| Package | TC | CC | AC | Ca | Ce | A | I | D | V |
|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.cli2 | 9 | 2 | 7 | 4 | 3 | 78.0% | 43.0% | 21.0% | 1 |
| org.apache.commons.cli2.builder | 6 | 6 | 0 | 0 | 6 | 0.0% | 100.0% | 0.0% | 1 |
| org.apache.commons.cli2.commandline | 6 | 5 | 1 | 0 | 7 | 17.0% | 100.0% | 17.0% | 1 |
| org.apache.commons.cli2.option | 11 | 9 | 2 | 3 | 5 | 18.0% | 62.0% | 19.0% | 1 |
| org.apache.commons.cli2.resource | 2 | 1 | 1 | 6 | 3 | 50.0% | 33.0% | 17.0% | 1 |
| org.apache.commons.cli2.util | 12 | 12 | 0 | 1 | 6 | 0.0% | 86.0% | 14.0% | 1 |
| org.apache.commons.cli2.validation | 8 | 7 | 1 | 2 | 6 | 12.0% | 75.0% | 12.0% | 1 |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 4 | 3 | 78.0% | 43.0% | 21.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.cli2.Argument org.apache.commons.cli2.CommandLine org.apache.commons.cli2.Group org.apache.commons.cli2.HelpLine org.apache.commons.cli2.Option org.apache.commons.cli2.Parent org.apache.commons.cli2.WriteableCommandLine | org.apache.commons.cli2.DisplaySetting org.apache.commons.cli2.OptionException | org.apache.commons.cli2.builder org.apache.commons.cli2.commandline org.apache.commons.cli2.option org.apache.commons.cli2.util | java.lang java.util org.apache.commons.cli2.resource |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 6 | 0.0% | 100.0% | 0.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.cli2.builder.ArgumentBuilder org.apache.commons.cli2.builder.CommandBuilder org.apache.commons.cli2.builder.DefaultOptionBuilder org.apache.commons.cli2.builder.GroupBuilder org.apache.commons.cli2.builder.PatternBuilder org.apache.commons.cli2.builder.SwitchBuilder | None | java.lang java.util org.apache.commons.cli2 org.apache.commons.cli2.option org.apache.commons.cli2.resource org.apache.commons.cli2.validation |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 7 | 17.0% | 100.0% | 17.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.cli2.commandline.CommandLineImpl | org.apache.commons.cli2.commandline.DefaultingCommandLine org.apache.commons.cli2.commandline.Parser org.apache.commons.cli2.commandline.PreferencesCommandLine org.apache.commons.cli2.commandline.PropertiesCommandLine org.apache.commons.cli2.commandline.WriteableCommandLineImpl | None | java.lang java.util java.util.prefs org.apache.commons.cli2 org.apache.commons.cli2.option org.apache.commons.cli2.resource org.apache.commons.cli2.util |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 5 | 18.0% | 62.0% | 19.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.cli2.option.OptionImpl org.apache.commons.cli2.option.ParentImpl | org.apache.commons.cli2.option.ArgumentImpl org.apache.commons.cli2.option.Command org.apache.commons.cli2.option.DefaultOption org.apache.commons.cli2.option.GroupImpl org.apache.commons.cli2.option.HelpLineImpl org.apache.commons.cli2.option.PropertyOption org.apache.commons.cli2.option.ReverseStringComparator org.apache.commons.cli2.option.SourceDestArgument org.apache.commons.cli2.option.Switch | org.apache.commons.cli2.builder org.apache.commons.cli2.commandline org.apache.commons.cli2.util | java.lang java.util org.apache.commons.cli2 org.apache.commons.cli2.resource org.apache.commons.cli2.validation |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 6 | 3 | 50.0% | 33.0% | 17.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.cli2.resource.ResourceConstants | org.apache.commons.cli2.resource.ResourceHelper | org.apache.commons.cli2 org.apache.commons.cli2.builder org.apache.commons.cli2.commandline org.apache.commons.cli2.option org.apache.commons.cli2.util org.apache.commons.cli2.validation | java.lang java.text java.util |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 6 | 0.0% | 86.0% | 14.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.cli2.util.Comparators org.apache.commons.cli2.util.Comparators$1 org.apache.commons.cli2.util.Comparators$Chain org.apache.commons.cli2.util.Comparators$CommandFirst org.apache.commons.cli2.util.Comparators$DefaultOptionFirst org.apache.commons.cli2.util.Comparators$GroupFirst org.apache.commons.cli2.util.Comparators$Named org.apache.commons.cli2.util.Comparators$PreferredName org.apache.commons.cli2.util.Comparators$Required org.apache.commons.cli2.util.Comparators$Reverse org.apache.commons.cli2.util.Comparators$SwitchFirst org.apache.commons.cli2.util.HelpFormatter | org.apache.commons.cli2.commandline | java.io java.lang java.util org.apache.commons.cli2 org.apache.commons.cli2.option org.apache.commons.cli2.resource |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 2 | 6 | 12.0% | 75.0% | 12.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.cli2.validation.Validator | org.apache.commons.cli2.validation.ClassValidator org.apache.commons.cli2.validation.DateValidator org.apache.commons.cli2.validation.EnumValidator org.apache.commons.cli2.validation.FileValidator org.apache.commons.cli2.validation.InvalidArgumentException org.apache.commons.cli2.validation.NumberValidator org.apache.commons.cli2.validation.UrlValidator | org.apache.commons.cli2.builder org.apache.commons.cli2.option | java.io java.lang java.net java.text java.util org.apache.commons.cli2.resource |
| 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. |