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
org.bitrepository.commandline6601220.0%96.0%4.0%1
org.bitrepository.commandline.output2112450.0%67.0%17.0%1
org.bitrepository.commandline.utils2201120.0%92.0%8.0%1

Packages

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

org.bitrepository.commandline

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
1220.0%96.0%4.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
Noneorg.bitrepository.commandline.Constants
org.bitrepository.commandline.DeleteFile
org.bitrepository.commandline.GetChecksums
org.bitrepository.commandline.GetFile
org.bitrepository.commandline.GetFileIDs
org.bitrepository.commandline.PutFile
org.bitrepository.commandline.utils
java.io
java.lang
java.net
java.util
org.apache.commons.cli
org.bitrepository.access
org.bitrepository.access.getchecksums
org.bitrepository.access.getfile
org.bitrepository.access.getfileids
org.bitrepository.bitrepositoryelements
org.bitrepository.client.eventhandler
org.bitrepository.commandline.output
org.bitrepository.commandline.utils
org.bitrepository.common.settings
org.bitrepository.common.utils
org.bitrepository.modify
org.bitrepository.modify.deletefile
org.bitrepository.modify.putfile
org.bitrepository.protocol
org.bitrepository.protocol.http
org.bitrepository.protocol.security
org.bitrepository.settings.collectionsettings

org.bitrepository.commandline.output

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
2450.0%67.0%17.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
org.bitrepository.commandline.output.OutputHandler
org.bitrepository.commandline.output.DefaultOutputHandler
org.bitrepository.commandline
org.bitrepository.commandline.utils
java.io
java.lang
org.bitrepository.client.eventhandler
org.slf4j

org.bitrepository.commandline.utils

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
1120.0%92.0%8.0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
Noneorg.bitrepository.commandline.utils.CommandLineArgumentsHandler
org.bitrepository.commandline.utils.CompleteEventAwaiter
org.bitrepository.commandline
java.lang
java.math
java.util
java.util.concurrent
org.apache.commons.cli
org.bitrepository.client.eventhandler
org.bitrepository.commandline
org.bitrepository.commandline.output
org.bitrepository.common
org.bitrepository.common.settings
org.bitrepository.protocol.security
org.bitrepository.settings.collectionsettings

Cycles

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

PackagePackage Dependencies
org.bitrepository.commandlineorg.bitrepository.commandline.utils
org.bitrepository.commandline
org.bitrepository.commandline.utilsorg.bitrepository.commandline
org.bitrepository.commandline.utils

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.