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 ]
Summary
| Package |
TC |
CC |
AC |
Ca |
Ce |
A |
I |
D |
V |
| org.apache.shardingsphere.proxy.backend.mysql.connector.jdbc.statement |
1 |
1 |
0 |
0 |
8 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin |
1 |
1 |
0 |
0 |
13 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.select |
2 |
2 |
0 |
1 |
12 |
0.0% |
92.0% |
8.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.show |
2 |
2 |
0 |
1 |
12 |
0.0% |
92.0% |
8.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar |
3 |
2 |
1 |
1 |
3 |
33.0% |
75.0% |
8.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider |
5 |
5 |
0 |
0 |
9 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.charset |
1 |
1 |
0 |
1 |
5 |
0.0% |
83.0% |
17.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.session |
1 |
1 |
0 |
0 |
2 |
0.0% |
100.0% |
0.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory |
1 |
1 |
0 |
1 |
9 |
0.0% |
90.0% |
10.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema |
2 |
1 |
1 |
1 |
9 |
50.0% |
90.0% |
40.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type |
1 |
1 |
0 |
1 |
5 |
0.0% |
83.0% |
17.0% |
1 |
| org.apache.shardingsphere.proxy.backend.mysql.state |
1 |
1 |
0 |
0 |
6 |
0.0% |
100.0% |
0.0% |
1 |
Packages
[ summary ] [ packages ] [ cycles ] [ explanations ]
org.apache.shardingsphere.proxy.backend.mysql.connector.jdbc.statement
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
8 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.connector.jdbc.statement.MySQLStatementMemoryStrictlyFetchSizeSetter
|
None |
java.lang
java.sql
org.apache.shardingsphere.infra.config.props
org.apache.shardingsphere.infra.metadata
org.apache.shardingsphere.mode.manager
org.apache.shardingsphere.mode.metadata
org.apache.shardingsphere.proxy.backend.connector.jdbc.statement
org.apache.shardingsphere.proxy.backend.context
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
13 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.MySQLAdminExecutorCreator
|
None |
java.lang
java.util
org.apache.shardingsphere.infra.binder.context.statement
org.apache.shardingsphere.infra.binder.context.statement.type.dml
org.apache.shardingsphere.mode.manager
org.apache.shardingsphere.mode.metadata
org.apache.shardingsphere.proxy.backend.context
org.apache.shardingsphere.proxy.backend.handler.admin.executor
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory
org.apache.shardingsphere.sql.parser.statement.core.statement
org.apache.shardingsphere.sql.parser.statement.core.statement.type.dal
org.apache.shardingsphere.sql.parser.statement.mysql.dal
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.select
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
12 |
0.0% |
92.0% |
8.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.select.ShowConnectionIdExecutor
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.select.ShowCurrentDatabaseExecutor
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type
|
java.lang
java.sql
java.util
org.apache.shardingsphere.infra.executor.sql.execute.result.query
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.raw.metadata
org.apache.shardingsphere.infra.merge.result
org.apache.shardingsphere.infra.merge.result.impl.local
org.apache.shardingsphere.infra.metadata
org.apache.shardingsphere.proxy.backend.handler.admin.executor
org.apache.shardingsphere.proxy.backend.session
org.apache.shardingsphere.sql.parser.statement.core.segment.dml.item
org.apache.shardingsphere.sql.parser.statement.core.statement.type.dml
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.show
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
12 |
0.0% |
92.0% |
8.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.show.MySQLShowFunctionStatusExecutor
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.show.MySQLShowProcedureStatusExecutor
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory
|
java.lang
java.sql
java.util
org.apache.shardingsphere.infra.executor.sql.execute.result.query
org.apache.shardingsphere.infra.executor.sql.execute.result.query.impl.raw.metadata
org.apache.shardingsphere.infra.merge.result
org.apache.shardingsphere.infra.merge.result.impl.local
org.apache.shardingsphere.infra.metadata
org.apache.shardingsphere.proxy.backend.handler.admin.executor
org.apache.shardingsphere.proxy.backend.session
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.function
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.procedure
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
3 |
33.0% |
75.0% |
8.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.MySQLSystemVariableValueProvider
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.MySQLSystemVariableFlag
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.MySQLSystemVariableValueProvider$1
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider
|
java.lang
java.util
org.apache.shardingsphere.proxy.backend.session
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
9 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider.CharsetValueProvider
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider.CharsetValueProvider$1
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider.TransactionIsolationValueProvider
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider.TransactionReadOnlyValueProvider
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider.VersionValueProvider
|
None |
java.lang
java.util
org.apache.shardingsphere.database.connector.core.type
org.apache.shardingsphere.database.protocol.constant
org.apache.shardingsphere.infra.spi.type.typed
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.charset
org.apache.shardingsphere.proxy.backend.session
org.apache.shardingsphere.sql.parser.statement.core.enums
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.charset
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
5 |
0.0% |
83.0% |
17.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.charset.MySQLSessionCharsetContext
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.sysvar.provider
|
io.netty.util
java.lang
java.util
org.apache.shardingsphere.database.protocol.constant
org.apache.shardingsphere.database.protocol.mysql.constant
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.session
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
2 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.variable.session.MySQLReplayedSessionVariableProvider
|
None |
java.lang
org.apache.shardingsphere.proxy.backend.handler.admin.executor.variable.session
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
9 |
0.0% |
90.0% |
10.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.MySQLShowAdminExecutorFactory
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin
|
java.lang
java.util
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.show
org.apache.shardingsphere.sql.parser.statement.core.statement
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.database
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.function
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.procedure
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.process
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.table
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
9 |
50.0% |
90.0% |
40.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.MySQLSpecialTableQueryExecutorFactory
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.MySQLSystemSchemaQueryExecutorFactory
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type
|
java.lang
java.util
org.apache.shardingsphere.infra.binder.context.statement.type.dml
org.apache.shardingsphere.infra.metadata.database.schema.manager
org.apache.shardingsphere.proxy.backend.handler.admin.executor
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type
org.apache.shardingsphere.sql.parser.statement.core.segment.generic.table
org.apache.shardingsphere.sql.parser.statement.core.statement.type.dml
org.apache.shardingsphere.sql.parser.statement.core.value.identifier
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 1 |
5 |
0.0% |
83.0% |
17.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type.MySQLSchemataQueryExecutorFactory
|
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema
|
java.lang
java.util
org.apache.shardingsphere.infra.binder.context.statement.type.dml
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.executor.select
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema
|
org.apache.shardingsphere.proxy.backend.mysql.state
Packages
| Afferent Couplings |
Efferent Couplings |
Abstractness |
Instability |
Distance |
| 0 |
6 |
0.0% |
100.0% |
0.0% |
Packages
| Abstract Classes |
Concrete Classes |
Used by Packages |
Uses Packages |
| None |
org.apache.shardingsphere.proxy.backend.mysql.state.MySQLProxyStateSupportedSQLProvider
|
None |
java.lang
java.util
org.apache.shardingsphere.proxy.backend.state
org.apache.shardingsphere.sql.parser.statement.mysql.dal
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.database
org.apache.shardingsphere.sql.parser.statement.mysql.dal.show.privilege
|
Cycles
[ summary ] [ packages ] [ cycles ] [ explanations ]
Cycles
| Package |
Package Dependencies |
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema
|
| org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type |
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema
org.apache.shardingsphere.proxy.backend.mysql.handler.admin.factory.schema.type
|
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. |
