Custom parameter types
From Joomla! Documentation
The "J1.5" namespace is an archived namespace. This page contains information for a Joomla! version which is no longer supported. It exists only as a historical reference, it will not be improved and its content may be incomplete and/or contain broken links.
It is possible to add support for additional parameter types beyond the standard parameter types. This page lists resources for adding custom parameter types and gives a list of example custom parameter types.
List of custom parameter types[edit]
If you are a developer and you have created an interesting or useful custom parameter type, then please feel free to add it this list.