| Package | TC | CC | AC | Ca | Ce | A | I | D | V |
|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.discovery | 10 | 4 | 6 | 6 | 6 | 60.000004% | 50.0% | 10.0% | 1 |
| org.apache.commons.discovery.ant | 1 | 1 | 0 | 0 | 6 | 0.0% | 100.0% | 0.0% | 1 |
| org.apache.commons.discovery.jdk | 7 | 6 | 1 | 3 | 6 | 14.0% | 67.0% | 19.0% | 1 |
| org.apache.commons.discovery.log | 2 | 2 | 0 | 0 | 8 | 0.0% | 100.0% | 0.0% | 1 |
| org.apache.commons.discovery.resource | 5 | 4 | 1 | 4 | 8 | 20.0% | 67.0% | 13.0% | 1 |
| org.apache.commons.discovery.resource.classes | 4 | 3 | 1 | 1 | 7 | 25.0% | 88.0% | 12.0% | 1 |
| org.apache.commons.discovery.resource.names | 17 | 16 | 1 | 2 | 7 | 6.0% | 78.0% | 16.0% | 1 |
| org.apache.commons.discovery.tools | 13 | 13 | 0 | 2 | 11 | 0.0% | 85.0% | 15.000001% | 1 |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 6 | 6 | 60.000004% | 50.0% | 10.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.discovery.ResourceClassDiscover org.apache.commons.discovery.ResourceClassIterator org.apache.commons.discovery.ResourceDiscover org.apache.commons.discovery.ResourceIterator org.apache.commons.discovery.ResourceNameDiscover org.apache.commons.discovery.ResourceNameIterator | org.apache.commons.discovery.DiscoveryException org.apache.commons.discovery.Resource org.apache.commons.discovery.ResourceClass org.apache.commons.discovery.ResourceClass$1 | org.apache.commons.discovery.ant org.apache.commons.discovery.log org.apache.commons.discovery.resource org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools | java.io java.lang java.net java.security java.util org.apache.commons.logging |
| 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.discovery.ant.ServiceDiscoveryTask | None | java.io java.lang java.util org.apache.commons.discovery org.apache.commons.discovery.jdk org.apache.commons.discovery.resource |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 6 | 14.0% | 67.0% | 19.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.discovery.jdk.JDKHooks | org.apache.commons.discovery.jdk.JDK11Hooks org.apache.commons.discovery.jdk.JDK11Hooks$1 org.apache.commons.discovery.jdk.JDK12Hooks org.apache.commons.discovery.jdk.JDK12Hooks$1 org.apache.commons.discovery.jdk.JDK12Hooks$2 org.apache.commons.discovery.jdk.PsuedoSystemClassLoader | org.apache.commons.discovery.ant org.apache.commons.discovery.resource org.apache.commons.discovery.tools | java.io java.lang java.net java.security java.util org.apache.commons.logging |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 8 | 0.0% | 100.0% | 0.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.discovery.log.DiscoveryLogFactory org.apache.commons.discovery.log.SimpleLog | None | java.io java.lang java.lang.reflect java.text java.util org.apache.commons.discovery org.apache.commons.discovery.tools org.apache.commons.logging |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 4 | 8 | 20.0% | 67.0% | 13.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.discovery.resource.ResourceDiscoverImpl | org.apache.commons.discovery.resource.ClassLoaders org.apache.commons.discovery.resource.DiscoverResources org.apache.commons.discovery.resource.DiscoverResources$1 org.apache.commons.discovery.resource.ResourceDiscoverImpl$1 | org.apache.commons.discovery.ant org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools | java.io java.lang java.net java.util org.apache.commons.discovery org.apache.commons.discovery.jdk org.apache.commons.discovery.resource.names org.apache.commons.logging |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 7 | 25.0% | 88.0% | 12.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl | org.apache.commons.discovery.resource.classes.DiscoverClasses org.apache.commons.discovery.resource.classes.DiscoverClasses$1 org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl$1 | org.apache.commons.discovery.tools | java.lang java.net java.security java.util org.apache.commons.discovery org.apache.commons.discovery.resource org.apache.commons.logging |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 2 | 7 | 6.0% | 78.0% | 16.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.discovery.resource.names.ResourceNameDiscoverImpl | org.apache.commons.discovery.resource.names.DiscoverMappedNames org.apache.commons.discovery.resource.names.DiscoverMappedNames$1 org.apache.commons.discovery.resource.names.DiscoverNamesInAlternateManagedProperties org.apache.commons.discovery.resource.names.DiscoverNamesInAlternateManagedProperties$1 org.apache.commons.discovery.resource.names.DiscoverNamesInDictionary org.apache.commons.discovery.resource.names.DiscoverNamesInDictionary$1 org.apache.commons.discovery.resource.names.DiscoverNamesInFile org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1 org.apache.commons.discovery.resource.names.DiscoverNamesInManagedProperties org.apache.commons.discovery.resource.names.DiscoverNamesInManagedProperties$1 org.apache.commons.discovery.resource.names.DiscoverNamesInSystemProperties org.apache.commons.discovery.resource.names.DiscoverNamesInSystemProperties$1 org.apache.commons.discovery.resource.names.DiscoverServiceNames org.apache.commons.discovery.resource.names.NameDiscoverers org.apache.commons.discovery.resource.names.NameDiscoverers$1 org.apache.commons.discovery.resource.names.ResourceNameDiscoverImpl$1 | org.apache.commons.discovery.resource org.apache.commons.discovery.tools | java.io java.lang java.util org.apache.commons.discovery org.apache.commons.discovery.resource org.apache.commons.discovery.tools org.apache.commons.logging |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 2 | 11 | 0.0% | 85.0% | 15.000001% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| None | org.apache.commons.discovery.tools.ClassUtils org.apache.commons.discovery.tools.DefaultClassHolder org.apache.commons.discovery.tools.DiscoverClass org.apache.commons.discovery.tools.DiscoverSingleton org.apache.commons.discovery.tools.EnvironmentCache org.apache.commons.discovery.tools.ManagedProperties org.apache.commons.discovery.tools.ManagedProperties$1 org.apache.commons.discovery.tools.ManagedProperties$Value org.apache.commons.discovery.tools.PropertiesHolder org.apache.commons.discovery.tools.ResourceUtils org.apache.commons.discovery.tools.SPInterface org.apache.commons.discovery.tools.Service org.apache.commons.discovery.tools.Service$1 | org.apache.commons.discovery.log org.apache.commons.discovery.resource.names | java.io java.lang java.lang.reflect java.security java.util org.apache.commons.discovery org.apache.commons.discovery.jdk org.apache.commons.discovery.resource org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource.names org.apache.commons.logging |
| Package | Package Dependencies |
|---|---|
| org.apache.commons.discovery.ant | org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource |
| org.apache.commons.discovery.log | org.apache.commons.discovery.tools org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools |
| org.apache.commons.discovery.resource | org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource |
| org.apache.commons.discovery.resource.classes | org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools org.apache.commons.discovery.resource.classes |
| org.apache.commons.discovery.resource.names | org.apache.commons.discovery.tools org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names |
| org.apache.commons.discovery.tools | org.apache.commons.discovery.resource.classes org.apache.commons.discovery.resource org.apache.commons.discovery.resource.names org.apache.commons.discovery.tools |
| 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. |