Topic naming
Consider the following restrictions when deciding on your topic paths.
Restricted characters
Topics are identified by a path. A path is made up of path segments separated by the slash character (/).
Each path segment can be made up of one or more Unicode characters but must not contain any of the restricted characters mentioned below. The slash character (/) is not permitted in any path segment.
Reserved spaces
Paths starting with the path segments Diffusion and @ are reserved for internal use.
Recommendations
Although all Unicode characters except the slash character (/) are supported, we recommend avoiding common regular expression metacharacters such as '*' and '?' in path names to avoid having to quote these characters in topic selector expressions.
This page last modified: 2018/04/06