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| |
| Class Hierarchy |
| |
| <p> |
| The class hierarchy for the REST servlet class is shown below: |
| </p> |
| <ul class='javatree'> |
| <li class='jac'> |
| {@link javax.servlet.http.HttpServlet javax.servlet.http.HttpServlet} |
| <ul> |
| <li class='jac'> |
| {@link oajr.RestServlet org.apache.juneau.rest.RestServlet} |
| <br>Contains all the main logic. |
| <ul> |
| <li class='jac'>{@link oajr.BasicRestServlet org.apache.juneau.rest.BasicRestServlet} |
| <br>Provides a default set of serializers, parsers, options page, stylesheet, and other common settings. |
| <ul> |
| <li class='jac'>{@link oajr.BasicRestServletGroup org.apache.juneau.rest.BasicRestServletGroup} |
| <br>A default implementation for "router" pages. |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <p> |
| For top-level resources, you'll typically extend from one of the classes above. |
| </p> |
| <p> |
| For child resources, you can either extend from one of the classes above, or extend from one of the following |
| that provides identical support but does not extent from <c>HttpServlet</c>: |
| </p> |
| <ul class='javatree'> |
| <li class='jic'> |
| {@link oajr.BasicRestConfig} |
| <ul> |
| <li class='jac'>{@link oajr.BasicRest org.apache.juneau.rest.BasicRest} |
| <br>Provides a default set of serializers, parsers, options page, stylesheet, and other common settings. |
| <ul> |
| <li class='jac'>{@link oajr.BasicRestGroup org.apache.juneau.rest.BasicRestGroup} |
| <br>A default implementation for "router" pages. |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| <p> |
| One reason to use the latter classes as your base classes is when you're implementing REST resources as |
| <ja>@Bean</ja>-annotated Spring Beans and you don't want them to be automatically registered as top-level servlets. |
| </p> |
| |
| <p> |
| The servlets with RDF support require Jena on the classpath. |
| All other serializers and parsers do not have any external library dependencies. |
| For this reason, we have separate servlets for supporting RDF so that you don't need Jena if you don't need to |
| support RDF. |
| </p> |
| <p> |
| Everything is configured through the following classes which you will see a lot: |
| </p> |
| <ul class='javatree'> |
| <li class='jc'>{@link oajr.RestContext} - Each resource class instance has one copy that holds all of its configuration. |
| <li class='jc'>{@link oajr.RestContextBuilder} - Builder for the class above. |
| </ul> |