Disabling Coherence Cache

Another simple problem: How do I control if certain or all Cache operations should be disabled? By default it is not possible and need some custom coding... How? As usual lets create a cache config..

<cache-config>
    <caching-scheme-mapping>
        <cache-mapping>
            <cache-name>ControllerCache</cache-name>
            <scheme-name>some-dist</scheme-name>
        </cache-mapping>
        <cache-mapping>
            <cache-name>ControlledCache</cache-name>
            <scheme-name>with-rw-bm</scheme-name>
        </cache-mapping>
     </caching-scheme-mapping>
     <caching-schemes>
        <distributed-scheme>
            <scheme-name>with-rw-bm</scheme-name>
            <service-name>unlimited-partitioned</service-name>
            <backing-map-scheme>
                <read-write-backing-map-scheme>
                    <scheme-ref>base-rw-bm</scheme-ref>
                </read-write-backing-map-scheme>
            </backing-map-scheme>
            <autostart>true</autostart>
        </distributed-scheme>
        <read-write-backing-map-scheme>
            <scheme-name>base-rw-bm</scheme-name>
            <class-name>ControllerBackingMap</class-name>
            <internal-cache-scheme>
                <local-scheme/>
            </internal-cache-scheme>
        </read-write-backing-map-scheme>
     </caching-schemes>
</cache-config>

Now lets create the ControllerBackingMap...

public class ControllerBackingMap extends ReadWriteBackingMap 
implements XmlConfigurable, MapListenerSupport.SynchronousListener {
   private XmlElement m_config;
   private volatile boolean isOkay = true;

   public ControllerBackingMap (.,.,.,...) {
       super (.,.,.,...);
   }
   ...
   public void setConfig (XmlElement xmlElement) {
      ...
      // -- Or pass the cache name as a parameter
      NamedCache nCache = CacheFactory.getCache ("ControllerCache");
      nCache.addMapListener (this);
   }
   
   public void entryInserted (MapEvent evt) {
      if (evt.getNewValue() == ....) {
         isOkay = false;
      }
   }
   
   public Object put(final Object oKey, final Object oValue) {
      ???????
   }
   ....
}

Now what? Lets say we want to disable any Cache puts if something has been inserted in the ControllerCache.. Of course expand it to any specifics keeping the controller cache model. The put () method will look like:

   public Object put(final Object oKey, final Object oValue) {
      if (!isOkay) {
        throw new RuntimeException("Operation currently blocked");
      }
      return super.put(oKey, oValue);
   }

So here you go, Enjoy!