Metric Results

[ summary ] [ packages ] [ cycles ] [ explanations ]

The following document contains the results of a JDepend metric analysis. The various metrics are defined at the bottom of this document.

Summary

[ summary ] [ packages ] [ cycles ] [ explanations ]

PackageTCCCACCaCeAIDV
com.pyx4j.log111012169.0%89.0%2.0%1
com.pyx4j.utils147731250.0%80.0%30.000002%1
com.pyx4j.utils.service3120867.0%100.0%67.0%1
com.pyx4j.utils.servlet110050.0%100.0%0.0%1

Packages

[ summary ] [ packages ] [ cycles ] [ explanations ]

com.pyx4j.log

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
2169.0%89.0%2.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
com.pyx4j.log.LogMDCConsts
com.pyx4j.log.AppenderDynamicMBean
com.pyx4j.log.DeepToStringStyle
com.pyx4j.log.Log4jJMX
com.pyx4j.log.Logger
com.pyx4j.log.LoggerDynamicMBean
com.pyx4j.log.RollingFileAppender
com.pyx4j.log.RollingFileAppender$FileListByDateComparator
com.pyx4j.log.RollingFileAppender$LogFilenameFilter
com.pyx4j.log.RollingFileAppender$RollOverLoggingEvent
com.pyx4j.log.ValueFormat
com.pyx4j.utils
com.pyx4j.utils.servlet
com.pyx4j.jni
com.pyx4j.utils
java.beans
java.io
java.lang
java.lang.management
java.lang.reflect
java.text
java.util
javax.management
org.apache.commons.lang
org.apache.commons.lang.builder
org.apache.log4j
org.apache.log4j.helpers
org.apache.log4j.jmx
org.apache.log4j.spi

com.pyx4j.utils

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
31250.0%80.0%30.000002%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
com.pyx4j.utils.AppConfiguration
com.pyx4j.utils.BackgroundService
com.pyx4j.utils.CmdArgs
com.pyx4j.utils.ResourceUpdate
com.pyx4j.utils.ScheduledTask
com.pyx4j.utils.StopableRunnable
com.pyx4j.utils.ThreadUtils
com.pyx4j.utils.DateUtils
com.pyx4j.utils.Execute
com.pyx4j.utils.Execute$StreamReaderThread
com.pyx4j.utils.ExtProperties
com.pyx4j.utils.JFigLocatorDefault
com.pyx4j.utils.ResourceChangeDetection
com.pyx4j.utils.StringUtils
com.pyx4j.log
com.pyx4j.utils.service
com.pyx4j.utils.servlet
com.pyx4j.log
java.io
java.lang
java.net
java.text
java.util
org.apache.commons.lang
org.apache.commons.lang.time
org.apache.log4j
org.apache.log4j.xml
org.igfay.jfig
org.igfay.util

com.pyx4j.utils.service

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
0867.0%100.0%67.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
com.pyx4j.utils.service.SocketAcceptorService
com.pyx4j.utils.service.ThreadEndListener
com.pyx4j.utils.service.StreamRelayer
Nonecom.pyx4j.utils
java.io
java.lang
java.net
java.util
javax.net.ssl
org.apache.commons.io
org.apache.log4j

com.pyx4j.utils.servlet

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
050.0%100.0%0.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
Nonecom.pyx4j.utils.servlet.AppConfiguratorContextListener
Nonecom.pyx4j.log
com.pyx4j.utils
java.io
java.lang
javax.servlet

Cycles

[ summary ] [ packages ] [ cycles ] [ explanations ]

PackagePackage Dependencies
com.pyx4j.logcom.pyx4j.utils
com.pyx4j.log
com.pyx4j.utilscom.pyx4j.log
com.pyx4j.utils
com.pyx4j.utils.servicecom.pyx4j.utils
com.pyx4j.log
com.pyx4j.utils
com.pyx4j.utils.servletcom.pyx4j.log
com.pyx4j.utils
com.pyx4j.log

Explanation

[ summary ] [ packages ] [ cycles ] [ explanations ]

The following explanations are for quick reference and are lifted directly from the original JDepend documentation.

TermDescription
Number of ClassesThe number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent CouplingsThe number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent CouplingsThe number of other packages that the classes in the package depend upon is an indicator of the package's independence.
AbstractnessThe ratio of the number of abstract classes (and interfaces) in the analyzed package to the total number of classes in the analyzed package. The range for this metric is 0 to 1, with A=0 indicating a completely concrete package and A=1 indicating a completely abstract package.
InstabilityThe ratio of efferent coupling (Ce) to total coupling (Ce / (Ce + Ca)). This metric is an indicator of the package's resilience to change. The range for this metric is 0 to 1, with I=0 indicating a completely stable package and I=1 indicating a completely instable package.
DistanceThe perpendicular distance of a package from the idealized line A + I = 1. This metric is an indicator of the package's balance between abstractness and stability. A package squarely on the main sequence is optimally balanced with respect to its abstractness and stability. Ideal packages are either completely abstract and stable (x=0, y=1) or completely concrete and instable (x=1, y=0). The range for this metric is 0 to 1, with D=0 indicating a package that is coincident with the main sequence and D=1 indicating a package that is as far from the main sequence as possible.
CyclesPackages participating in a package dependency cycle are in a deadly embrace with respect to reusability and their release cycle. Package dependency cycles can be easily identified by reviewing the textual reports of dependency cycles. Once these dependency cycles have been identified with JDepend, they can be broken by employing various object-oriented techniques.