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 |
|---|---|---|---|---|---|---|---|---|---|
| net.java.truevfs.access | 36 | 31 | 5 | 0 | 22 | 14.0% | 100.0% | 14.0% | 1 |
Packages
[ summary ] [ packages ] [ cycles ] [ explanations ]net.java.truevfs.access
| Afferent Couplings | Efferent Couplings | Abstractness | Instability | Distance |
|---|---|---|---|---|
| 0 | 22 | 14.0% | 100.0% | 14.0% |
| Abstract Classes | Concrete Classes | Used by Packages | Uses Packages |
|---|---|---|---|
| net.java.truevfs.access.ExpertFeature net.java.truevfs.access.TApplication net.java.truevfs.access.TFileSystemProvider$Parameter net.java.truevfs.access.TRex net.java.truevfs.access.package-info |
net.java.truevfs.access.ExpertFeature$Level net.java.truevfs.access.ExpertFeature$Reason net.java.truevfs.access.TArchiveDetector net.java.truevfs.access.TBIO net.java.truevfs.access.TConfig net.java.truevfs.access.TFile net.java.truevfs.access.TFileBeanInfo net.java.truevfs.access.TFileBeanInfo$1 net.java.truevfs.access.TFileComparator net.java.truevfs.access.TFileInputStream net.java.truevfs.access.TFileOutputStream net.java.truevfs.access.TFileReader net.java.truevfs.access.TFileSystem net.java.truevfs.access.TFileSystem$1 net.java.truevfs.access.TFileSystem$1Adapter net.java.truevfs.access.TFileSystem$1FilterIterator net.java.truevfs.access.TFileSystem$FsNodeAttributeView net.java.truevfs.access.TFileSystem$FsNodeAttributes net.java.truevfs.access.TFileSystem$Stream net.java.truevfs.access.TFileSystemProvider net.java.truevfs.access.TFileSystemProvider$1 net.java.truevfs.access.TFileSystemProvider$Lazy net.java.truevfs.access.TFileWriter net.java.truevfs.access.TPath net.java.truevfs.access.TPath$1 net.java.truevfs.access.TPath$SegmentIterator net.java.truevfs.access.TPath$TPathComparator net.java.truevfs.access.TPath$WindowsTPathComparator net.java.truevfs.access.TUriHelper net.java.truevfs.access.TUriResolver net.java.truevfs.access.TVFS |
None | java.awt java.beans java.io java.lang java.lang.annotation java.lang.ref java.net java.nio.channels java.nio.charset java.nio.file java.nio.file.attribute java.nio.file.spi java.text java.util javax.inject net.java.truecommons.cio net.java.truecommons.io net.java.truecommons.services net.java.truecommons.shed net.java.truevfs.kernel.spec net.java.truevfs.kernel.spec.sl org.slf4j |
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. |