Java Naming – Java Class Version Specific Naming Conventions

When possible, I try to leave implementation details out of names, including a prefix/suffix for an abstract class or interface.

One place to look for guidance/inspiration on naming is the Java API. I can't think of any parts that use the prefix (with a huge exception being the Collections API, which uses the Abstract prefix heavily). The following search will yield some pretty good examples:

"public abstract class" at download.oracle.com/javase/6

You'll find abstract classes are named something abstract and concrete subclasses are named something more concrete. For example, abstract class Reader has concrete subclasses BufferedReader, StringReader, InputStreamReader, etc.

Since your concrete subclasses are just more specific versions of your abstract class, it is intent revealing to choose your names in the same way. In your example, I would name the abstract class AjaxAction and use that in the names for the concrete subclasses (SpecificAjaxAction).

Past-tense kinda sounds awkward. I think that you intended the word to be an adjective.

Here's my suggestion to the problem you asked for: instead of Transpose(), call it GetTransposed(). That way, you know that you are receiving something and not modifying the object.