Examples of org.eclipse.persistence.history.AsOfClause

org.eclipse.persistence.history.AsOfClause
Purpose:Wraps an immutable value for a past time. A session, query, or expression can be as of a past time.
For Oracle 9R2 Flasback corresponds to the sub clause which appears between the table and alias name in the FROM clause: SELECT ... FROM EMPLOYEE AS OF TIMESTAMP (value) t0, ...
For generic historical schema support, a special criteria can be added to the where clause for each table in a select: ((t0.ROW_START <= value) AND ((t0.END IS NULL) OR (t1.END> value)))
Responsibilities:
@since OracleAS TopLink 10g (10.0.3) @author Stephen McRitchie @see org.eclipse.persistence.expressions.Expression#asOf(AsOfClause) @see org.eclipse.persistence.queries.ObjectLevelReadQuery#asOf(AsOfClause) @see org.eclipse.persistence.sessions.Session#acquireSessionAsOf(AsOfClause) @see HistoryPolicy

1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timeFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader, AbstractSession activeSession) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timestampFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timeFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timeFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader, AbstractSession activeSession) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timeFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader, AbstractSession activeSession) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timestampFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timeFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader, AbstractSession activeSession) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timestampFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader, AbstractSession activeSession) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timestampFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896             super(QueryHints.AS_OF, "");         }             DatabaseQuery applyToDatabaseQuery(Object valueToApply, DatabaseQuery query, ClassLoader loader, AbstractSession activeSession) {             if (query.isObjectLevelReadQuery()) {                 ((ObjectLevelReadQuery) query).setAsOfClause(new AsOfClause(Helper.timestampFromString((String)valueToApply)));             } else {                 throw new IllegalArgumentException(ExceptionLocalization.buildMessage("ejb30-wrong-type-for-query-hint",new Object[]{getQueryId(query), name, getPrintValue(valueToApply)}));             }                         return query;

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