hierarchical deletion not working with DiskUsagePatternName=UPDATE
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Key: JCS-45
URL: https://issues.apache.org/jira/browse/JCS-45
Project: JCS
Issue Type: Bug
Components: Indexed Disk Cache
Affects Versions: jcs-1.3
Reporter: Philip Johnson
Assignee: Aaron Smuts
The documentation explains that it is possible to do "hierarchical deletion"
using keys with colon separators:
<http://jakarta.apache.org/jcs/faq.html#hierarchical-removal>
I would like this feature, but it appears to be broken when
DiskUsagePatternName is specified as UPDATE. I am using Java 1.6 on Windows.
Below is a short test program that illustrates the behavior. When I run this
program without changes, it prints out "OK" two times. When I uncomment the
setProperty() line in makeProps() and re-run the program, it prints out
"Error!" twice.
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import java.util.Properties;
import org.apache.jcs.JCS;
import org.apache.jcs.engine.control.CompositeCacheManager;
public class JcsProblem {
private static Properties makeProps() {
Properties props = new Properties();
props.setProperty("jcs.region.foo", "DC");
props.setProperty("jcs.region.foo.cacheattributes",
"org.apache.jcs.engine.CompositeCacheAttributes");
props.setProperty("jcs.region.foo.MemoryCacheName",
"org.apache.jcs.engine.memory.lru.LRUMemoryCache");
// Uncomment the following line to make hierarchical removal not work.
// props.setProperty("jcs.region.foo.cacheattributes.DiskUsagePatternName",
"UPDATE");
props.setProperty("jcs.auxiliary.DC",
"org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheFactory");
props.setProperty("jcs.auxiliary.DC.attributes",
"org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheAttributes");
props.setProperty("jcs.auxiliary.DC.attributes.DiskPath",
System.getProperty("user.dir"));
return props;
}
public static void main(String[] args) throws Exception {
CompositeCacheManager ccm = CompositeCacheManager.getUnconfiguredInstance();
ccm.configure(makeProps());
JCS cache = JCS.getInstance("foo");
cache.put("foo:bar:baz", "one");
cache.put("foo:bar:qux", "two");
cache.put("bar:quxx", "three");
cache.remove("foo:bar:");
System.out.println(((cache.get("foo:bar:baz") == null) ? "OK" : "Error!"));
System.out.println(((cache.get("foo:bar:qux") == null) ? "OK" : "Error!"));
}
}
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