| Package | TC | CC | AC | Ca | Ce | A | I | D | V |
|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.contract | 10 | 5 | 5 | 4 | 6 | 50.0% | 60.000004% | 10.0% | 1 |
| org.apache.commons.contract.constraints | 16 | 12 | 4 | 4 | 8 | 25.0% | 67.0% | 8.0% | 1 |
| org.apache.commons.contract.context | 1 | 1 | 0 | 1 | 4 | 0.0% | 80.0% | 20.0% | 1 |
| org.apache.commons.contract.descriptor | 7 | 7 | 0 | 3 | 4 | 0.0% | 57.0% | 43.0% | 1 |
| org.apache.commons.contract.i18n | 1 | 1 | 0 | 3 | 3 | 0.0% | 50.0% | 50.0% | 1 |
| org.apache.commons.contract.store | 1 | 1 | 0 | 1 | 4 | 0.0% | 80.0% | 20.0% | 1 |
| org.apache.commons.contract.util | 2 | 2 | 0 | 0 | 10 | 0.0% | 100.0% | 0.0% | 1 |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 4 | 6 | 50.0% | 60.000004% | 10.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.contract.Context org.apache.commons.contract.EnvironmentConsumer org.apache.commons.contract.EnvironmentProvider org.apache.commons.contract.Processor org.apache.commons.contract.Store |
org.apache.commons.contract.ContractViolationException org.apache.commons.contract.Executor org.apache.commons.contract.Information org.apache.commons.contract.Result org.apache.commons.contract.StoreException |
org.apache.commons.contract.constraints org.apache.commons.contract.context org.apache.commons.contract.store org.apache.commons.contract.util |
java.lang java.util org.apache.commons.contract.constraints org.apache.commons.contract.descriptor org.apache.commons.i18n org.apache.commons.i18n.bundles |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 4 | 8 | 25.0% | 67.0% | 8.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.contract.constraints.Castable org.apache.commons.contract.constraints.Constraints org.apache.commons.contract.constraints.Evaluatable org.apache.commons.contract.constraints.Validatable |
org.apache.commons.contract.constraints.ArrayConstraints org.apache.commons.contract.constraints.BooleanConstraints org.apache.commons.contract.constraints.CastException org.apache.commons.contract.constraints.DateConstraints org.apache.commons.contract.constraints.ListConstraints org.apache.commons.contract.constraints.LocaleConstraints org.apache.commons.contract.constraints.MapConstraints org.apache.commons.contract.constraints.NumberConstraints org.apache.commons.contract.constraints.StringConstraints org.apache.commons.contract.constraints.TreeConstraints org.apache.commons.contract.constraints.Unconstrained org.apache.commons.contract.constraints.ValidationException |
org.apache.commons.contract org.apache.commons.contract.descriptor org.apache.commons.contract.store org.apache.commons.contract.util |
java.lang java.math java.text java.util org.apache.commons.contract org.apache.commons.contract.descriptor org.apache.commons.contract.i18n org.apache.commons.i18n.bundles |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 4 | 0.0% | 80.0% | 20.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.contract.context.VMContext |
org.apache.commons.contract.util |
java.lang java.util org.apache.commons.contract org.apache.commons.contract.store |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 4 | 0.0% | 57.0% | 43.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.contract.descriptor.Descriptor org.apache.commons.contract.descriptor.ParameterDescriptor org.apache.commons.contract.descriptor.ProvidedEnvironmentDescriptor org.apache.commons.contract.descriptor.RequiredEnvironmentDescriptor org.apache.commons.contract.descriptor.ResultDescriptor org.apache.commons.contract.descriptor.ResultEntryDescriptor org.apache.commons.contract.descriptor.StateDescriptor |
org.apache.commons.contract org.apache.commons.contract.constraints org.apache.commons.contract.util |
java.lang org.apache.commons.contract.constraints org.apache.commons.contract.i18n org.apache.commons.i18n.bundles |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 3 | 0.0% | 50.0% | 50.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.contract.i18n.ParameterBundle |
org.apache.commons.contract.constraints org.apache.commons.contract.descriptor org.apache.commons.contract.util |
java.lang java.util org.apache.commons.i18n.bundles |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 4 | 0.0% | 80.0% | 20.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.contract.store.Environment |
org.apache.commons.contract.context |
java.lang org.apache.commons.contract org.apache.commons.contract.constraints org.apache.commons.i18n.bundles |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 10 | 0.0% | 100.0% | 0.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.contract.util.InteractiveMainWrapper org.apache.commons.contract.util.MainWrapper |
None | java.io java.lang java.util org.apache.commons.contract org.apache.commons.contract.constraints org.apache.commons.contract.context org.apache.commons.contract.descriptor org.apache.commons.contract.i18n org.apache.commons.i18n org.apache.commons.i18n.bundles |
| Package | Package Dependencies |
|---|---|
| org.apache.commons.contract | org.apache.commons.contract.descriptor org.apache.commons.contract.constraints org.apache.commons.contract |
| org.apache.commons.contract.constraints | org.apache.commons.contract org.apache.commons.contract.descriptor org.apache.commons.contract.constraints |
| org.apache.commons.contract.context | org.apache.commons.contract.store org.apache.commons.contract.constraints org.apache.commons.contract org.apache.commons.contract.descriptor org.apache.commons.contract.constraints |
| org.apache.commons.contract.descriptor | org.apache.commons.contract.constraints org.apache.commons.contract org.apache.commons.contract.descriptor |
| org.apache.commons.contract.store | org.apache.commons.contract.constraints org.apache.commons.contract org.apache.commons.contract.descriptor org.apache.commons.contract.constraints |
| org.apache.commons.contract.util | org.apache.commons.contract.context org.apache.commons.contract.store org.apache.commons.contract.constraints org.apache.commons.contract org.apache.commons.contract.descriptor org.apache.commons.contract.constraints |
| 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. |