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Java Persistence API (JPA) Extensions Reference for EclipseLink, Release 2.4
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history.as-of.scn

Use eclipselink.history.as-of.scn to configure the query to query the state of the object as-of a database SCN (System Change Number).


Values

Table 4-11 describes this query hint's values.

Table 4-11 Valid Values for history.as-of.scn

Value Description

value

Integer SCN value



Usage


NoteNote:

This query hint requires Oracle Flashback support.



Examples

Example 4-23 Using history.as-of.scn in a JPA Query

import org.eclipse.persistence.config.HintValues;
 import org.eclipse.persistence.config.QueryHints;
 query.setHint("eclipselink.AS_OF_SCN", "3");


Example 4-24 Using history.as-of.scn in @QueryHint Annotation

import org.eclipse.persistence.config.HintValues;
 import org.eclipse.persistence.config.QueryHints;
 @QueryHint(name=QueryHints.AS_OF_SCN, value="3");



See Also

For more information, see:

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