alma.acs.classloading

Class JarOrderOptimizer

java.lang.Object

alma.acs.classloading.JarOrderOptimizer

All Implemented Interfaces:

java.util.Comparator<java.io.File>

public class JarOrderOptimizer
extends java.lang.Object
implements java.util.Comparator<java.io.File>

Helps sort a list of jar files so that more important jar files appear first. The more important jar files are listed in #orderedAcsJarNames and optionally also in the property acs.system.classpath.appltopjars.

The classloader will then not have to read through unimportant jar files first, which should improve class loading performance on IO-challenged machines.

Author:

hsommer created Sep 21, 2004 2:28:51 PM

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	ACS_TOP_JARS_FILENAME The name of the file in the alma.acs.classloading package with the list of top jars
static java.lang.String	PROPERTY_APPLICATION_TOPJARS

Method Summary

Modifier and Type	Method and Description
int	compare(java.io.File f1, java.io.File f2)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Field Detail

PROPERTY_APPLICATION_TOPJARS

public static final java.lang.String PROPERTY_APPLICATION_TOPJARS

See Also:

Constant Field Values

ACS_TOP_JARS_FILENAME

public static final java.lang.String ACS_TOP_JARS_FILENAME

The name of the file in the alma.acs.classloading package with the list of top jars

See Also:

Constant Field Values

Method Detail

compare

public int compare(java.io.File f1,
                   java.io.File f2)

Specified by:

compare in interface java.util.Comparator<java.io.File>