[JCS-47] How to build an element key

• Type: Question
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: jcs-1.3
• Component/s: Documentation
• Assignee: Aaron Smuts
• Reporter: Ronny Roeller
• Created: 25/Jul/08 09:56
• Updated: 23/Jul/09 19:02
• Resolved: 23/Jul/09 19:02

Description

I use a string as key for my elements. Now I was surprised to get this error message:

11:07:52,257 INFO [CacheEventQueue] Cache event queue created: CacheEventQueue [listenerId=1501085802, cacheName=cache]
11:07:53,000 INFO [STDOUT] org.apache.jcs.access.exception.CacheException: key must not end with : for a put operation

I guess this means that colon is a special character, and can't be freely used as a key.

Unfortunately, I couldn't find any documentation on the project website what the constrains are for keys. It would also be interested to know if there is anything else to be considered when choosing the key, e.g. is there an advantage in using shorter keys?