java.lang.Object
- org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl
- - org.apache.derby.impl.sql.execute.NoPutResultSetImpl
  - - org.apache.derby.impl.sql.execute.IndexRowToBaseRowResultSet

All Implemented Interfaces:

CursorResultSet, NoPutResultSet, ResultSet, RowLocationRetRowSource, RowSource
```
class IndexRowToBaseRowResultSet
extends NoPutResultSetImpl
implements CursorResultSet
```
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.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl
  BasicNoPutResultSetImpl.FieldComparator

Field Summary

Fields
Modifier and Type	Field	Description
`private int`	`_baseColumnCount`
`private FormatableBitSet`	`_heapColsWithoutRowLocation`
`private boolean`	`_includeRowLocation`
`private FormatableBitSet`	`accessedAllCols`
`FormatableBitSet`	`accessedHeapCols`
`private ConglomerateController`	`baseCC`
`(package private) RowLocation`	`baseRowLocation`
`private boolean`	`closeBaseCCHere`
`(package private) boolean`	`copiedFromSource`
`private DynamicCompiledOpenConglomInfo`	`dcoci`
`private boolean`	`forUpdate`
`private int[]`	`indexCols`
`java.lang.String`	`indexName`
`private GeneratedMethod`	`restriction`
`long`	`restrictionTime`
`private DataValueDescriptor[]`	`rowArray`
`private StaticCompiledOpenConglomInfo`	`scoci`
`NoPutResultSet`	`source`

Fields inherited from class org.apache.derby.impl.sql.execute.NoPutResultSetImpl
checkNullCols, clonedExecRow, cncLen, resultSetNumber, targetResultSet

Fields inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl
activation, beginTime, closeTime, compactRow, constructorTime, currentRow, endExecutionTime, finished, isOpen, isTopResultSet, nextTime, numOpens, openTime, optimizerEstimatedCost, optimizerEstimatedRowCount, resultDescription, rowsFiltered, rowsSeen, startExecutionTime, subqueryTrackingArray

Fields inherited from interface org.apache.derby.iapi.sql.execute.NoPutResultSet
ABSOLUTE, FIRST, LAST, NEXT, PREVIOUS, RELATIVE, TEMPORARY_RESULT_SET_NUMBER

Fields inherited from interface org.apache.derby.iapi.sql.ResultSet
CURRENT_RESULTSET_ONLY, ENTIRE_RESULTSET_TREE, ISAFTERLAST, ISBEFOREFIRST, ISFIRST, ISLAST

Constructor Summary

Constructors
Constructor	Description
`IndexRowToBaseRowResultSet(long conglomId, int scociItem, Activation a, NoPutResultSet source, int resultRowAllocator, int resultSetNumber, java.lang.String indexName, int heapColRefItem, int allColRefItem, int heapOnlyColRefItem, int indexColMapItem, GeneratedMethod restriction, boolean forUpdate, double optimizerEstimatedRowCount, double optimizerEstimatedCost, int baseColumnCount)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`close()`	If the result set has been opened, close the open scan.
`ExecRow`	`getCurrentRow()`	Gets last row returned.
`ExecRow`	`getNextRowCore()`	Return the requested values computed from the next row (if any) for which the restriction evaluates to true.
`RowLocation`	`getRowLocation()`	Return the RowLocation of the base row.
`long`	`getTimeSpent(int type)`	Return the total amount of time spent in this ResultSet
`boolean`	`isForUpdate()`	Is this ResultSet or it's source result set for update.
`void`	`openCore()`	open this ResultSet.
`void`	`positionScanAtRowLocation(RowLocation rl)`	Positions the cursor in the specified rowLocation.
`void`	`reopenCore()`	reopen this ResultSet.

Methods inherited from class org.apache.derby.impl.sql.execute.NoPutResultSetImpl
clearCurrentRow, clearOrderableCache, closeRowSource, getCursorName, getNextRowFromRowSource, getResultDescription, getValidColumns, markRowAsDeleted, needsRowLocation, needsRowLocationForDeferredCheckConstraints, needsToClone, offendingRowLocation, printQualifiers, resultSetNumber, rowLocation, setCurrentRow, setHasDeferrableChecks, setNeedsRowLocation, setTargetResultSet, skipRow, skipScan, unpackHashValue, updateRow

Methods inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl
addWarning, attachStatementContext, checkCancellationFlag, checkRowPosition, childrenToXML, cleanUp, dumpTimeStats, finish, finishAndRTS, getAbsoluteRow, getActivation, getAutoGeneratedKeysResultset, getBeginExecutionTimestamp, getCompactRow, getCurrentTimeMillis, getElapsedMillis, getEndExecutionTimestamp, getEstimatedRowCount, getExecuteTime, getExecutionFactory, getFirstRow, getLanguageConnectionContext, getLastRow, getNextRow, getPointOfAttachment, getPreviousRow, getRelativeRow, getRowNumber, getScanIsolationLevel, getSubqueryTrackingArray, getTransactionController, getWarnings, isClosed, isXplainOnlyMode, markAsTopResultSet, modifiedRowCount, open, recordConstructorTime, requiresRelocking, returnsRows, setAfterLastRow, setBeforeFirstRow, setCompactRow, setCompatRow, toXML, toXML

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.derby.iapi.sql.ResultSet
addWarning, checkRowPosition, cleanUp, clearCurrentRow, finish, getAbsoluteRow, getActivation, getAutoGeneratedKeysResultset, getBeginExecutionTimestamp, getCursorName, getEndExecutionTimestamp, getExecuteTime, getFirstRow, getLastRow, getNextRow, getPreviousRow, getRelativeRow, getResultDescription, getRowNumber, getSubqueryTrackingArray, getWarnings, isClosed, modifiedRowCount, open, returnsRows, setAfterLastRow, setBeforeFirstRow, toXML

- Field Detail
  - source
```
public NoPutResultSet source
```
  - restriction
```
private GeneratedMethod restriction
```
  - accessedHeapCols
```
public FormatableBitSet accessedHeapCols
```
  - accessedAllCols
```
private FormatableBitSet accessedAllCols
```
  - indexName
```
public java.lang.String indexName
```
  - indexCols
```
private int[] indexCols
```
  - dcoci
```
private DynamicCompiledOpenConglomInfo dcoci
```
  - scoci
```
private StaticCompiledOpenConglomInfo scoci
```
  - baseCC
```
private ConglomerateController baseCC
```
  - closeBaseCCHere
```
private boolean closeBaseCCHere
```
  - forUpdate
```
private boolean forUpdate
```
  - rowArray
```
private DataValueDescriptor[] rowArray
```
  - baseRowLocation
```
RowLocation baseRowLocation
```
  - copiedFromSource
```
boolean copiedFromSource
```
  - restrictionTime
```
public long restrictionTime
```
  - _baseColumnCount
```
private int _baseColumnCount
```
  - _includeRowLocation
```
private boolean _includeRowLocation
```
  - _heapColsWithoutRowLocation
```
private FormatableBitSet _heapColsWithoutRowLocation
```
- Constructor Detail
  - IndexRowToBaseRowResultSet
```
IndexRowToBaseRowResultSet(long conglomId,
                           int scociItem,
                           Activation a,
                           NoPutResultSet source,
                           int resultRowAllocator,
                           int resultSetNumber,
                           java.lang.String indexName,
                           int heapColRefItem,
                           int allColRefItem,
                           int heapOnlyColRefItem,
                           int indexColMapItem,
                           GeneratedMethod restriction,
                           boolean forUpdate,
                           double optimizerEstimatedRowCount,
                           double optimizerEstimatedCost,
                           int baseColumnCount)
                    throws StandardException
```
    Throws:
    
    StandardException
- Method Detail
  - openCore
```
public void openCore()
              throws StandardException
```
    open this ResultSet.
    
    Specified by:
    
    openCore in interface NoPutResultSet
    
    Throws:
    
    StandardException - thrown if cursor finished.
  - reopenCore
```
public void reopenCore()
                throws StandardException
```
    reopen this ResultSet.
    
    Specified by:
    
    reopenCore in interface NoPutResultSet
    
    Overrides:
    
    reopenCore in class BasicNoPutResultSetImpl
    
    Throws:
    
    StandardException - thrown if cursor finished.
    
    See Also:
    
    NoPutResultSet.openCore()
  - getNextRowCore
```
public ExecRow getNextRowCore()
                       throws StandardException
```
    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.
    
    Specified by:
    
    getNextRowCore in interface NoPutResultSet
    
    Specified by:
    
    getNextRowCore in class BasicNoPutResultSetImpl
    
    Returns:
    
    the next row in the result
    
    Throws:
    
    StandardException - thrown on failure.
    
    StandardException - ResultSetNotOpen thrown if not yet open.
    
    See Also:
    
    NoPutResultSet.getNextRowCore()
  - close
```
public void close()
           throws StandardException
```
    If the result set has been opened, close the open scan.
    
    Specified by:
    
    close in interface ResultSet
    
    Overrides:
    
    close in class NoPutResultSetImpl
    
    Throws:
    
    StandardException - thrown on error
  - getTimeSpent
```
public long getTimeSpent(int type)
```
    Return the total amount of time spent in this ResultSet
    
    Specified by:
    
    getTimeSpent in interface ResultSet
    
    Parameters:
    
    type - CURRENT_RESULTSET_ONLY - time spent only in this ResultSet ENTIRE_RESULTSET_TREE - time spent in this ResultSet and below.
    
    Returns:
    
    long The total amount of time spent (in milliseconds).
  - getRowLocation
```
public RowLocation getRowLocation()
                           throws StandardException
```
    Return the RowLocation of the base row.
    
    Specified by:
    
    getRowLocation in interface CursorResultSet
    
    Returns:
    
    the row location of the current cursor row.
    
    Throws:
    
    StandardException - thrown on failure.
    
    See Also:
    
    CursorResultSet
  - positionScanAtRowLocation
```
public void positionScanAtRowLocation(RowLocation rl)
                               throws StandardException
```
    Description copied from interface: NoPutResultSet
    
    Positions the cursor in the specified rowLocation. Used for scrollable insensitive result sets in order to position the cursor back to a row that has already be visited.
    
    Specified by:
    
    positionScanAtRowLocation in interface NoPutResultSet
    
    Overrides:
    
    positionScanAtRowLocation in class NoPutResultSetImpl
    
    Parameters:
    
    rl - row location of the current cursor row
    
    Throws:
    
    StandardException - thrown on failure to get location from storage engine
    
    See Also:
    
    Also remembers row location so that subsequent invocations of getCurrentRow will not read the index row to look up the row location base row, but reuse the saved row location.
  - getCurrentRow
```
public ExecRow getCurrentRow()
                      throws StandardException
```
    Gets last row returned.
    
    Specified by:
    
    getCurrentRow in interface CursorResultSet
    
    Returns:
    
    the last row returned.
    
    Throws:
    
    StandardException - thrown on failure.
    
    See Also:
    
    CursorResultSet
  - isForUpdate
```
public boolean isForUpdate()
```
    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.
    
    Specified by:
    
    isForUpdate in interface NoPutResultSet
    
    Overrides:
    
    isForUpdate in class NoPutResultSetImpl
    
    Returns:
    
    Whether or not the result set is for update.

Class IndexRowToBaseRowResultSet

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

Field Summary

Fields inherited from class org.apache.derby.impl.sql.execute.NoPutResultSetImpl

Fields inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

Fields inherited from interface org.apache.derby.iapi.sql.execute.NoPutResultSet

Fields inherited from interface org.apache.derby.iapi.sql.ResultSet

Constructor Summary

Method Summary

Methods inherited from class org.apache.derby.impl.sql.execute.NoPutResultSetImpl

Methods inherited from class org.apache.derby.impl.sql.execute.BasicNoPutResultSetImpl

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.derby.iapi.sql.ResultSet

Field Detail

source

restriction

accessedHeapCols

accessedAllCols

indexName

indexCols

dcoci

scoci

baseCC

closeBaseCCHere

forUpdate

rowArray

baseRowLocation

copiedFromSource

restrictionTime

_baseColumnCount

_includeRowLocation

_heapColsWithoutRowLocation

Constructor Detail

IndexRowToBaseRowResultSet

Method Detail

openCore

reopenCore

getNextRowCore

close

getTimeSpent

getRowLocation

positionScanAtRowLocation

getCurrentRow

isForUpdate