table: This extension specifies the table used to store the primary data for the class. If not specified, Kodo will auto-generate a table name based on the name of the class. This attribute is also used in multi-table inheritance mappings

pk-column: This extension is only for classes using datastore identity. It specifies the primary key column for the table in which the class is held. This column must be of a numeric type and must not be mapped to any fields of the class. If the pk-column extension is not specified, Kodo will add its own primary key column, usually named JDOIDX.

lock-column: This extension specifies the column used to record the version number of objects. Versioning is used to detect concurrent modification of objects during optimistic transactions. The given column must be of a numeric type and must not be mapped to any fields of the class. If the extension is not present, Kodo JDO will add its own lock column, usually named JDOLOCKX. You can prevent the creation of a lock column by specifying a value of none. In this case, concurrent modification violations will not be detected.

class-column: This column stores the class name of the object represented by each table row. The column must be a string type, and must be large enough to hold the full class name of any persistent class mapped to the table. It must not be mapped to any fields of the class. If the extension is not present, Kodo JDO will add its own class column, usually named JDOCLASSX. If the table's corresponding persistent class has no persistent subclasses and you do not want a column to be generated, specify a value of none.

subclass-provider: This optional extension stores the name of the SubclassProvider implementation to use for this class. This setting overrides the com.solarmetric.kodo.impl.jdbc.DefaultSubclassProviderClass configuration property.

This should only be set in the least-derived type in an inheritance tree. Values for this extension in derived types are silently ignored.

subclass-indicator-value: When using the IntegerSubclassProvider subclass provider, this required extension must be set to the integer value that the provider should use to identify this class. No two classes in the same class hierarchy can use the same integer value.

custom-mapping: This optional extension stores the name of the ClassMapping subclass to use for this class. This setting overrides the com.solarmetric.kodo.impl.jdbc.DefaultClassMappingClass configuration property.

This should only be set in the least-derived type in an inheritance tree. Values for this extension in derived types are silently ignored.

can-cache: This optional extension designates whether or not a given class should be included in the PersistenceManagerFactory cache, if any. Setting it to false will exclude the class associated with this extension. Defaults to true.