Apache MyFaces
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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.myfaces.commons.validator 26 18 8 0 18 31.0% 100.0% 31.0% 1
org.apache.myfaces.commons.validator.model 1 0 1 1 3 100.0% 75.0% 75.0% 1

Packages

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

org.apache.myfaces.commons.validator

Afferent Couplings Efferent Couplings Abstractness Instability Distance
0 18 31.0% 100.0% 31.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.myfaces.commons.validator.AbstractCSVValidator
org.apache.myfaces.commons.validator.AbstractCompareToValidator
org.apache.myfaces.commons.validator.AbstractCreditCardValidator
org.apache.myfaces.commons.validator.AbstractDateRestrictionValidator
org.apache.myfaces.commons.validator.AbstractRegExprValidator
org.apache.myfaces.commons.validator.AbstractUrlValidator
org.apache.myfaces.commons.validator.ValidatorBase
org.apache.myfaces.commons.validator.ValidatorBaseTag
org.apache.myfaces.commons.validator.CSVValidator
org.apache.myfaces.commons.validator.CompareToValidator
org.apache.myfaces.commons.validator.CreditCardValidator
org.apache.myfaces.commons.validator.DateRestrictionValidator
org.apache.myfaces.commons.validator.EmailValidator
org.apache.myfaces.commons.validator.ISBNValidator
org.apache.myfaces.commons.validator.RegExprValidator
org.apache.myfaces.commons.validator.UrlValidator
org.apache.myfaces.commons.validator.ValidateCSVTag
org.apache.myfaces.commons.validator.ValidateCompareToTag
org.apache.myfaces.commons.validator.ValidateCreditCardTag
org.apache.myfaces.commons.validator.ValidateDateRestrictionTag
org.apache.myfaces.commons.validator.ValidateEmailTag
org.apache.myfaces.commons.validator.ValidateISBNTag
org.apache.myfaces.commons.validator.ValidateRegExprTag
org.apache.myfaces.commons.validator.ValidateUrlTag
org.apache.myfaces.commons.validator._AttachedListStateWrapper
org.apache.myfaces.commons.validator._AttachedStateWrapper
None java.io
java.lang
java.text
java.util
java.util.regex
javax.el
javax.faces
javax.faces.application
javax.faces.component
javax.faces.context
javax.faces.convert
javax.faces.render
javax.faces.validator
javax.faces.webapp
javax.servlet.jsp
org.apache.commons.validator
org.apache.myfaces.commons.util
org.apache.myfaces.commons.validator.model

org.apache.myfaces.commons.validator.model

Afferent Couplings Efferent Couplings Abstractness Instability Distance
1 3 100.0% 75.0% 75.0%
Abstract Classes Concrete Classes Used by Packages Uses Packages
org.apache.myfaces.commons.validator.model.DateListProvider
None org.apache.myfaces.commons.validator
java.lang
java.util
javax.faces.context

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.