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
jsdsi 74 13 61 5 12 0.18 71% 12%
jsd si.certstore 6 2 4 3 6 0.33 67% 0%
jsdsi.certstore.jdbc 2 0 2 0 11 0 100% 0%
jsdsi.ldap 8 0 8 0 11 0 100% 0%
jsdsi.sexp 20 3 17 4 10 0.15 71% 14%
jsdsi.util 18 2 16 3 11 0.11 79% 10%
jsdsi.xml 4 0 4 1 7 0 88% 12%

Packages

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

jsdsi.xml

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 7 0% 88% 12%
Abstract Classes Concrete Classes Used by Packages Uses Packages
XmlReader

XmlReader$Handler

XmlReader$Handler$ListMaker

XmlWriter

jsdsi

java.io

java.lang

java.util

javax.xml.parsers

jsdsi.sexp

org.xml.sax

org.xml.sax.helpers

Cycles

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

Package Cyclic Dependencies
jsdsi jsdsi.sexp

jsdsi

jsdsi.certstore jsdsi

jsdsi.sexp

jsdsi

jsdsi.certstore.jdbc jsdsi

jsdsi.sexp

jsdsi

jsdsi.ldap jsdsi

jsdsi.sexp

jsdsi

jsdsi.sexp jsdsi

jsdsi.sexp

jsdsi.util jsdsi

jsdsi.sexp

jsdsi

jsdsi.xml jsdsi.sexp

jsdsi

jsdsi.sexp

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 Clas ses 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 a re 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.