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 ]

Package TC CC AC Ca Ce A I D V
eu.medsea.mimeutil 8 8 0 2 11 0.0% 85.0% 15.000001% 1
eu.medsea.mimeutil.detector 14 12 2 1 10 14.0% 91.0% 5.0% 1
eu.medsea.mimeutil.handler 1 0 1 1 2 100.0% 67.0% 67.0% 1
eu.medsea.util 3 3 0 2 7 0.0% 78.0% 22.0% 1

Packages

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

eu.medsea.mimeutil

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 11 0.0% 85.0% 15.000001%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None eu.medsea.mimeutil.MimeDetectorRegistry
eu.medsea.mimeutil.MimeException
eu.medsea.mimeutil.MimeType
eu.medsea.mimeutil.MimeTypeHashSet
eu.medsea.mimeutil.MimeUtil
eu.medsea.mimeutil.MimeUtil2
eu.medsea.mimeutil.TextMimeDetector
eu.medsea.mimeutil.TextMimeType
eu.medsea.mimeutil.detector
eu.medsea.mimeutil.handler
eu.medsea.mimeutil.detector
eu.medsea.mimeutil.handler
eu.medsea.util
java.io
java.lang
java.net
java.nio
java.util
java.util.regex
java.util.zip
org.slf4j

eu.medsea.mimeutil.detector

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 10 14.0% 91.0% 5.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
eu.medsea.mimeutil.detector.FileWatcher
eu.medsea.mimeutil.detector.MimeDetector
eu.medsea.mimeutil.detector.ExtensionMimeDetector
eu.medsea.mimeutil.detector.InvalidMagicMimeEntryException
eu.medsea.mimeutil.detector.MagicMimeEntry
eu.medsea.mimeutil.detector.MagicMimeEntryOperation
eu.medsea.mimeutil.detector.MagicMimeMimeDetector
eu.medsea.mimeutil.detector.MatchingMagicMimeEntry
eu.medsea.mimeutil.detector.OpendesktopMimeDetector
eu.medsea.mimeutil.detector.OpendesktopMimeDetector$1
eu.medsea.mimeutil.detector.OpendesktopMimeDetector$2
eu.medsea.mimeutil.detector.OpendesktopMimeDetector$WeightedMimeType
eu.medsea.mimeutil.detector.WindowsRegistryMimeDetector
eu.medsea.mimeutil.detector.WindowsRegistryMimeDetector$StreamReader
eu.medsea.mimeutil
eu.medsea.mimeutil
eu.medsea.util
java.io
java.lang
java.net
java.nio
java.nio.channels
java.util
java.util.regex
org.slf4j

eu.medsea.mimeutil.handler

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 2 100.0% 67.0% 67.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
eu.medsea.mimeutil.handler.TextMimeHandler
None eu.medsea.mimeutil
eu.medsea.mimeutil
java.lang

eu.medsea.util

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 7 0.0% 78.0% 22.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None eu.medsea.util.EncodingGuesser
eu.medsea.util.StringUtil
eu.medsea.util.ZipJarUtil
eu.medsea.mimeutil
eu.medsea.mimeutil.detector
java.io
java.lang
java.net
java.nio.charset
java.util
java.util.zip
org.slf4j

Cycles

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

Package Package Dependencies
eu.medsea.mimeutil eu.medsea.mimeutil.detector
eu.medsea.mimeutil
eu.medsea.mimeutil.detector eu.medsea.mimeutil
eu.medsea.mimeutil.detector
eu.medsea.mimeutil.handler eu.medsea.mimeutil
eu.medsea.mimeutil.detector
eu.medsea.mimeutil

Explanation

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

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

Term Description
Number of Classes The number of concrete and abstract classes (and interfaces) in the package is an indicator of the extensibility of the package.
Afferent Couplings The number of other packages that depend upon classes within the package is an indicator of the package's responsibility.
Efferent Couplings The number of other packages that the classes in the package depend upon is an indicator of the package's independence.
Abstractness The 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.
Instability The 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.
Distance The 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.
Cycles Packages 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.