| Package | TC | CC | AC | Ca | Ce | A | I | D | V |
|---|---|---|---|---|---|---|---|---|---|
| org.apache.commons.classscan | 8 | 0 | 8 | 5 | 5 | 100.0% | 50.0% | 50.0% | 1 |
| org.apache.commons.classscan.builtin | 25 | 24 | 1 | 1 | 12 | 4.0% | 92.0% | 4.0% | 1 |
| org.apache.commons.classscan.model | 9 | 0 | 9 | 3 | 3 | 100.0% | 50.0% | 50.0% | 1 |
| org.apache.commons.classscan.spi | 3 | 0 | 3 | 1 | 5 | 100.0% | 83.0% | 83.0% | 1 |
| org.apache.commons.classscan.spi.model | 14 | 0 | 14 | 3 | 6 | 100.0% | 67.0% | 67.0% | 1 |
| org.apache.commons.classscan.util | 18 | 14 | 4 | 1 | 9 | 22.0% | 90.0% | 12.0% | 1 |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 5 | 5 | 100.0% | 50.0% | 50.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.classscan.ClassFile org.apache.commons.classscan.ClassPath org.apache.commons.classscan.ClassPathElement org.apache.commons.classscan.HasName org.apache.commons.classscan.MetaClassLoader org.apache.commons.classscan.MetaClassPathElement org.apache.commons.classscan.MetaRegistry org.apache.commons.classscan.ResourceFile | None | org.apache.commons.classscan.builtin org.apache.commons.classscan.model org.apache.commons.classscan.spi org.apache.commons.classscan.spi.model org.apache.commons.classscan.util | java.io java.lang java.util org.apache.commons.classscan.builtin org.apache.commons.classscan.model |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 12 | 4.0% | 92.0% | 4.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.classscan.builtin.ClassFileIterator | org.apache.commons.classscan.builtin.BootstrapClassPath org.apache.commons.classscan.builtin.BootstrapMetaClassLoader org.apache.commons.classscan.builtin.BootstrapMetaClassLoader$1 org.apache.commons.classscan.builtin.ClassNameHelper org.apache.commons.classscan.builtin.DefaultArrayType org.apache.commons.classscan.builtin.DefaultClassPathElementFactory org.apache.commons.classscan.builtin.DefaultClassPathFactory org.apache.commons.classscan.builtin.DefaultMetaClassPathElement org.apache.commons.classscan.builtin.DefaultMetaRegistry org.apache.commons.classscan.builtin.DefaultMetaRegistry$1 org.apache.commons.classscan.builtin.FileClassFile org.apache.commons.classscan.builtin.FileClassPathElement org.apache.commons.classscan.builtin.FileClassPathElement$1 org.apache.commons.classscan.builtin.FileClassPathElement$FileCursor org.apache.commons.classscan.builtin.FileResourceFile org.apache.commons.classscan.builtin.JarClassFile org.apache.commons.classscan.builtin.JarClassPathElement org.apache.commons.classscan.builtin.JarClassPathElement$1 org.apache.commons.classscan.builtin.JarResourceFile org.apache.commons.classscan.builtin.JarResourceFile$1 org.apache.commons.classscan.builtin.PrimitiveClass org.apache.commons.classscan.builtin.UrlClassPath org.apache.commons.classscan.builtin.UrlMetaClassLoader org.apache.commons.classscan.builtin.UrlMetaClassLoader$1 | org.apache.commons.classscan | java.io java.lang java.net java.util java.util.jar java.util.regex org.apache.commons.classscan org.apache.commons.classscan.model org.apache.commons.classscan.spi org.apache.commons.classscan.spi.model org.apache.commons.classscan.util org.slf4j |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 3 | 100.0% | 50.0% | 50.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.classscan.model.MetaAnnotation org.apache.commons.classscan.model.MetaAnnotation$EnumValue org.apache.commons.classscan.model.MetaAnnotation$Property org.apache.commons.classscan.model.MetaArray org.apache.commons.classscan.model.MetaClass org.apache.commons.classscan.model.MetaField org.apache.commons.classscan.model.MetaMethod org.apache.commons.classscan.model.MetaParameter org.apache.commons.classscan.model.MetaType | None | org.apache.commons.classscan org.apache.commons.classscan.builtin org.apache.commons.classscan.spi.model | java.lang java.util org.apache.commons.classscan |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 5 | 100.0% | 83.0% | 83.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.classscan.spi.ClassDigesterFactory org.apache.commons.classscan.spi.ClassPathElementFactory org.apache.commons.classscan.spi.ClassPathFactory | None | org.apache.commons.classscan.builtin | java.io java.lang java.net org.apache.commons.classscan org.apache.commons.classscan.spi.model |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 3 | 6 | 100.0% | 67.0% | 67.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.classscan.spi.model.HasResolve org.apache.commons.classscan.spi.model.SpiClassDigester org.apache.commons.classscan.spi.model.SpiClassPath org.apache.commons.classscan.spi.model.SpiClassPathElement org.apache.commons.classscan.spi.model.SpiMetaAnnotation org.apache.commons.classscan.spi.model.SpiMetaAnnotation$SpiProperty org.apache.commons.classscan.spi.model.SpiMetaArray org.apache.commons.classscan.spi.model.SpiMetaClass org.apache.commons.classscan.spi.model.SpiMetaClassLoader org.apache.commons.classscan.spi.model.SpiMetaClassPathElement org.apache.commons.classscan.spi.model.SpiMetaField org.apache.commons.classscan.spi.model.SpiMetaMethod org.apache.commons.classscan.spi.model.SpiMetaParameter org.apache.commons.classscan.spi.model.SpiMetaRegistry | None | org.apache.commons.classscan.builtin org.apache.commons.classscan.spi org.apache.commons.classscan.util | java.io java.lang java.net java.util org.apache.commons.classscan org.apache.commons.classscan.model |
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 1 | 9 | 22.0% | 90.0% | 12.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| org.apache.commons.classscan.util.CallStack org.apache.commons.classscan.util.CallStack$GetCallerStrategy org.apache.commons.classscan.util.NameSet$NameResolve org.apache.commons.classscan.util.ServiceVisitor | org.apache.commons.classscan.util.CallStack$SecurityManagerMethod org.apache.commons.classscan.util.CallStack$SunReflection org.apache.commons.classscan.util.FactoryCache org.apache.commons.classscan.util.FactoryCache$1 org.apache.commons.classscan.util.NameSet org.apache.commons.classscan.util.NameSet$1 org.apache.commons.classscan.util.NameSet$2 org.apache.commons.classscan.util.ReadOnlySet org.apache.commons.classscan.util.ReadOnlySet$1 org.apache.commons.classscan.util.ReapingHashMap org.apache.commons.classscan.util.ReapingHashMap$HashWeakReference org.apache.commons.classscan.util.ReapingHashMap$KeyReference org.apache.commons.classscan.util.ReapingHashMap$ReaperThread org.apache.commons.classscan.util.ResolveSet | org.apache.commons.classscan.builtin | java.lang java.lang.ref java.lang.reflect java.util java.util.concurrent org.apache.commons.classscan org.apache.commons.classscan.spi.model org.slf4j sun.reflect |
| Package | Package Dependencies |
|---|---|
| org.apache.commons.classscan | org.apache.commons.classscan.model org.apache.commons.classscan |
| org.apache.commons.classscan.builtin | org.apache.commons.classscan.spi.model org.apache.commons.classscan org.apache.commons.classscan.model org.apache.commons.classscan |
| org.apache.commons.classscan.model | org.apache.commons.classscan org.apache.commons.classscan.model |
| org.apache.commons.classscan.spi | org.apache.commons.classscan org.apache.commons.classscan.model org.apache.commons.classscan |
| org.apache.commons.classscan.spi.model | org.apache.commons.classscan org.apache.commons.classscan.model org.apache.commons.classscan |
| org.apache.commons.classscan.util | org.apache.commons.classscan org.apache.commons.classscan.model org.apache.commons.classscan |
| 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. |