System-property in param-value?

Question

Hi all,
Is it possible to use a system-property override in a param-value element in the cache config? It doesn't seem to work for me. I have this:
<cache-mapping>
<cache-name>foo</cache-name>
<scheme-name>default-near</scheme-name>
<init-params>
<init-param>
<param-name>default-near-expiry-delay</param-name>
<param-value system-property="foo.expiry-delay"/>
</init-param>
</init-params>
</cache-mapping>
Setting -Dfoo.expiry-delay=1m on the command line doesn't take effect. I've also tried putting a default in param-value and it works, but not the override. What I'm trying to do is use the same scheme for different caches, but parameterize the expiry for each.
thanks
john

Answer 1

I just ran in to an inconvenient quirk. I thought I would be nice to add system properties for a number of caches so they will be there when I need them. I had something like this:
In the cache mapping:
<param-name>expiry-delay</param-name>
<param-value system-property="foo.expiry-delay"/>
In the scheme:
<expiry-delay>{expiry-delay 5m}</expiry-delay>
If I don't specify the foo.expiry-delay system property at all, I would like to get the default, but instead I get a NumberFormatException:
java.lang.NumberFormatException: passed String ("") must contain a number
at com.tangosol.util.Base.parseTime(Base.java:2756)
at com.tangosol.net.DefaultConfigurableCacheFactory.instantiateLocalCache(DefaultConfigurableCacheFactory.java:1
384)
at com.tangosol.net.DefaultConfigurableCacheFactory.configureBackingMap(DefaultConfigurableCacheFactory.java:969
at com.tangosol.net.DefaultConfigurableCacheFactory.configureCache(DefaultConfigurableCacheFactory.java:839)
at com.tangosol.net.DefaultConfigurableCacheFactory.ensureCache(DefaultConfigurableCacheFactory.java:284)
at com.tangosol.net.CacheFactory.getCache(CacheFactory.java:606)
at com.tangosol.coherence.component.application.console.Coherence.doCache(Coherence.CDB:15)
at com.tangosol.coherence.component.application.console.Coherence.processCommand(Coherence.CDB:192)
at com.tangosol.coherence.component.application.console.Coherence.run(Coherence.CDB:39)
at com.tangosol.coherence.component.application.console.Coherence.main(Coherence.CDB:3)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.tangosol.util.ClassHelper.invoke(ClassHelper.java:746)
at com.tangosol.util.ClassHelper.invokeStatic(ClassHelper.java:689)
at com.tangosol.net.CacheFactory.main(CacheFactory.java:1115)
thanks