cmd-dao - JDepend Source Code Analysis

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	Total Classes	Abstract Classes	Concrete Classes	Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
org.j2ee.dao	18	8	10	1	11	0.44	92%	36%
org.j2ee.dao.errors	6	2	4	1	4	0.33	80%	13%
org.j2ee.dao.gen	8	0	8	0	9	0	100%	0%
org.j2ee.dao.util	6	2	4	1	6	0.33	86%	19%

Packages

[ summary ] [ packages ] [ cycles ] [ explanations ]

org.j2ee.dao

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	11	44%	92%	36%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
AbstractHibernateDAOAction AbstractJdbcDAOAction DAOAction DAOActionProcessor DAOErrorHandler DAOFactory HibernateDAOAction JdbcDAOAction	DAOCheckConstraintFailedException DAOException DAOHibernateActionProcessorImpl DAOJdbcActionProcessorImpl DAONoDataFoundException DAOParentKeyNotFoundException DAORestrictUpdateFailedException DAOUniqueConstraintFailedException DefaultDAOFactoryImpl MacroDAOAction	org.j2ee.dao.util	java.io java.lang java.sql java.util javax.naming net.sf.hibernate net.sf.hibernate.cfg net.sf.hibernate.exception org.apache.log4j org.j2ee.dao.errors org.j2ee.dao.util

org.j2ee.dao.errors

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	4	33%	80%	13%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
AbstractErrorMapper ErrorMapper	DB2ErrorMapper ErrorMapperFactory HSQLErrorMapper OracleErrorMapper	org.j2ee.dao	java.lang java.sql net.sf.hibernate org.apache.log4j

org.j2ee.dao.gen

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
0	9	0%	100%	0%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
	DAOGenerator DAOGeneratorTask FieldData GenData GenTypes Main TableData Util		java.io java.lang java.net java.sql java.util javax.xml.transform javax.xml.transform.stream org.apache.tools.ant org.apache.tools.ant.types

org.j2ee.dao.util

Afferent Couplings	Efferent Couplings	Abstractness	Instability	Distance
1	6	33%	86%	19%

Abstract Classes	Concrete Classes	Used by Packages	Uses Packages
AbstractPageByPageAction ResultSetRowMapper	GenericErrorHandler HibernateDB2NTopWrapperAction HibernateOracleNTopWrapperAction JdbcOracleNTopQueryWrapperAction	org.j2ee.dao	java.io java.lang java.sql java.util org.apache.log4j org.j2ee.dao

Cycles

[ summary ] [ packages ] [ cycles ] [ explanations ]

Package	Cyclic Dependencies
org.j2ee.dao	org.j2ee.dao.util org.j2ee.dao
org.j2ee.dao.util	org.j2ee.dao org.j2ee.dao.util

Explanations

[ 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.