oracle.toplink.history
Class AsOfSCNClause

java.lang.Object
  oracle.toplink.history.AsOfClause
      oracle.toplink.history.AsOfSCNClause

All Implemented Interfaces:

java.io.Serializable

public class AsOfSCNClause
extends AsOfClause

Purpose:Wraps an immutable value for a past time, represented as a database system change number.

This should be specified with an Oracle platform supporting flashback, and the value will be written to the SQL FROM clause:

SELECT ... FROM EMPLOYEE AS OF SCN (value) t0, ...

Since:

OracleAS TopLink 10g (10.0.3)

See Also:

AsOfClause, oracle.toplink.internal.databaseaccess.OraclePlatform#getSystemChangeNumberQuery, Serialized Form

Field Summary

Fields inherited from class oracle.toplink.history.AsOfClause

NO_CLAUSE

Constructor Summary

AsOfSCNClause(Expression expression)

AsOfSCNClause(long systemChangeNumber)

AsOfSCNClause(java.lang.Long systemChangeNumber)

AsOfSCNClause(java.lang.Number systemChangeNumber)

Method Summary

boolean

isAsOfSCNClause()

Methods inherited from class oracle.toplink.history.AsOfClause

getValue, isUniversal, toString

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

AsOfSCNClause

public AsOfSCNClause(java.lang.Number systemChangeNumber)

AsOfSCNClause

public AsOfSCNClause(java.lang.Long systemChangeNumber)

AsOfSCNClause

public AsOfSCNClause(long systemChangeNumber)

AsOfSCNClause

public AsOfSCNClause(Expression expression)

Method Detail

isAsOfSCNClause

public boolean isAsOfSCNClause()

Overrides:

isAsOfSCNClause in class AsOfClause

See Also:

AsOfSCNClause