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

Packages

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

org.apache.shardingsphere.infra.exception

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 4 0.0% 100.0% 0.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages None org.apache.shardingsphere.infra.exception.ShardingSpherePreconditions
None com.google.common.base
java.lang
java.util
java.util.function

org.apache.shardingsphere.infra.exception.external

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 1 1 100.0% 50.0% 50.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.ShardingSphereExternalException
None org.apache.shardingsphere.infra.exception.external.server
java.lang

org.apache.shardingsphere.infra.exception.external.server

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 2 100.0% 100.0% 100.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.server.ShardingSphereServerException
None None java.lang
org.apache.shardingsphere.infra.exception.external

org.apache.shardingsphere.infra.exception.external.sql.identifier

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 1 0.0% 100.0% 0.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages None org.apache.shardingsphere.infra.exception.external.sql.identifier.SQLExceptionIdentifier
None java.lang

org.apache.shardingsphere.infra.exception.external.sql.sqlstate

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 6 1 50.0% 14.0% 36.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.sql.sqlstate.SQLState
org.apache.shardingsphere.infra.exception.external.sql.sqlstate.XOpenSQLState
org.apache.shardingsphere.infra.exception.external.sql.type.feature
org.apache.shardingsphere.infra.exception.external.sql.type.generic
org.apache.shardingsphere.infra.exception.external.sql.type.kernel
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category
org.apache.shardingsphere.infra.exception.external.sql.type.wrapper
org.apache.shardingsphere.infra.exception.external.sql.vendor
java.lang

org.apache.shardingsphere.infra.exception.external.sql.type.feature

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 4 100.0% 100.0% 100.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.sql.type.feature.FeatureSQLException
None None com.google.common.base
java.lang
org.apache.shardingsphere.infra.exception.external.sql
org.apache.shardingsphere.infra.exception.external.sql.sqlstate

org.apache.shardingsphere.infra.exception.external.sql.type.generic

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 1 3 100.0% 75.0% 75.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.sql.type.generic.GenericSQLException
None org.apache.shardingsphere.infra.exception.external.sql.type.wrapper
java.lang
org.apache.shardingsphere.infra.exception.external.sql
org.apache.shardingsphere.infra.exception.external.sql.sqlstate

org.apache.shardingsphere.infra.exception.external.sql.type.kernel

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 1 4 100.0% 80.0% 80.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.sql.type.kernel.KernelSQLException
None org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category
com.google.common.base
java.lang
org.apache.shardingsphere.infra.exception.external.sql
org.apache.shardingsphere.infra.exception.external.sql.sqlstate

org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 3 100.0% 100.0% 100.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.ClusterSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.ConnectionSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.DataSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.LockSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.MetaDataSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.PipelineSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.SyntaxSQLException
org.apache.shardingsphere.infra.exception.external.sql.type.kernel.category.TransactionSQLException
None None java.lang
org.apache.shardingsphere.infra.exception.external.sql.sqlstate
org.apache.shardingsphere.infra.exception.external.sql.type.kernel

org.apache.shardingsphere.infra.exception.external.sql.type.wrapper

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 4 0.0% 100.0% 0.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages None org.apache.shardingsphere.infra.exception.external.sql.type.wrapper.SQLWrapperException
None java.lang
java.sql
org.apache.shardingsphere.infra.exception.external.sql.sqlstate
org.apache.shardingsphere.infra.exception.external.sql.type.generic

org.apache.shardingsphere.infra.exception.external.sql.vendor

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 2 100.0% 100.0% 100.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.external.sql.vendor.VendorError
None None java.lang
org.apache.shardingsphere.infra.exception.external.sql.sqlstate

org.apache.shardingsphere.infra.exception.internal

Packages Afferent Couplings Efferent Couplings Abstractness Instability Distance 0 1 100.0% 100.0% 100.0% Packages Abstract Classes Concrete Classes Used by Packages Uses Packages org.apache.shardingsphere.infra.exception.internal.ShardingSphereInternalException
None None java.lang

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.

Explanation 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.