The coherence.xml custom resource file specifies a subset of the configuration options that control call-state storage. The config.xml file specifies the custom resource file as $domain_home/config/custom/coherence.xml. The entry in the config.xml file looks like this:

<custom-resource>
    <name>coherence</name>
    <target>BEA_ENGINE_TIER_CLUST</target>
    <descriptor-file-name>custom/coherence.xml</descriptor-file-name>
    <resource-class>com.bea.wcp.sip.management.descriptor.
        resource.CoherenceStorageResource</resource-class>
    <descriptor-bean-class>oracle.occas.management.descriptor.beans.
        storage.CoherenceStorageBean</descriptor-bean-class>
</custom-resource>

The following parameters describe the coherence.xml file. They define a default call-state storage domain.

<?xml version='1.0' encoding='UTF-8'?>
<coherence-storage>
  <cache-config>
    <thread-count>20</thread-count>
    <partition-count>257</partition-count>
  </cache-config>
</coherence-storage>