Understood.
Now, to do this correctly, to architect it, where would I get a good tutorial, or examples. There are so many different ways I can think of creating a tree of topics. I just need to know what is standard. I could have have system being monitored and the selector selecting via"like" statements MainSystem.xyzSystem.errors MainSystem.xyzSystem.statusMessages MainSystem.xyzSystem.restartMessages and selecting with "like" statements in the selector. James.Strachan wrote: > > On 1/15/07, MqUser <[EMAIL PROTECTED]> wrote: >> >> >> >> But I thought that the publish subscribe system was to enable one to >> subscribe to what they wanted and not other messages, thus necessitating >> querrying. > > Yes it does. With messaging systems, you don't 'query' you 'subscribe' > to what you want. > >> And SQL 98? > > SQL is used for the selectors (filters) used on subscriptions. So you > never 'query' a message bus, you subscribe to a stream of messages > which can be filtered using selectors. > > -- > > James > ------- > http://radio.weblogs.com/0112098/ > > -- View this message in context: http://www.nabble.com/Topics-and-subtopics---Newbie-tf2971683.html#a8402756 Sent from the ActiveMQ - User mailing list archive at Nabble.com.
