Querying just cache

Question

Hi,
I want to querying coherence cache for each 5 seconds with a cql query. The cache connects to cql processor and processor has not taken any events from any channel. There is no channel that connects to cql processors.
In the adapter components I am setting and updating the coherence cache and I want to query and filter the data in the cache with a CQL query.
If I write this code, CEP gives an error, I describe this at below cql query.
             <![CDATA[
             select
                  t1.telNo as telNo
             from
                  customerCache t1
              ]]>
<BEA-2045016> <The application context "SOLNoActiveSubs" could not be started. Could not initialize component "<unknown>":
Invalid statement: "select
                  t1.telNo as telNo
             from
                  >>customerCache t1<<"
Description: generic syntax error
Cause: This DDL command has syntax error
Action: The syntax expects  '[', as, match_recognize, xmltable, end-of-file, ')', ',', where, group, having, order, left, right, partition, on, primary token>
####<Mar 1, 2011 12:07:01 AM EET> <Info> <OSGiLogReaderAdapter> <> <myServer> <Log Event Dispatcher> <> <> <> <1298930821652> <BEA-000000> <Bundle[308] SOLNoActiveSubs, Message (BundleEvent STOPPED), Exception (null), Time (1298930821652)>
####<Mar 1, 2011 12:07:01 AM EET> <Notice> <Deployment> <> <myServer> <[ACTIVE] ExecuteThread: '6' for queue: 'weblogic.kernel.Default (self-tuning)'> <> <> <> <1298930821653> <BEA-2045001> <The application bundle "SOLNoActiveSubs" was undeployed successfully> Is there a way to query coherence cache within CQL processor even there is not any channel which connects to cql processors. Instead, should I use event bean to achieve this?
Thanks.

Answer 1

Hi, please follow the CEP programming model to write the application. We use adapter to retrieve external data and convert them to CEP event(POJO or Tuple), and processor is driven by streaming data which means the rules are evaluated only when events come to processor.
Therefore you need revise your adapter and configure your EPN as something like: Adapter -> Channel -> Processor -> Channel -> UserBean(or Outbound Adapter).
If you need coherence cache to implement cluster processing, you can use HA adapter alternatively. More discussion needs you state your use case.