Compacting the cache-config.xml for multiple cache-store

Question

Hi,
I have a cache-config.xml that has various ReadWriteBackingMaps with different CacheLoader implementations. I was wondering of the best way to compact this xml using the scheme-ref tag, as all I really need is schemes, with different cache stores. e.g. I have an InstrumentCacheStore and a CurrencyCacheStore .. which invoke different CacheLoaders. they are both distributed caches.
I thought the below would work, but it dosen't.. :( when loading a currency, the InstrumentCacheStore gets invoked.
is there a way to compact this XML? Else, for 6 different cache loaders that I have, do I have to specify the whole distributed-scheme again and again?
<cache-config>
<caching-scheme-mapping>
<cache-mapping>
<cache-name>instrument-*</cache-name>
<scheme-name>distributed-instrument-scheme</scheme-name>
</cache-mapping>
<cache-mapping>
<cache-name>currency-*</cache-name>
<scheme-name>distributed-currency-scheme</scheme-name>
</cache-mapping>
</caching-scheme-mapping>
<caching-schemes>
<distributed-scheme>
<scheme-name>distributed-instrument-scheme</scheme-name>
<scheme-ref>distributed-scheme</scheme-ref>
</distributed-scheme>
<distributed-scheme>
<scheme-name>distributed-currency-scheme</scheme-name>
<scheme-ref>distributed-scheme</scheme-ref>
<!-- THIS DOES NOT OVERRIDE THE DEFAULT distributed-scheme? -->
<cachestore-scheme>
<class-scheme>
<class-name>coherence.cachestore.CurrencyCacheStore</class-name>
</class-scheme>
</cachestore-scheme>
</distributed-scheme>
<distributed-scheme>
<scheme-name>distributed-scheme</scheme-name>
<service-name>DistributedCache</service-name>
<backing-map-scheme>
<read-write-backing-map-scheme>
<internal-cache-scheme>
<local-scheme>
<scheme-ref>LocalSizeLimited</scheme-ref>
</local-scheme>
</internal-cache-scheme>
<cachestore-scheme>
<class-scheme>
<class-name>coherence.cachestore.InstrumentCacheStore</class-name>
</class-scheme>
</cachestore-scheme>
</read-write-backing-map-scheme>
</backing-map-scheme>
<serializer>
<class-name>com.tangosol.io.pof.ConfigurablePofContext</class-name>
</serializer>
<partition-count>5557</partition-count>
<backup-count>1</backup-count>
<thread-count>10</thread-count>
<autostart>true</autostart>
</distributed-scheme>
<local-scheme>
<scheme-name>LocalSizeLimited</scheme-name>
<high-units>500000000</high-units>
<low-units>10000</low-units>
<unit-calculator>BINARY</unit-calculator>
</local-scheme>
</caching-schemes>
</cache-config>
--------------------------------------------------------------------------------------------------------------

Answer 1

There are two possible ways to sort this out
1. The cache configuration for the distributed-currency-scheme shown in the original post is wrong and does not correctly override the cache store, it should look like this:.
<distributed-scheme>
  <scheme-name>distributed-currency-scheme</scheme-name>
  <scheme-ref>distributed-scheme</scheme-ref>
  <backing-map-scheme>
    <read-write-backing-map-scheme>
      <internal-cache-scheme>
        <local-scheme>
          <scheme-ref>LocalSizeLimited</scheme-ref>
        </local-scheme>
      </internal-cache-scheme>
      <cachestore-scheme>
        <class-scheme>
          <class-name>coherence.examples.CurrencyCacheStore</class-name>
        </class-scheme>
      </cachestore-scheme>
    </read-write-backing-map-scheme>
  </backing-map-scheme>
</distributed-scheme> 2. You can use a single scheme and parameterise it like this:
<?xml version="1.0"?>
<!DOCTYPE cache-config SYSTEM "cache-config.dtd">
<cache-config>
  <caching-scheme-mapping>
    <cache-mapping>
      <cache-name>instrument-*</cache-name>
      <scheme-name>distributed-scheme</scheme-name>
      <init-params>
        <init-param>
          <param-name>cache-store-class-name</param-name>
          <param-value>coherence.examples.InstrumentCacheStore</param-value>
        </init-param>
      </init-params>
    </cache-mapping>
    <cache-mapping>
      <cache-name>currency-*</cache-name>
      <scheme-name>distributed-scheme</scheme-name>
      <init-params>
        <init-param>
          <param-name>cache-store-class-name</param-name>
          <param-value>coherence.examples.CurrencyCacheStore</param-value>
        </init-param>
      </init-params>
    </cache-mapping>
  </caching-scheme-mapping>
  <caching-schemes>
    <distributed-scheme>
      <scheme-name>distributed-scheme</scheme-name>
      <service-name>DistributedCache</service-name>
      <backing-map-scheme>
        <read-write-backing-map-scheme>
          <internal-cache-scheme>
            <local-scheme>
              <scheme-ref>LocalSizeLimited</scheme-ref>
            </local-scheme>
          </internal-cache-scheme>
          <cachestore-scheme>
            <class-scheme>
              <class-name>{cache-store-class-name}</class-name>
            </class-scheme>
          </cachestore-scheme>
        </read-write-backing-map-scheme>
      </backing-map-scheme>
      <serializer>
        <class-name>com.tangosol.io.pof.ConfigurablePofContext</class-name>
      </serializer>
      <partition-count>5557</partition-count>
      <backup-count>1</backup-count>
      <thread-count>10</thread-count>
      <autostart>true</autostart>
    </distributed-scheme>
    <local-scheme>
      <scheme-name>LocalSizeLimited</scheme-name>
      <high-units>500000000</high-units>
      <low-units>10000</low-units>
      <unit-calculator>BINARY</unit-calculator>
    </local-scheme>
  </caching-schemes>
</cache-config>Parameter names from the init-params part of each cache mapping can be used inside curly brackets in the cache scheme part.
Hope that helps,
JK