[jboss-user] [JBoss Cache] - How to model data to be stored in JBoss Cache

Sanjit Mohanty [http://community.jboss.org/people/sanjit...] created the discussion "How to model data to be stored in JBoss Cache" To view the discussion, visit: http://community.jboss.org/message/555300#555300 -------------------------------------------------------------- Hi, I understand JBoss cache internally stores data in a map i.e. in a key-value pair. So, incase i need to search for a data in the cache, i need to pass the key and i can retrieve the value. But what if, i need to retrieve key based on value! To clarify more on this, following is an example: Consider i want to store empId, deptId in JBoss cache.     empId = unique employee ID     deptId = department ID. A particular employee can be associated to multiple departments. I want to do following 2 things: (1) Get the deptIds based on an empId (2) Get the empIds based on a deptId Now, if i make empId as key & store deptId as it's value, then i can achieve (1) without any issues but it will be a problem for (2) because i need to do a full traversal of values, which is in-efficient! How should i model my data in this scenario? Thanks In advance! _Sanjit -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/555300#555300] Start a new discussion in JBoss Cache at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]