com.odi
Class IncompatibleClassException

java.lang.Object
  java.lang.Throwable
      java.lang.Exception
          java.lang.RuntimeException
              com.odi.ObjectStoreException
                  com.odi.SchemaException
                      com.odi.IncompatibleClassException

All Implemented Interfaces:

Serializable

public final class IncompatibleClassException

extends SchemaException

Thrown when an attempt is made to use a persistent object whose persistent schema does not match its current transient class definition. The following changes can cause this exception to be thrown:

• Adding or deleting a persistent instance field.
• Changing the type of a persistent instance field.
• Changing the order of persistent instance fields.
• Adding or deleting hashCode() methods - this affects whether or not the postprocessor adds a persistent hash code state field.
• Changing whether a class is abstract.
• Adding or removing classes in the inheritance graph, even if they contain no fields.

See Schema Evolution: Modifying Class Definitions of Objects in a Database, in the user guide.

See Also:

Serialized Form