaces with a single top-level REST servlet.

See Also:

• {@link oajr.RestContext#REST_children}