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	TC	CC	AC	Ca	Ce	A	I	D	V
io.github.prolobjectlink.prolog.jtrolog	38	37	1	0	13	3.0%	100.0%	3.0%	1
jTrolog.engine	18	18	0	4	8	0.0%	67.0%	33.0%	1
jTrolog.errors	4	4	0	5	1	0.0%	17.0%	83.0%	1
jTrolog.lib	6	5	1	2	7	17.0%	78.0%	6.0%	1
jTrolog.parser	5	5	0	4	7	0.0%	64.0%	36.0%	1
jTrolog.terms	18	14	4	4	6	22.0%	60.000004%	18.0%	1

Packages

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

io.github.prolobjectlink.prolog.jtrolog

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	13	3.0%	100.0%	3.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
io.github.prolobjectlink.prolog.jtrolog.JTrologTerm	io.github.prolobjectlink.prolog.jtrolog.JTrolog io.github.prolobjectlink.prolog.jtrolog.JTrologAtom io.github.prolobjectlink.prolog.jtrolog.JTrologClause io.github.prolobjectlink.prolog.jtrolog.JTrologClauses io.github.prolobjectlink.prolog.jtrolog.JTrologConsole io.github.prolobjectlink.prolog.jtrolog.JTrologConverter io.github.prolobjectlink.prolog.jtrolog.JTrologCut io.github.prolobjectlink.prolog.jtrolog.JTrologDouble io.github.prolobjectlink.prolog.jtrolog.JTrologEmpty io.github.prolobjectlink.prolog.jtrolog.JTrologEngine io.github.prolobjectlink.prolog.jtrolog.JTrologEntry io.github.prolobjectlink.prolog.jtrolog.JTrologFail io.github.prolobjectlink.prolog.jtrolog.JTrologFalse io.github.prolobjectlink.prolog.jtrolog.JTrologFloat io.github.prolobjectlink.prolog.jtrolog.JTrologFormatter io.github.prolobjectlink.prolog.jtrolog.JTrologIndicator io.github.prolobjectlink.prolog.jtrolog.JTrologInteger io.github.prolobjectlink.prolog.jtrolog.JTrologJavaConverter io.github.prolobjectlink.prolog.jtrolog.JTrologList io.github.prolobjectlink.prolog.jtrolog.JTrologList$1 io.github.prolobjectlink.prolog.jtrolog.JTrologList$JTrologListIter io.github.prolobjectlink.prolog.jtrolog.JTrologLogger io.github.prolobjectlink.prolog.jtrolog.JTrologLong io.github.prolobjectlink.prolog.jtrolog.JTrologMap io.github.prolobjectlink.prolog.jtrolog.JTrologMap$1 io.github.prolobjectlink.prolog.jtrolog.JTrologMap$PrologMapIterator io.github.prolobjectlink.prolog.jtrolog.JTrologNil io.github.prolobjectlink.prolog.jtrolog.JTrologOperator io.github.prolobjectlink.prolog.jtrolog.JTrologOperatorSet io.github.prolobjectlink.prolog.jtrolog.JTrologProgram io.github.prolobjectlink.prolog.jtrolog.JTrologQuery io.github.prolobjectlink.prolog.jtrolog.JTrologReference io.github.prolobjectlink.prolog.jtrolog.JTrologScriptFactory io.github.prolobjectlink.prolog.jtrolog.JTrologStructure io.github.prolobjectlink.prolog.jtrolog.JTrologTrue io.github.prolobjectlink.prolog.jtrolog.JTrologUtil io.github.prolobjectlink.prolog.jtrolog.JTrologVariable	None	io.github.prolobjectlink.prolog jTrolog.engine jTrolog.errors jTrolog.lib jTrolog.parser jTrolog.terms java.io java.lang java.lang.reflect java.text java.util java.util.logging javax.script

jTrolog.engine

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
4	8	0.0%	67.0%	33.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	jTrolog.engine.BindingsTable jTrolog.engine.BindingsTable$Copier jTrolog.engine.BindingsTable$StructListIterator jTrolog.engine.ChoicePoint jTrolog.engine.ClauseDatabase jTrolog.engine.ClauseDatabase$CompleteIterator jTrolog.engine.DefaultProlog jTrolog.engine.Engine jTrolog.engine.Engine$StackIterator jTrolog.engine.GarbageCan jTrolog.engine.LibraryAndTheoryManager jTrolog.engine.LinkTable jTrolog.engine.OperatorTable jTrolog.engine.OperatorTable$OperatorIterator jTrolog.engine.PrimitiveInfo jTrolog.engine.Prolog jTrolog.engine.Solution jTrolog.engine.SolutionManager	io.github.prolobjectlink.prolog.jtrolog jTrolog.lib jTrolog.parser jTrolog.terms	jTrolog.errors jTrolog.lib jTrolog.parser jTrolog.terms java.io java.lang java.lang.reflect java.util

jTrolog.errors

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
5	1	0.0%	17.0%	83.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	jTrolog.errors.InvalidLibraryException jTrolog.errors.InvalidTermException jTrolog.errors.NoMorePrologSolutions jTrolog.errors.PrologException	io.github.prolobjectlink.prolog.jtrolog jTrolog.engine jTrolog.lib jTrolog.parser jTrolog.terms	java.lang

jTrolog.lib

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
2	7	17.0%	78.0%	6.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
jTrolog.lib.Library	jTrolog.lib.BasicLibrary jTrolog.lib.BuiltIn jTrolog.lib.DCGLibrary jTrolog.lib.IOLibrary jTrolog.lib.ISOLibrary	io.github.prolobjectlink.prolog.jtrolog jTrolog.engine	jTrolog.engine jTrolog.errors jTrolog.parser jTrolog.terms java.io java.lang java.util

jTrolog.parser

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
4	7	0.0%	64.0%	36.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
None	jTrolog.parser.Parser jTrolog.parser.TermIterator jTrolog.parser.Token jTrolog.parser.Tokenizer jTrolog.parser.Tokenizer$PushBack	io.github.prolobjectlink.prolog.jtrolog jTrolog.engine jTrolog.lib jTrolog.terms	jTrolog.engine jTrolog.errors jTrolog.terms java.io java.lang java.util java.util.regex

jTrolog.terms

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
4	6	22.0%	60.000004%	18.0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
jTrolog.terms.EvaluableTerm jTrolog.terms.Number jTrolog.terms.Term jTrolog.terms.Wrapper	jTrolog.terms.Clause jTrolog.terms.Double jTrolog.terms.Flag jTrolog.terms.Float jTrolog.terms.Int jTrolog.terms.IteratorAsTerm jTrolog.terms.ListIterator jTrolog.terms.Long jTrolog.terms.Struct jTrolog.terms.StructAtom jTrolog.terms.Var jTrolog.terms.WrapStruct jTrolog.terms.WrapVar jTrolog.terms.Wrapper$WrappedIterator	io.github.prolobjectlink.prolog.jtrolog jTrolog.engine jTrolog.lib jTrolog.parser	jTrolog.engine jTrolog.errors jTrolog.parser java.io java.lang java.util

Cycles

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

Package	Package Dependencies
io.github.prolobjectlink.prolog.jtrolog	jTrolog.engine jTrolog.terms jTrolog.parser jTrolog.engine
jTrolog.engine	jTrolog.terms jTrolog.parser jTrolog.engine
jTrolog.lib	jTrolog.engine jTrolog.terms jTrolog.parser jTrolog.engine
jTrolog.parser	jTrolog.engine jTrolog.terms jTrolog.parser
jTrolog.terms	jTrolog.parser jTrolog.engine jTrolog.terms

Explanation

[ 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.