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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
org.apache.commons.codec 11 5 6 5 3 55.0% 38.0% 8.0% 1
org.apache.commons.codec.binary 13 12 1 2 6 8.0% 75.0% 17.0% 1
org.apache.commons.codec.digest 7 7 0 0 7 0.0% 100.0% 0.0% 1
org.apache.commons.codec.language 16 14 2 0 4 12.0% 100.0% 12.0% 1
org.apache.commons.codec.language.bm 30 27 3 0 5 10.0% 100.0% 10.0% 1
org.apache.commons.codec.net 6 5 1 0 6 17.0% 100.0% 17.0% 1

Packages

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

org.apache.commons.codec

Afferent Couplings Efferent Couplings Abstractness Instability Distance
5 3 55.0% 38.0% 8.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.codec.BinaryDecoder
org.apache.commons.codec.BinaryEncoder
org.apache.commons.codec.Decoder
org.apache.commons.codec.Encoder
org.apache.commons.codec.StringDecoder
org.apache.commons.codec.StringEncoder
org.apache.commons.codec.CharEncoding
org.apache.commons.codec.Charsets
org.apache.commons.codec.DecoderException
org.apache.commons.codec.EncoderException
org.apache.commons.codec.StringEncoderComparator
org.apache.commons.codec.binary
org.apache.commons.codec.digest
org.apache.commons.codec.language
org.apache.commons.codec.language.bm
org.apache.commons.codec.net
java.lang
java.nio.charset
java.util

org.apache.commons.codec.binary

Afferent Couplings Efferent Couplings Abstractness Instability Distance
2 6 8.0% 75.0% 17.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.codec.binary.BaseNCodec
org.apache.commons.codec.binary.Base32
org.apache.commons.codec.binary.Base32InputStream
org.apache.commons.codec.binary.Base32OutputStream
org.apache.commons.codec.binary.Base64
org.apache.commons.codec.binary.Base64InputStream
org.apache.commons.codec.binary.Base64OutputStream
org.apache.commons.codec.binary.BaseNCodec$Context
org.apache.commons.codec.binary.BaseNCodecInputStream
org.apache.commons.codec.binary.BaseNCodecOutputStream
org.apache.commons.codec.binary.BinaryCodec
org.apache.commons.codec.binary.Hex
org.apache.commons.codec.binary.StringUtils
org.apache.commons.codec.digest
org.apache.commons.codec.net
java.io
java.lang
java.math
java.nio.charset
java.util
org.apache.commons.codec

org.apache.commons.codec.digest

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 7 0.0% 100.0% 0.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
None org.apache.commons.codec.digest.B64
org.apache.commons.codec.digest.Crypt
org.apache.commons.codec.digest.DigestUtils
org.apache.commons.codec.digest.Md5Crypt
org.apache.commons.codec.digest.MessageDigestAlgorithms
org.apache.commons.codec.digest.Sha2Crypt
org.apache.commons.codec.digest.UnixCrypt
None java.io
java.lang
java.security
java.util
java.util.regex
org.apache.commons.codec
org.apache.commons.codec.binary

org.apache.commons.codec.language

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 4 12.0% 100.0% 12.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.codec.language.AbstractCaverphone
org.apache.commons.codec.language.ColognePhonetic$CologneBuffer
org.apache.commons.codec.language.Caverphone
org.apache.commons.codec.language.Caverphone1
org.apache.commons.codec.language.Caverphone2
org.apache.commons.codec.language.ColognePhonetic
org.apache.commons.codec.language.ColognePhonetic$CologneInputBuffer
org.apache.commons.codec.language.ColognePhonetic$CologneOutputBuffer
org.apache.commons.codec.language.DoubleMetaphone
org.apache.commons.codec.language.DoubleMetaphone$DoubleMetaphoneResult
org.apache.commons.codec.language.MatchRatingApproachEncoder
org.apache.commons.codec.language.Metaphone
org.apache.commons.codec.language.Nysiis
org.apache.commons.codec.language.RefinedSoundex
org.apache.commons.codec.language.Soundex
org.apache.commons.codec.language.SoundexUtils
None java.lang
java.util
java.util.regex
org.apache.commons.codec

org.apache.commons.codec.language.bm

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 5 10.0% 100.0% 10.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.codec.language.bm.Languages$LanguageSet
org.apache.commons.codec.language.bm.Rule$PhonemeExpr
org.apache.commons.codec.language.bm.Rule$RPattern
org.apache.commons.codec.language.bm.BeiderMorseEncoder
org.apache.commons.codec.language.bm.Lang
org.apache.commons.codec.language.bm.Lang$LangRule
org.apache.commons.codec.language.bm.Languages
org.apache.commons.codec.language.bm.Languages$1
org.apache.commons.codec.language.bm.Languages$2
org.apache.commons.codec.language.bm.Languages$SomeLanguages
org.apache.commons.codec.language.bm.NameType
org.apache.commons.codec.language.bm.PhoneticEngine
org.apache.commons.codec.language.bm.PhoneticEngine$PhonemeBuilder
org.apache.commons.codec.language.bm.PhoneticEngine$RulesApplication
org.apache.commons.codec.language.bm.ResourceConstants
org.apache.commons.codec.language.bm.Rule
org.apache.commons.codec.language.bm.Rule$1
org.apache.commons.codec.language.bm.Rule$10
org.apache.commons.codec.language.bm.Rule$2
org.apache.commons.codec.language.bm.Rule$3
org.apache.commons.codec.language.bm.Rule$4
org.apache.commons.codec.language.bm.Rule$5
org.apache.commons.codec.language.bm.Rule$6
org.apache.commons.codec.language.bm.Rule$7
org.apache.commons.codec.language.bm.Rule$8
org.apache.commons.codec.language.bm.Rule$9
org.apache.commons.codec.language.bm.Rule$Phoneme
org.apache.commons.codec.language.bm.Rule$Phoneme$1
org.apache.commons.codec.language.bm.Rule$PhonemeList
org.apache.commons.codec.language.bm.RuleType
None java.io
java.lang
java.util
java.util.regex
org.apache.commons.codec

org.apache.commons.codec.net

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 6 17.0% 100.0% 17.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.commons.codec.net.RFC1522Codec
org.apache.commons.codec.net.BCodec
org.apache.commons.codec.net.QCodec
org.apache.commons.codec.net.QuotedPrintableCodec
org.apache.commons.codec.net.URLCodec
org.apache.commons.codec.net.Utils
None java.io
java.lang
java.nio.charset
java.util
org.apache.commons.codec
org.apache.commons.codec.binary

Cycles

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

There are no cyclic dependencies.

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.