Search for text in all the sources specified in sources.
If text is NULL then NULL-text searchs will be used for each searchable plugin (see
search for more details).
This method is asynchronous.
| sources |
a List of Source<!-- -->s to search from ( null for all searchable sources) |
| text |
the text to search for |
| keys |
the List of KeyID to retrieve |
| options |
options wanted for that operation |
| callback |
the user defined callback |
| user_data |
the user data to pass to the user callback |
|
the operation identifier |