Inheritance Tab

Use to specify the descriptor's inheritance properties as either a root or subclass (branch class or leaf class).

Read Subclasses on Query

Specify if TopLink should instantiate the descriptor's subclasses when queried. Select a database view to use for reading subclasses if desired.

Note: The view can be used for root or branch classes that have subclasses spanning multiple tables. The view must apply an outer-join or union all to the subclass tables.

Read Subclasses View: Select a database table to use when reading subclasses.

Is Root Descriptor

Specify if this descriptor is a "root" in the inheritance tree.

Use Class Extraction Method

Specify to use a class extraction method to specify which class to instantiate on queries.

Use Class Indicator Field

Specify to use a class indicator field to specify which class to instantiate on queries.

Use Class Name as Indicator: When using a class indicator field, specify to use the class name as the indicator.
Use Class Indicator Dictionary: When using a class indicator field, specify to use a lass indicator dictionary as the indicator.
Indicator Type: When using a class indicator dictionary, select which subclasses to include. Click Edit to enter an indicator value for each subclass.

Parent Descriptor

For branch and leaf classes, select this descriptor's parent.