Table Constraints Classes
In addition to the multiple methods on various database classes, specific classes that support table constraints include:
RWDBIdentityConstraint
RWDBUniqueConstraint and
RWDBUniqueConstraintList
RWDBCheckConstraint and
RWDBCheckConstraintList
RWDBPrimaryKey
RWDBForeignKey and
RWDBForeignKeyListFigure 3 illustrates the architecture of the constraint classes.