| java.lang.Object
 org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl
org.apache.derby.impl.sql.execute.NoPutResultSetImpl
org.apache.derby.impl.sql.execute.IndexRowToBaseRowResultSet
| IndexRowToBaseRowResultSet | | class IndexRowToBaseRowResultSet extends NoPutResultSetImpl implements CursorResultSet(Code) | | Takes a result set with a RowLocation as the last column, and uses the
RowLocation to get and return a row from the given base conglomerate.
Normally, the input result set will be a TableScanResultSet scanning an
index conglomerate.
author:
jeff |
| Constructor Summary | |
| | IndexRowToBaseRowResultSet(long conglomId, int scociItem, Activation a, NoPutResultSet source, GeneratedMethod resultRowAllocator, int resultSetNumber, String indexName, int heapColRefItem, int indexColRefItem, int indexColMapItem, GeneratedMethod restriction, boolean forUpdate, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
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| Method Summary | |
| public void | close()
If the result set has been opened,
close the open scan. | | public ExecRow | getCurrentRow()
Gets last row returned. | | public ExecRow | getNextRowCore()
Return the requested values computed
from the next row (if any) for which
the restriction evaluates to true.
restriction and projection parameters
are evaluated for each row.
exception:
StandardException - thrown on failure.
exception:
StandardException - ResultSetNotOpen thrown if not yet open. | | public RowLocation | getRowLocation()
Return the RowLocation of the base row. | | public long | getTimeSpent(int type)
Return the total amount of time spent in this ResultSet
Parameters:
type - CURRENT_RESULTSET_ONLY - time spent only in this ResultSetENTIRE_RESULTSET_TREE - time spent in this ResultSet and below. | | public boolean | isForUpdate()
Is this ResultSet or it's source result set for update.
beetle 3865: updateable cursor using index scan. | | public void | openCore()
open this ResultSet. | | public void | positionScanAtRowLocation(RowLocation rl)
| | public void | reopenCore()
reopen this ResultSet. |
| copiedFromSource | | boolean copiedFromSource(Code) | | |
| currentRowPrescanned | | protected boolean currentRowPrescanned(Code) | | |
| restrictionTime | | public long restrictionTime(Code) | | |
| IndexRowToBaseRowResultSet | | IndexRowToBaseRowResultSet(long conglomId, int scociItem, Activation a, NoPutResultSet source, GeneratedMethod resultRowAllocator, int resultSetNumber, String indexName, int heapColRefItem, int indexColRefItem, int indexColMapItem, GeneratedMethod restriction, boolean forUpdate, double optimizerEstimatedRowCount, double optimizerEstimatedCost) throws StandardException(Code) | | |
| getNextRowCore | | public ExecRow getNextRowCore() throws StandardException(Code) | | Return the requested values computed
from the next row (if any) for which
the restriction evaluates to true.
restriction and projection parameters
are evaluated for each row.
exception:
StandardException - thrown on failure.
exception:
StandardException - ResultSetNotOpen thrown if not yet open. the next row in the result |
| getTimeSpent | | public long getTimeSpent(int type)(Code) | | Return the total amount of time spent in this ResultSet
Parameters:
type - CURRENT_RESULTSET_ONLY - time spent only in this ResultSetENTIRE_RESULTSET_TREE - time spent in this ResultSet and below. long The total amount of time spent (in milliseconds). |
| isForUpdate | | public boolean isForUpdate()(Code) | | Is this ResultSet or it's source result set for update.
beetle 3865: updateable cursor using index scan. We didn't need this function
before because we couldn't use index for update cursor.
Whether or not the result set is for update. |
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