Mercurial > hg > blitz_condensed
diff examples/entrysizer/TestSizer.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/examples/entrysizer/TestSizer.java Sat Mar 21 11:00:06 2009 +0000 @@ -0,0 +1,41 @@ +package entrysizer; + +import net.jini.core.entry.Entry; + +import org.dancres.blitz.mangler.EntrySizer; + +/** + This class demonstrates how to use the Blitz EntrySizer which can be + used to give an approximate size for an Entry once it's marshalled and + ready for storage in the Blitz backend. This is useful for sizing heap, + caches and disk storage (for a persistent or time-barrier-persistent + Blitz). + */ +public class TestSizer { + public static void main(String args[]) { + try { + /* + Create an EntrySizer instance (EntrySizer is stateless) + */ + EntrySizer mySizer = new EntrySizer(); + + /* + Create some example Entry's + */ + Entry[] myEntrys = new Entry[] {new DummyEntry("a"), + new DummyEntry("abcdefgh"), + new DummyEntry(null)}; + + /* + For each example, get a size estimate from the Sizer. + */ + for (int i = 0; i < myEntrys.length; i++) { + System.out.println("Size of: " + myEntrys[i] + " = " + + mySizer.computeSize(myEntrys[i])); + } + } catch (Exception anE) { + System.err.println("Whoops, didn't work"); + anE.printStackTrace(System.err); + } + } +}