| package com.fasterxml.jackson.databind.annotation; |
| |
| /** |
| * Marker class used with annotations to indicate "no class". This is |
| * a silly but necessary work-around -- annotations can not take nulls |
| * as either default or explicit values. Hence for class values we must |
| * explicitly use a bogus placeholder to denote equivalent of |
| * "no class" (for which 'null' is usually the natural choice). |
| *<p> |
| * Note that since 2.4, most (but not all! |
| * {@link com.fasterxml.jackson.annotation.JsonTypeInfo#defaultImpl} is |
| * a notable exception}) usage should start using |
| * {@link java.lang.Void} instead as the "not defined" marker. |
| */ |
| public final class NoClass |
| { |
| private NoClass() { } |
| } |