util - JDepend Source Code Analysis

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
jface.util	12	1	11	4	10	0,08	71%	20%
jface.util.dom4j	3	0	3	0	5	0	100%	0%
jface.util.factory	12	2	10	0	10	0,17	100%	17%
jface.util.io	8	1	7	0	5	0,12	100%	12%
jface.util.logging	20	2	18	0	3	0,1	100%	10%
jface.util.text	3	0	3	0	2	0	100%	0%
jface.util.xml	5	0	5	0	6	0	100%	0%

Packages

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

jface.util

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
4	10	8%	71%	20%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
Bag	Asserts Asserts$Diff Asserts$XmlObject Asserts$XmlObject$Characters Asserts$XmlObject$EndElement Asserts$XmlObject$StartElement LinkedHashBag Objects Singleton Strings Strings$Replacement	jface.util.dom4j jface.util.factory jface.util.io jface.util.xml	java.io java.lang java.lang.reflect java.text java.util javax.xml.parsers junit.framework org.apache.commons.logging org.xml.sax org.xml.sax.helpers

jface.util.dom4j

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	5	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
	BuildException ConfigureException ObjectBuilder		java.lang java.util jface.util org.apache.commons.logging org.dom4j

jface.util.factory

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	10	17%	100%	17%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
Singleton XmlWritable	FactoryException ObjectManager ObjectManager$1 ObjectManager$PropertyManager XmlObjectFactory XmlObjectFactory$1 XmlObjectFactory$ClassInstanceManager XmlObjectFactory$FactoryInstanceManager XmlObjectFactory$InstanceManager XmlObjectWriter		java.io java.lang java.lang.reflect java.net java.util jface.util org.apache.commons.lang org.apache.commons.lang.exception org.dom4j org.dom4j.io

jface.util.io

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	5	12%	100%	12%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
FileChangeListener	CsvReader FileChangeEvent FileObserver FileObserver$1 FileObserver$ObserverObject FileObserver$ObserverThread UndefinedValueException		java.io java.lang java.util jface.util org.apache.commons.logging

jface.util.logging

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	3	10%	100%	10%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
LogProxy$LogHandler LogProxy2$LogHandler	LogProxy LogProxy$1 LogProxy$DebugHandler LogProxy$ErrorHandler LogProxy$FatalHandler LogProxy$InfoHandler LogProxy$LogInvocationHandler LogProxy$TraceHandler LogProxy$WarnHandler LogProxy2 LogProxy2$1 LogProxy2$DebugHandler LogProxy2$ErrorHandler LogProxy2$FatalHandler LogProxy2$InfoHandler LogProxy2$LogInvocationHandler LogProxy2$TraceHandler LogProxy2$WarnHandler		java.lang java.lang.reflect org.apache.commons.logging

jface.util.text

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	2	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
	ComposeableFormat ComposeableFormat$1 ComposeableFormat$Placeholder		java.lang java.util

jface.util.xml

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	6	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
	StringSource XPathHandler XPathHandler$1 XPathHandler$XPathObject XPathHandler$XPathStack		java.io java.lang java.util jface.util org.xml.sax org.xml.sax.helpers

Cycles

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

There are no cyclic dependencies.

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.