| Interface | Description | 
|---|---|
| BatchUpdateAssistant | 
 Assists an upgrade action to perfom efficient updates of a database table
 with a large number of rows. 
 | 
| BatchUpdateAssistant.BatchUpdate | 
 Controls the behavior of  
BatchUpdateAssistant
 for an upgrade action. | 
| ProgressAssistant | 
 Allows an upgrade action to record its progress. 
 | 
| RowChangeAssistant | 
 Allows an upgrade action to receive notification of changes made to rows
 in a database table. 
 | 
| RowChangeAssistant.RowChange | 
 A change to a row in a database table. 
 | 
| StateAssistant | 
 Allows an upgrade action to pass name/value pairs between  
UpgradeAction method invocations, even if, for a particular upgrade
 action, successive method invocations take place against different
 UpgradeAction Java objects. | 
| UpgradeAction | 
 A step in a schema upgrade. 
 | 
| UpgradeActionContext | 
 The context within which an upgrade action is performed. 
 | 
| UpgradeActionError | 
 A non-fatal error reported by an UpgradeAction. 
 | 
| UpgradeActionStatus | 
 The status of a particular upgrade action in a current or previous schema
 upgrade. 
 | 
| UpgradeDriverListener | 
 Receives notification of schema upgrade driver events. 
 | 
| UpgradeDriverManager | 
 The management interface for a schema upgrade. 
 | 
| UpgradeStatus | 
 The status of a current or previous schema upgrade. 
 | 
| Class | Description | 
|---|---|
| UpgradeDriverFactory | 
 Constructs a schema upgrade driver. 
 | 
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