Examples of java.sql.DatabaseMetaData.updatesAreDetected()

java.sql.DatabaseMetaData.updatesAreDetected()
Determine if the method ResultSet.rowUpdated can detect a visible row update. @param type ResultSet type: ResultSet.TYPE_FORWARD_ONLY, ResultSet.TYPE_SCROLL_INSENSITIVE, or ResultSet.TYPE_SCROLL_SENSITIVE @return true detecting changes is possible otherwisefalse. @throws SQLException a database error occurred

        assertTrue(dmd.deletesAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.deletesAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_FORWARD_ONLY));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        assertFalse(dmd.updatesAreDetected(ResultSet.TYPE_FORWARD_ONLY));
        assertTrue(dmd.updatesAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.updatesAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        
        // others*AreVisible
        // Since Derby materializes a forward only ResultSet incrementally,

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        assertFalse(dmd.deletesAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_FORWARD_ONLY));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        assertFalse(dmd.updatesAreDetected(ResultSet.TYPE_FORWARD_ONLY));
        assertTrue(dmd.updatesAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.updatesAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        
        // others*AreVisible
        // Since Derby materializes a forward only ResultSet incrementally, 
        //   it is possible to see changes for FORWARD_ONLY

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        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_FORWARD_ONLY));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.insertsAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        assertFalse(dmd.updatesAreDetected(ResultSet.TYPE_FORWARD_ONLY));
        assertTrue(dmd.updatesAreDetected(ResultSet.TYPE_SCROLL_INSENSITIVE));
        assertFalse(dmd.updatesAreDetected(ResultSet.TYPE_SCROLL_SENSITIVE));
        
        // others*AreVisible
        // Since Derby materializes a forward only ResultSet incrementally, 
        //   it is possible to see changes for FORWARD_ONLY
        // Scroll insensitive ResultSet by their definition do not see changes

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