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 Total
Classes
Abstract
Classes
Concrete
Classes
Afferent
Couplings
Efferent
Couplings
Abstractness Instability Distance
de.jface.mrj 4 2 2 0 0 50% 0% 50%
de.jface.remind 4 1 3 3 6 25% 67% 8%
de.jface.remind.awtui 2 0 2 2 3 0% 60% 40%
de.jface.remind.core 9 2 7 3 3 22% 50% 28%
de.jface.remind.io 11 3 8 1 11 27% 92% 19%
de.jface.remind.mrj 1 0 1 1 2 0% 67% 33%
de.jface.util 6 0 6 2 4 0% 67% 33%
com.apple.mrj No stats available: package referenced, but not analyzed.
junit.framework No stats available: package referenced, but not analyzed.
org.apache.commons.net No stats available: package referenced, but not analyzed.
org.apache.commons.net.ftp No stats available: package referenced, but not analyzed.
org.apache.log4j No stats available: package referenced, but not analyzed.
org.jdom No stats available: package referenced, but not analyzed.
org.jdom.input No stats available: package referenced, but not analyzed.
org.jdom.output No stats available: package referenced, but not analyzed.

Packages

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

de.jface.mrj

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 0 50% 0% 50%
Abstract Classes Concrete Classes Used by Packages Uses Packages
Handlers
SystemInfo
HandlersAdapter
HandlersFactory
None None

de.jface.remind

Afferent Couplings Efferent Couplings Abstractness Instability Distance
3 6 25% 67% 8%
Abstract Classes Concrete Classes Used by Packages Uses Packages
Config
Controller
Main
Model
de.jface.remind.awtui
de.jface.remind.io
de.jface.remind.mrj
com.apple.mrj
de.jface.remind.awtui
de.jface.remind.core
de.jface.remind.io
de.jface.remind.mrj
org.apache.log4j

de.jface.remind.awtui

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 3 0% 60% 40%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None NoteFrame
UserPreferencesFrame
de.jface.remind
de.jface.remind.io
de.jface.remind
de.jface.remind.core
org.apache.log4j

de.jface.remind.core

Afferent Couplings Efferent Couplings Abstractness Instability Distance
3 3 22% 50% 28%
Abstract Classes Concrete Classes Used by Packages Uses Packages
NoteContainer
NoteIterator
IllegalUniqueNumberException
Note
NoteAdminData
NoteMetaData
NoteText
UniqueNumber
UniqueNumberTest
de.jface.remind
de.jface.remind.awtui
de.jface.remind.io
de.jface.util
junit.framework
org.apache.log4j

de.jface.remind.mrj

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 2 0% 67% 33%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None MrjHandlerImpl
de.jface.remind
com.apple.mrj
de.jface.remind

de.jface.util

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 4 0% 67% 33%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None Dictionary
DictionaryTest
Key
KeyTest
SortedList
SortedListTest
de.jface.remind.core
de.jface.remind.io
junit.framework
org.jdom
org.jdom.input
org.jdom.output

Cycles

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

Package Cyclic Dependencies
de.jface.remind de.jface.remind.io
de.jface.remind
de.jface.remind.awtui de.jface.remind
de.jface.remind.io
de.jface.remind
de.jface.remind.io de.jface.remind
de.jface.remind.io
de.jface.remind.mrj de.jface.remind
de.jface.remind.io
de.jface.remind

Explanations

[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.