Apache Derby Database Engine and Embedded JDBC Driver 10.17.1.0 · org.apache.derby.impl.sql.execute.TemporaryRowHolderResultSet

Modifier and Type	Field and Description
private RowLocation	baseRowLocation
private ExecRow	currentRow
private boolean	currRowFromMem
private boolean	finished
pack-priv ConglomerateController	heapCC
private TemporaryRowHolderImpl	holder
pack-priv DataValueDescriptor[]	indexRow
pack-priv ScanController	indexsc
private boolean	isAppendable
private boolean	isOpen
private boolean	isVirtualMemHeap
private int	numRowsOut
private long	positionIndexConglomId
private ResultDescription	resultDescription
private ExecRow[]	rowArray
private ScanController	scan
private TransactionController	tc

Access	Constructor and Description
public	TemporaryRowHolderResultSet(TransactionController the xact controller tc, ExecRow[] the row array rowArray, ResultDescription value returned by getResultDescription() resultDescription, boolean isVirtualMemHeap, TemporaryRowHolderImpl holder) Constructor
public	TemporaryRowHolderResultSet(TransactionController the xact controller tc, ExecRow[] the row array rowArray, ResultDescription value returned by getResultDescription() resultDescription, boolean isVirtualMemHeap, boolean true,if we can insert rows after this result is created isAppendable, long conglomId of the index which has order rows are inserted and their row location positionIndexConglomId, TemporaryRowHolderImpl holder) Constructor

Method Summary

Modifier and Type	Method and Description
public void	addWarning(SQLWarning the warning to add w) Implements org.apache.derby.iapi.sql.ResultSet.addWarning. Add a warning to this result set.
public boolean	Returns: true if before the first row, false otherwise. Returns false when the result set contains no rows. checkRowPosition(int The desired position type isType) Implements org.apache.derby.iapi.sql.ResultSet.checkRowPosition. Determine if the cursor is before the first row in the result set.
public void	cleanUp() Implements org.apache.derby.iapi.sql.ResultSet.cleanUp. Tells the system to clean up on an error.
public void	clearCurrentRow() Implements org.apache.derby.iapi.sql.ResultSet.clearCurrentRow. Clear the current row
public Object	clone() Overrides java.lang.Object.clone. Shallow clone this result set.
public void	close() Implements org.apache.derby.iapi.sql.ResultSet.close. Clean up
public void	closeRowSource() Implements org.apache.derby.iapi.store.access.RowSource.closeRowSource. closeRowSource tells the RowSource that it will no longer need to return any rows and it can release any resource it may have.
public void	deleteCurrentRow()
public void	finish() Implements org.apache.derby.iapi.sql.ResultSet.finish. Tells the system that there will be no more access to any database information via this result set; in particular, no more calls to open().
public ExecRow	Returns: The row at the absolute position, or NULL if no such position. getAbsoluteRow(int The position. row) Implements org.apache.derby.iapi.sql.ResultSet.getAbsoluteRow. Returns the row at the absolute position from the query, and returns NULL when there is no such position.
public final Activation	Returns: activation getActivation() Implements org.apache.derby.iapi.sql.ResultSet.getActivation. Return the `Activation` for this result set.
public ResultSet	getAutoGeneratedKeysResultset() Implements org.apache.derby.iapi.sql.ResultSet.getAutoGeneratedKeysResultset. ResultSet for rows inserted into the table (contains auto-generated keys columns only)
public Timestamp	Returns: Timestamp The Timestamp for the beginning of execution. getBeginExecutionTimestamp() Implements org.apache.derby.iapi.sql.ResultSet.getBeginExecutionTimestamp. Get the Timestamp for the beginning of execution.
public ExecRow	Returns: the last row returned; getCurrentRow() Implements org.apache.derby.iapi.sql.execute.CursorResultSet.getCurrentRow. This result set has its row from the last fetch done.
public String	Returns: A String with the name of the cursor, if any. Returns NULL if this is not a cursor statement. getCursorName() Implements org.apache.derby.iapi.sql.ResultSet.getCursorName. Returns the name of the cursor, if this is cursor statement of some type (declare, open, fetch, positioned update, positioned delete, close).
public Timestamp	Returns: Timestamp The Timestamp for the end of execution. getEndExecutionTimestamp() Implements org.apache.derby.iapi.sql.ResultSet.getEndExecutionTimestamp. Get the Timestamp for the end of execution.
public double	Returns: The estimated row count (as a double) from this result set. getEstimatedRowCount() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.getEstimatedRowCount. Get the estimated row count from this result set.
public long	Returns: long The execution time in milliseconds. getExecuteTime() Implements org.apache.derby.iapi.sql.ResultSet.getExecuteTime. Get the execution time in milliseconds.
public ExecRow	Returns: The first row, or NULL if no rows. getFirstRow() Implements org.apache.derby.iapi.sql.ResultSet.getFirstRow. Returns the first row from the query, and returns NULL when there are no rows.
public ExecRow	Returns: The last row, or NULL if no rows. getLastRow() Implements org.apache.derby.iapi.sql.ResultSet.getLastRow. Returns the last row from the query, and returns NULL when there are no rows.
public static TemporaryRowHolderResultSet	Returns: a single row result set getNewRSOnCurrentRow(TriggerDescriptor We are building Temp resultset for this trigger triggerd, Activation the activation activation, CursorResultSet the result set rs, int[] The passed resultset is composed of these columns. We will create a temp resultset which will have either all these columns or only a subset of these columns. It all depends on what columns are needed by the trigger. If this param is null, then that means that all the columns from the trigger table have been read into the passed resultset. colsReadFromTable) Whip up a new Temp ResultSet that has a single row.
private ExecRow	getNextAppendedRow()
public ExecRow	Returns: The next row, or NULL if no more rows. getNextRow() Implements org.apache.derby.iapi.sql.ResultSet.getNextRow. Returns the next row from the query, and returns NULL when there are no more rows.
public ExecRow	Returns: the next row, or null if none getNextRowCore() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.getNextRowCore. Get the next row.
public DataValueDescriptor[]	getNextRowFromRowSource() Implements org.apache.derby.iapi.store.access.RowSource.getNextRowFromRowSource. Get the next row as an array of column objects.
public int	Returns: int Point of attachment (result set number) for this subquery. (-1 if not a subquery - also Sanity violation) getPointOfAttachment() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.getPointOfAttachment. Return the point of attachment for this subquery.
public ExecRow	Returns: The previous row, or NULL if no more previous rows. getPreviousRow() Implements org.apache.derby.iapi.sql.ResultSet.getPreviousRow. Returns the previous row from the query, and returns NULL when there are no more previous rows.
public ExecRow	Returns: The row at the relative position, or NULL if no such position. getRelativeRow(int The position. row) Implements org.apache.derby.iapi.sql.ResultSet.getRelativeRow. Returns the row at the relative position from the current cursor position, and returns NULL when there is no such position.
public ResultDescription	Returns: A ResultDescription describing the results of the statement. getResultDescription() Implements org.apache.derby.iapi.sql.ResultSet.getResultDescription. Returns a ResultDescription object, which describes the results of the statement this ResultSet is in. This will not be a description of this particular ResultSet, if this is not the outermost ResultSet.
public RowLocation	Returns: the row location of the current cursor row. getRowLocation() Implements org.apache.derby.iapi.sql.execute.CursorResultSet.getRowLocation. Returns the row location of the current base table row of the cursor.
public int	Returns: the row number, or 0 if not on a row getRowNumber() Implements org.apache.derby.iapi.sql.ResultSet.getRowNumber. Returns the row number of the current row.
public int	Returns: The isolation level of the scan (in TransactionController constants). getScanIsolationLevel() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.getScanIsolationLevel. Return the isolation level of the scan in the result set.
public NoPutResultSet[]	Returns: NoPutResultSet[] Array of NoPutResultSets for subqueries. getSubqueryTrackingArray(int The size of the array (For allocation on demand.) numSubqueries) Implements org.apache.derby.iapi.sql.ResultSet.getSubqueryTrackingArray. Get the subquery ResultSet tracking array from the top ResultSet.
public long	Returns: long The total amount of time spent (in milliseconds). getTimeSpent(int CURRENT_RESULTSET_ONLY - time spent only in this ResultSet ENTIRE_RESULTSET_TREE - time spent in this ResultSet and below. type) Implements org.apache.derby.iapi.sql.ResultSet.getTimeSpent. Return the total amount of time spent in this ResultSet
public FormatableBitSet	getValidColumns() Implements org.apache.derby.iapi.store.access.RowSource.getValidColumns. getValidColumns describes the DataValueDescriptor[] returned by all calls to the getNextRowFromRowSource() call.
public SQLWarning	getWarnings() Implements org.apache.derby.iapi.sql.ResultSet.getWarnings. Return the set of warnings generated during the execution of this result set.
public boolean	Returns: true if the ResultSet has been closed. isClosed() Implements org.apache.derby.iapi.sql.ResultSet.isClosed. Find out if the ResultSet is closed or not.
public boolean	Returns: Whether or not the result set is for update. isForUpdate() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.isForUpdate. Is this ResultSet or it's source result set for update This method will be overriden in the inherited Classes if it is true
private static int[]	justTheRequiredColumnsPositions(int[] columnsArrary)
public void	markAsTopResultSet() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.markAsTopResultSet. Mark the ResultSet as the topmost one in the ResultSet tree.
public void	markRowAsDeleted() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.markRowAsDeleted. Marks the resultSet's currentRow as deleted after a delete has been issued by either by using positioned delete or JDBC's deleteRow method.
public long	modifiedRowCount() Implements org.apache.derby.iapi.sql.ResultSet.modifiedRowCount. Returns the number of rows affected by the statement.
public boolean	Returns: true iff this row source expects some row location to be returned needsRowLocation() Implements org.apache.derby.iapi.store.access.RowLocationRetRowSource.needsRowLocation. needsRowLocation returns true iff this the row source expects the drainer of the row source to call rowLocation after getting a row from getNextRowFromRowSource.
public boolean	needsRowLocationForDeferredCheckConstraints() Implements org.apache.derby.iapi.store.access.RowLocationRetRowSource.needsRowLocationForDeferredCheckConstraints.
public boolean	needsToClone() Implements org.apache.derby.iapi.store.access.RowSource.needsToClone. Does the caller of getNextRowFromRowSource() need to clone the row in order to keep a reference to the row past the getNextRowFromRowSource() call which returned the row.
public void	offendingRowLocation(RowLocation rl, long containdId) Implements org.apache.derby.iapi.store.access.RowLocationRetRowSource.offendingRowLocation.
public void	open() Implements org.apache.derby.iapi.sql.ResultSet.open. Tells the system that there will be calls to getNextRow().
public void	openCore() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.openCore. Open the scan and evaluate qualifiers and the like.
public void	positionScanAtRowLocation(RowLocation row location of the current cursor row rl) Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.positionScanAtRowLocation. Positions the cursor in the specified rowLocation.
public void	reopenCore() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.reopenCore. Reopen the scan.
public boolean	requiresRelocking() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.requiresRelocking. Do we need to relock the row when going to the heap.
public void	reset(ExecRow[] the row array rowArray) Reset the exec row array and reinitialize
public void	reStartScan(long currentConglomId, long pconglomId) postion scan to start from after where we stopped earlier
public int	resultSetNumber() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.resultSetNumber. Get the number of this ResultSet, which is guaranteed to be unique within a statement.
public boolean	Returns: TRUE if the statement returns rows, FALSE if not. returnsRows() Implements org.apache.derby.iapi.sql.ResultSet.returnsRows. Returns TRUE if the statement returns rows (i.e. is a SELECT or FETCH statement), FALSE if it returns no rows.
public void	rowLocation(RowLocation rl) Implements org.apache.derby.iapi.store.access.RowLocationRetRowSource.rowLocation. rowLocation is a callback for the drainer of the row source to return the rowLocation of the current row, i.e, the row that is being returned by getNextRowFromRowSource.
public ExecRow	Returns: NULL. setAfterLastRow() Implements org.apache.derby.iapi.sql.ResultSet.setAfterLastRow. Sets the current position to after the last row and returns NULL because there is no current row.
public ExecRow	Returns: NULL. setBeforeFirstRow() Implements org.apache.derby.iapi.sql.ResultSet.setBeforeFirstRow. Sets the current position to before the first row and returns NULL because there is no current row.
public void	setCurrentRow(ExecRow the new current row row) Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.setCurrentRow. Set the current row to the row passed in.
public void	setHasDeferrableChecks() Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.setHasDeferrableChecks. Set that we are acting on behalf of an insert result set that has deferrable check constraints
public void	setNeedsRowLocation(boolean needsRowLocation) Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.setNeedsRowLocation. Set whether or not the NPRS need the row location when acting as a row source.
public void	setTargetResultSet(TargetResultSet The TargetResultSet. trs) Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.setTargetResultSet. Notify a NPRS that it is the source for the specified TargetResultSet.
private void	setupPositionBasedScan(long position)
private static int[]	shrinkArray(int[] columnsArrary)
private static int[]	supersetofAllColumns(int[] columnsArray1, int[] columnsArray2)
public Element	toXML(Element Node to put content into. parentNode, String Element tag for content tag) Implements org.apache.derby.iapi.sql.ResultSet.toXML. Produce an xml image of this ResultSet and its descendant ResultSets.
public void	updateRow(ExecRow new values for the currentRow row, RowChanger holds information about row: what columns of it is to be used for updating, and what underlying base table column each such column corresponds to. rowChanger) Implements org.apache.derby.iapi.sql.execute.NoPutResultSet.updateRow. Updates the resultSet's current row with it's new values after an update has been issued either using positioned update or JDBC's udpateRow method.

Inherited from java.lang.Object:: equals finalize getClass hashCode notify notifyAll toString wait wait wait

pack-priv Class TemporaryRowHolderResultSet

Field Summary

Constructor Summary

Method Summary