Metric Results

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

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

Summary

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

Package TC AC CC AC EC A I D
jargs.gnu 927130,2275%3%
net.sf.whatsnew 10126075%25%
net.sf.whatsnew.ant 101070100%0%
net.sf.whatsnew.config 10113075%25%
net.sf.whatsnew.console 101070100%0%
net.sf.whatsnew.exceptions 20293025%75%
net.sf.whatsnew.filter 33033150%50%
net.sf.whatsnew.filter.impl 90917088%12%
net.sf.whatsnew.filter.util 10123060%40%
net.sf.whatsnew.lang 10122050%50%
net.sf.whatsnew.mode 11056155%55%
net.sf.whatsnew.mode.impl 202111092%8%
net.sf.whatsnew.options 615540,1744%39%
org.apache.commons.lang 20212067%33%

Packages

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

net.sf.whatsnew

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
260%75%25%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

net.sf.whatsnew.ant

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
070%100%0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None None

net.sf.whatsnew.config

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
130%75%25%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

net.sf.whatsnew.console

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
070%100%0%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None None

net.sf.whatsnew.filter

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
33100%50%50%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

net.sf.whatsnew.filter.util

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
230%60%40%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

net.sf.whatsnew.lang

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
220%50%50%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

net.sf.whatsnew.mode

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
56100%55%55%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

org.apache.commons.lang

Afferent CouplingsEfferent CouplingsAbstractnessInstabilityDistance
120%67%33%
Abstract ClassesConcrete ClassesUsed by PackagesUses Packages
None

Cycles

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

PackageCyclic Dependencies
net.sf.whatsnew
  • net.sf.whatsnew.mode
  • net.sf.whatsnew.options
  • net.sf.whatsnew.mode
net.sf.whatsnew.ant
  • net.sf.whatsnew.mode
  • net.sf.whatsnew.options
  • net.sf.whatsnew.mode
net.sf.whatsnew.console
  • net.sf.whatsnew.mode
  • net.sf.whatsnew.options
  • net.sf.whatsnew.mode
net.sf.whatsnew.mode
  • net.sf.whatsnew.options
  • net.sf.whatsnew.mode
net.sf.whatsnew.mode.impl
  • net.sf.whatsnew.options
  • net.sf.whatsnew.mode
  • net.sf.whatsnew.options
net.sf.whatsnew.options
  • net.sf.whatsnew.mode
  • net.sf.whatsnew.options

Explanations

[ 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.