How to inherit tangsol-coherence.xml file?

Hi Guys,
I know we can override the tangsol-coherence.xml by using -Dtangosol.coherence.override property to have our own file, But what I would like to know is like in java you can inherit from the super class to make a more specific generalized class, similarly do we have a way to use tangsol-coherence.xml (as a super class) and only define a file to have things that we require to override(more specific subclass)?
It would be great if you can let me know if this is possible in Coherence 3.6 version.
Thanks,
Yogendra.

Hi Yogendra,
Your override file does inherit from the tangsol-coherence.xml file even though you do not explicitly say so anywhere. In your override file you only need to include the actual XML fragements you want to override.
E.G. If you look at the override file from the Incubator COmmons project it looks like this:
<coherence>
    <configurable-cache-factory-config>
        <class-name>com.oracle.coherence.environment.extensible.ExtensibleEnvironment</class-name>
        <init-params>
            <init-param>
                <param-type>java.lang.String</param-type>
                <param-value system-property="tangosol.coherence.cacheconfig">coherence-cache-config.xml</param-value>
            </init-param>
        </init-params>
    </configurable-cache-factory-config>
</coherence>as it only needs to override the configurable-cache-factory-config settings.
There is actually a hierarchy of configuration files depending on whether you have specified the -Dtangosol.coherence.override
If you have not specified -Dtangosol.coherence.override the hierarchy of files is like this
tangsol-coherence.xml
|-- tangosol-coherence-override-{mode}.xml    (where {mode} is set by -Dtangosol.coherence.mode and defaults to dev)
         |-- tangosol-coherence-override.xmlIf you have specified -Dtangosol.coherence.override the hierarchy of files is like this
tangsol-coherence.xml
|-- file specified in -Dtangosol.coherence.override What Coherence basically does is loads in the tangsol-coherence.xml file then reads in the override files and applies those over the top, so in effect all the override files do extend tangsol-coherence.xml
JK

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