| ClauseHandler | A container for all the objects needed to process a Jql clause. |
| ClauseInformation | Used to tie together field names, JQL clause names, and document constant names. |
| ValueGeneratingClauseHandler | Implement this if you want to participate in the JQL autocomplete functionality. |
| DefaultClauseHandler | A container for all the objects needed to process a Jql clause. |
| DefaultValuesGeneratingClauseHandler | |
| NoOpClauseHandler | A clause handler that does nothing and will show the passed in error message when validate is invoked. |
