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org.apache.derby.impl.sql.execute
Class DependentResultSet  

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

All Implemented Interfaces:

org.apache.derby.iapi.sql.execute.CursorResultSet, org.apache.derby.iapi.sql.execute.NoPutResultSet, org.apache.derby.iapi.sql.ResultSet, org.apache.derby.iapi.store.access.RowLocationRetRowSource, org.apache.derby.iapi.store.access.RowSource

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public class DependentResultSet

extends NoPutResultSetImpl

implements org.apache.derby.iapi.sql.execute.CursorResultSet

DependentResultSet should be used by only ON DELETE CASCADE/ON DELETE SET NULL ref actions implementation to gather the rows from the dependent tables. Idea is to scan the foreign key index for the rows in the source table matelized temporary result set. Scanning of foreign key index gives us the rows that needs to be deleted on dependent tables. Using the row location we got from the index , base row is fetched.

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Field Summary
protected  org.apache.derby.iapi.services.io.FormatableBitSet	accessedCols
protected  org.apache.derby.iapi.sql.Activation	activation
(package private)  org.apache.derby.iapi.types.RowLocation	baseRowLocation
long	beginTime
protected  org.apache.derby.iapi.sql.execute.ExecRow	candidate
(package private)  org.apache.derby.iapi.services.loader.GeneratedMethod	checkGM
protected  int[]	checkNullCols
protected  org.apache.derby.iapi.sql.execute.ExecRow	clonedExecRow
protected  org.apache.derby.iapi.services.loader.GeneratedMethod	closeCleanup
long	closeTime
protected  int	cncLen
boolean	coarserLock
(package private)  org.apache.derby.iapi.sql.execute.ExecRow	compactRow
protected  long	conglomId
long	constructorTime
protected  org.apache.derby.iapi.sql.execute.ExecRow	currentRow
(package private)  boolean	deferred
protected  long	endExecutionTime
private  long	estimatedRowCount
protected  boolean	finished
protected  boolean	firstScan
(package private)  int[]	fkColArray
boolean	forUpdate
(package private)  org.apache.derby.iapi.store.access.ConglomerateController	heapCC
(package private)  long	heapConglomerate
protected  org.apache.derby.iapi.store.access.DynamicCompiledOpenConglomInfo	heapDcoci
protected  org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo	heapScoci
protected  java.lang.String	indent
(package private)  org.apache.derby.iapi.store.access.DynamicCompiledOpenConglomInfo	indexDcoci
java.lang.String	indexName
(package private)  IndexRow	indexQualifierRow
(package private)  org.apache.derby.iapi.sql.execute.ExecRow	indexRow
(package private)  org.apache.derby.iapi.store.access.ScanController	indexSC
(package private)  org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo	indexScoci
boolean	isConstraint
protected  boolean	isKeyed
int	isolationLevel
(package private)  boolean	isOpen
protected  boolean	isTopResultSet
protected  org.apache.derby.iapi.sql.conn.LanguageConnectionContext	lcc
int	lockMode
private  boolean	nextDone
long	nextTime
(package private)  int	numFkColumns
int	numOpens
boolean	oneRowScan
long	openTime
double	optimizerEstimatedCost
double	optimizerEstimatedRowCount
(package private)  java.lang.String	parentResultSetId
protected  org.apache.derby.iapi.store.access.Qualifier[][]	qualifiers
(package private)  org.apache.derby.iapi.sql.ResultDescription	resultDescription
protected  org.apache.derby.iapi.services.loader.GeneratedMethod	resultRowAllocator
int	resultSetNumber
(package private)  org.apache.derby.iapi.types.RowLocation	rowLocation
int	rowsFiltered
int	rowsPerRead
int	rowsSeen
protected  long	rowsThisScan
protected  boolean	runTimeStatisticsOn
private  boolean	sameStartStopPosition
(package private)  int	sArrayIndex
protected  org.apache.derby.iapi.store.access.ScanController	scanController
protected  boolean	scanControllerOpened
private  java.util.Properties	scanProperties
(package private)  org.apache.derby.iapi.sql.execute.ExecRow	searchRow
(package private)  TemporaryRowHolderResultSet	source
protected  int	sourceDepth
(package private)  int[]	sourceOpened
(package private)  TemporaryRowHolderResultSet[]	sourceResultSets
(package private)  org.apache.derby.iapi.sql.execute.TemporaryRowHolder[]	sourceRowHolders
protected  long	startExecutionTime
protected  org.apache.derby.iapi.services.loader.GeneratedMethod	startKeyGetter
protected  org.apache.derby.iapi.sql.execute.ExecIndexRow	startPosition
java.lang.String	startPositionString
protected  int	startSearchOperator
protected  org.apache.derby.iapi.services.loader.GeneratedMethod	stopKeyGetter
protected  org.apache.derby.iapi.sql.execute.ExecIndexRow	stopPosition
java.lang.String	stopPositionString
protected  int	stopSearchOperator
protected  java.lang.String	subIndent
org.apache.derby.iapi.sql.execute.NoPutResultSet[]	subqueryTrackingArray
(package private)  java.util.Vector	sVector
java.lang.String	tableName
protected  org.apache.derby.iapi.sql.execute.TargetResultSet	targetResultSet
(package private)  org.apache.derby.iapi.store.access.TransactionController	tc

 

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

CURRENT_RESULTSET_ONLY, ENTIRE_RESULTSET_TREE, ISAFTERLAST, ISBEFOREFIRST, ISFIRST, ISLAST

 

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

ABSOLUTE, FIRST, LAST, NEXT, PREVIOUS, RELATIVE

 

Constructor Summary

DependentResultSet(long conglomId, org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo scoci, org.apache.derby.iapi.sql.Activation activation, org.apache.derby.iapi.services.loader.GeneratedMethod resultRowAllocator, int resultSetNumber, org.apache.derby.iapi.services.loader.GeneratedMethod startKeyGetter, int startSearchOperator, org.apache.derby.iapi.services.loader.GeneratedMethod stopKeyGetter, int stopSearchOperator, boolean sameStartStopPosition, org.apache.derby.iapi.store.access.Qualifier[][] qualifiers, java.lang.String tableName, java.lang.String indexName, boolean isConstraint, boolean forUpdate, int colRefItem, int lockMode, boolean tableLocked, int isolationLevel, int rowsPerRead, boolean oneRowScan, double optimizerEstimatedRowCount, double optimizerEstimatedCost, org.apache.derby.iapi.services.loader.GeneratedMethod closeCleanup, java.lang.String parentResultSetId, long fkIndexConglomId, int fkColArrayItem, int rltItem)

 

Method Summary
private  void	addNewSources()
protected  void	addWarning(java.sql.SQLWarning w)
protected  void	attachStatementContext()           Attach this result set to the top statement context on the stack.
private  boolean	canGetInstantaneousLocks()           Can we get instantaneous locks when getting share row locks at READ COMMITTED.
boolean	checkRowPosition(int isType)           Determine if the cursor is before the first row in the result set.
void	cleanUp()           Clean up on error
void	clearCurrentRow()           Clear the current row
protected  void	clearOrderableCache(org.apache.derby.iapi.store.access.Qualifier[][] qualifiers)           Clear the Orderable cache for each qualifier.
void	close()           Close the all the opens we did in this result set.
void	closeRowSource()           closeRowSource tells the RowSource that it will no longer need to return any rows and it can release any resource it may have.
protected  java.lang.String	dumpTimeStats(java.lang.String indent, java.lang.String subIndent)           Dump out the time information for run time stats.
private  org.apache.derby.iapi.sql.execute.ExecRow	fetchBaseRow()           Fetch the base row corresponding to the current index row
private  org.apache.derby.iapi.sql.execute.ExecRow	fetchIndexRow()           Fetch a row from the index scan.
void	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().
protected  void	finishAndRTS()
org.apache.derby.iapi.sql.execute.ExecRow	getAbsoluteRow(int row)           Returns the row at the absolute position from the query, and returns NULL when there is no such position.
org.apache.derby.iapi.sql.ResultSet	getAutoGeneratedKeysResultset()           ResultSet for rows inserted into the table (contains auto-generated keys columns only)
java.sql.Timestamp	getBeginExecutionTimestamp()           Get the Timestamp for the beginning of execution.
protected  org.apache.derby.iapi.sql.execute.ExecRow	getCompactRow(org.apache.derby.iapi.sql.execute.ExecRow candidate, org.apache.derby.iapi.services.io.FormatableBitSet accessedCols, org.apache.derby.iapi.services.io.FormatableBitSet otherCols, boolean isKeyed)           Get a compacted version of the candidate row according to the columns specified in the bit map.
org.apache.derby.iapi.sql.execute.ExecRow	getCurrentRow()           Returns the current row of the result set.
protected  long	getCurrentTimeMillis()           Return the current time in milliseconds, if DEBUG and RunTimeStats is on, else return 0.
java.lang.String	getCursorName()           Return my cursor name for JDBC.
protected  long	getElapsedMillis(long beginTime)           Return the elapsed time in milliseconds, between now and the beginTime, if DEBUG and RunTimeStats is on, else return 0.
java.sql.Timestamp	getEndExecutionTimestamp()           Get the Timestamp for the end of execution.
double	getEstimatedRowCount()           Get the estimated row count from this result set.
long	getExecuteTime()           Get the execution time in milliseconds.
(package private)  org.apache.derby.iapi.sql.execute.ExecutionFactory	getExecutionFactory()           Get a execution factory
org.apache.derby.iapi.sql.execute.ExecRow	getFirstRow()           Returns the first row from the query, and returns NULL when there are no rows.
protected  org.apache.derby.iapi.sql.conn.LanguageConnectionContext	getLanguageConnectionContext()           Cache the language connection context.
org.apache.derby.iapi.sql.execute.ExecRow	getLastRow()           Returns the last row from the query, and returns NULL when there are no rows.
private  org.apache.derby.iapi.sql.execute.ExecRow	getNextParentRow()
org.apache.derby.iapi.sql.execute.ExecRow	getNextRow()           Return the requested values computed from the next row (if any) for which the restriction evaluates to true.
org.apache.derby.iapi.sql.execute.ExecRow	getNextRowCore()           Return the requested values computed from the next row (if any) for which the restriction evaluates to true.
org.apache.derby.iapi.types.DataValueDescriptor[]	getNextRowFromRowSource()           Get the next row as an array of column objects.
int	getPointOfAttachment()           Return the point of attachment for this subquery.
org.apache.derby.iapi.sql.execute.ExecRow	getPreviousRow()           Returns the previous row from the query, and returns NULL when there are no more previous rows.
org.apache.derby.iapi.sql.execute.ExecRow	getRelativeRow(int row)           Returns the row at the relative position from the current cursor position, and returns NULL when there is no such position.
org.apache.derby.iapi.sql.ResultDescription	getResultDescription()           Returns the description of the table's rows
org.apache.derby.iapi.types.RowLocation	getRowLocation()           Returns the row location of the current base table row of the cursor.
int	getRowNumber()           Returns the row number of the current row.
int	getScanIsolationLevel()           Return the isolation level of the scan in the result set.
java.util.Properties	getScanProperties()
org.apache.derby.iapi.sql.execute.NoPutResultSet[]	getSubqueryTrackingArray(int numSubqueries)           Get the subquery ResultSet tracking array from the top ResultSet.
long	getTimeSpent(int type)           Return the total amount of time spent in this ResultSet
(package private)  org.apache.derby.iapi.store.access.TransactionController	getTransactionController()           Get the current transaction controller.
org.apache.derby.iapi.services.io.FormatableBitSet	getValidColumns()           getValidColumns describes the DataValueDescriptor[] returned by all calls to the getNextRowFromRowSource() call.
java.sql.SQLWarning	getWarnings()           Return the set of warnings generated during the execution of this result set.
boolean	isClosed()           Report if closed.
boolean	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
void	markAsTopResultSet()           Mark the ResultSet as the topmost one in the ResultSet tree.
int	modifiedRowCount()           Returns the number of rows affected by the statement.
boolean	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.
boolean	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.
void	open()           open a scan on the table.
void	openCore()           open a scan on the table.
org.apache.derby.iapi.store.access.ConglomerateController	openHeapConglomerateController()
private  void	openIndexScan(org.apache.derby.iapi.sql.execute.ExecRow searchRow)
private  org.apache.derby.iapi.store.access.ScanController	openIndexScanController(org.apache.derby.iapi.sql.execute.ExecRow searchRow)           Get a scan controller positioned using searchRow as the start/stop position.
private  java.lang.String	printPosition(int searchOperator, org.apache.derby.iapi.sql.execute.ExecIndexRow positioner)           Return a start or stop positioner as a String.
java.lang.String	printQualifiers()           Return an array of Qualifiers as a String
static java.lang.String	printQualifiers(org.apache.derby.iapi.store.access.Qualifier[][] qualifiers)           Return a 2-d array of Qualifiers as a String
java.lang.String	printStartPosition()
java.lang.String	printStopPosition()
void	reopenCore()           This is the default implementation of reopenCore().
private  void	reopenIndexScanController(org.apache.derby.iapi.sql.execute.ExecRow searchRow)
boolean	requiresRelocking()           Do we need to relock the row when going to the heap.
int	resultSetNumber()           Get the number of this ResultSet, which is guaranteed to be unique within a statement.
boolean	returnsRows()           Returns true.
void	rowLocation(org.apache.derby.iapi.types.RowLocation rl)           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.
org.apache.derby.iapi.sql.execute.ExecRow	setAfterLastRow()           Sets the current position to after the last row and returns NULL because there is no current row.
org.apache.derby.iapi.sql.execute.ExecRow	setBeforeFirstRow()           Sets the current position to before the first row and returns NULL because there is no current row.
protected  void	setCheckConstraints(org.apache.derby.iapi.services.loader.GeneratedMethod checkGM)           Set the GeneratedMethod for enforcing check constraints
protected  org.apache.derby.iapi.sql.execute.ExecRow	setCompactRow(org.apache.derby.iapi.sql.execute.ExecRow candidateRow, org.apache.derby.iapi.sql.execute.ExecRow compactRow)           Copy columns from the candidate row from the store to the given compact row.
protected  void	setCompatRow(org.apache.derby.iapi.sql.execute.ExecRow compactRow, java.lang.Object[] sourceRow)
void	setCurrentRow(org.apache.derby.iapi.sql.execute.ExecRow row)           Set the current row to the row passed in.
protected  void	setHeapConglomerate(long heapConglomerate)           Set the heap conglomerate number (used in enforcing check constraints)
void	setNeedsRowLocation(boolean needsRowLocation)           Set whether or not the NPRS need the row location when acting as a row source.
void	setTargetResultSet(org.apache.derby.iapi.sql.execute.TargetResultSet trs)           Notify a NPRS that it is the source for the specified TargetResultSet.
private  void	setupQualifierRow(org.apache.derby.iapi.sql.execute.ExecRow searchRow)
protected  boolean	skipRow(org.apache.derby.iapi.sql.execute.ExecRow row)           Return true if we should skip the scan due to nulls in the row when the start or stop positioners on the columns containing null do not implement ordered null semantics.
protected  boolean	skipScan(org.apache.derby.iapi.sql.execute.ExecIndexRow startPosition, org.apache.derby.iapi.sql.execute.ExecIndexRow stopPosition)           Return true if we should skip the scan due to nulls in the start or stop position when the predicate on the column(s) in question do not implement ordered null semantics.

 

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

checkRowPosition, cleanUp, getAbsoluteRow, getAutoGeneratedKeysResultset, getBeginExecutionTimestamp, getCursorName, getEndExecutionTimestamp, getExecuteTime, getFirstRow, getLastRow, getNextRow, getPreviousRow, getRelativeRow, getResultDescription, getRowNumber, getSubqueryTrackingArray, getWarnings, isClosed, modifiedRowCount, open, returnsRows, setAfterLastRow, setBeforeFirstRow

 

Field Detail

heapCC

org.apache.derby.iapi.store.access.ConglomerateController heapCC

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baseRowLocation

org.apache.derby.iapi.types.RowLocation baseRowLocation

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indexRow

org.apache.derby.iapi.sql.execute.ExecRow indexRow

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indexQualifierRow

IndexRow indexQualifierRow

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indexSC

org.apache.derby.iapi.store.access.ScanController indexSC

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indexScoci

org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo indexScoci

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indexDcoci

org.apache.derby.iapi.store.access.DynamicCompiledOpenConglomInfo indexDcoci

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numFkColumns

int numFkColumns

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isOpen

boolean isOpen

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deferred

boolean deferred

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source

TemporaryRowHolderResultSet source

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tc

org.apache.derby.iapi.store.access.TransactionController tc

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parentResultSetId

java.lang.String parentResultSetId

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fkColArray

int[] fkColArray

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rowLocation

org.apache.derby.iapi.types.RowLocation rowLocation

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sourceRowHolders

org.apache.derby.iapi.sql.execute.TemporaryRowHolder[] sourceRowHolders

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sourceResultSets

TemporaryRowHolderResultSet[] sourceResultSets

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sourceOpened

int[] sourceOpened

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sArrayIndex

int sArrayIndex

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sVector

java.util.Vector sVector

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scanController

protected org.apache.derby.iapi.store.access.ScanController scanController

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scanControllerOpened

protected boolean scanControllerOpened

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isKeyed

protected boolean isKeyed

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firstScan

protected boolean firstScan

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startPosition

protected org.apache.derby.iapi.sql.execute.ExecIndexRow startPosition

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stopPosition

protected org.apache.derby.iapi.sql.execute.ExecIndexRow stopPosition

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candidate

protected org.apache.derby.iapi.sql.execute.ExecRow candidate

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conglomId

protected long conglomId

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heapDcoci

protected org.apache.derby.iapi.store.access.DynamicCompiledOpenConglomInfo heapDcoci

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heapScoci

protected org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo heapScoci

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resultRowAllocator

protected org.apache.derby.iapi.services.loader.GeneratedMethod resultRowAllocator

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startKeyGetter

protected org.apache.derby.iapi.services.loader.GeneratedMethod startKeyGetter

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startSearchOperator

protected int startSearchOperator

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stopKeyGetter

protected org.apache.derby.iapi.services.loader.GeneratedMethod stopKeyGetter

---

stopSearchOperator

protected int stopSearchOperator

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qualifiers

protected org.apache.derby.iapi.store.access.Qualifier[][] qualifiers

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closeCleanup

protected org.apache.derby.iapi.services.loader.GeneratedMethod closeCleanup

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tableName

public java.lang.String tableName

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indexName

public java.lang.String indexName

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runTimeStatisticsOn

protected boolean runTimeStatisticsOn

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accessedCols

protected org.apache.derby.iapi.services.io.FormatableBitSet accessedCols

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rowsPerRead

public int rowsPerRead

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forUpdate

public boolean forUpdate

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sameStartStopPosition

private boolean sameStartStopPosition

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nextDone

private boolean nextDone

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isolationLevel

public int isolationLevel

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lockMode

public int lockMode

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scanProperties

private java.util.Properties scanProperties

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startPositionString

public java.lang.String startPositionString

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stopPositionString

public java.lang.String stopPositionString

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isConstraint

public boolean isConstraint

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coarserLock

public boolean coarserLock

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oneRowScan

public boolean oneRowScan

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rowsThisScan

protected long rowsThisScan

---

estimatedRowCount

private long estimatedRowCount

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searchRow

org.apache.derby.iapi.sql.execute.ExecRow searchRow

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resultSetNumber

public final int resultSetNumber

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indent

protected java.lang.String indent

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subIndent

protected java.lang.String subIndent

---

sourceDepth

protected int sourceDepth

---

clonedExecRow

protected org.apache.derby.iapi.sql.execute.ExecRow clonedExecRow

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checkGM

org.apache.derby.iapi.services.loader.GeneratedMethod checkGM

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heapConglomerate

long heapConglomerate

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targetResultSet

protected org.apache.derby.iapi.sql.execute.TargetResultSet targetResultSet

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checkNullCols

protected int[] checkNullCols

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cncLen

protected int cncLen

---

finished

protected boolean finished

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currentRow

protected org.apache.derby.iapi.sql.execute.ExecRow currentRow

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isTopResultSet

protected boolean isTopResultSet

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lcc

protected org.apache.derby.iapi.sql.conn.LanguageConnectionContext lcc

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numOpens

public int numOpens

---

rowsSeen

public int rowsSeen

---

rowsFiltered

public int rowsFiltered

---

startExecutionTime

protected long startExecutionTime

---

endExecutionTime

protected long endExecutionTime

---

beginTime

public long beginTime

---

constructorTime

public long constructorTime

---

openTime

public long openTime

---

nextTime

public long nextTime

---

closeTime

public long closeTime

---

optimizerEstimatedRowCount

public double optimizerEstimatedRowCount

---

optimizerEstimatedCost

public double optimizerEstimatedCost

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subqueryTrackingArray

public org.apache.derby.iapi.sql.execute.NoPutResultSet[] subqueryTrackingArray

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compactRow

org.apache.derby.iapi.sql.execute.ExecRow compactRow

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activation

protected org.apache.derby.iapi.sql.Activation activation

---

resultDescription

org.apache.derby.iapi.sql.ResultDescription resultDescription

Constructor Detail

DependentResultSet

public DependentResultSet(long conglomId,
                          org.apache.derby.iapi.store.access.StaticCompiledOpenConglomInfo scoci,
                          org.apache.derby.iapi.sql.Activation activation,
                          org.apache.derby.iapi.services.loader.GeneratedMethod resultRowAllocator,
                          int resultSetNumber,
                          org.apache.derby.iapi.services.loader.GeneratedMethod startKeyGetter,
                          int startSearchOperator,
                          org.apache.derby.iapi.services.loader.GeneratedMethod stopKeyGetter,
                          int stopSearchOperator,
                          boolean sameStartStopPosition,
                          org.apache.derby.iapi.store.access.Qualifier[][] qualifiers,
                          java.lang.String tableName,
                          java.lang.String indexName,
                          boolean isConstraint,
                          boolean forUpdate,
                          int colRefItem,
                          int lockMode,
                          boolean tableLocked,
                          int isolationLevel,
                          int rowsPerRead,
                          boolean oneRowScan,
                          double optimizerEstimatedRowCount,
                          double optimizerEstimatedCost,
                          org.apache.derby.iapi.services.loader.GeneratedMethod closeCleanup,
                          java.lang.String parentResultSetId,
                          long fkIndexConglomId,
                          int fkColArrayItem,
                          int rltItem)
                   throws org.apache.derby.iapi.error.StandardException

Method Detail

openIndexScanController

private org.apache.derby.iapi.store.access.ScanController openIndexScanController(org.apache.derby.iapi.sql.execute.ExecRow searchRow)
                                                                           throws org.apache.derby.iapi.error.StandardException

Get a scan controller positioned using searchRow as the start/stop position. The assumption is that searchRow is of the same format as the index being opened.

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reopenIndexScanController

private void reopenIndexScanController(org.apache.derby.iapi.sql.execute.ExecRow searchRow)
                                throws org.apache.derby.iapi.error.StandardException

---

setupQualifierRow

private void setupQualifierRow(org.apache.derby.iapi.sql.execute.ExecRow searchRow)

---

openIndexScan

private void openIndexScan(org.apache.derby.iapi.sql.execute.ExecRow searchRow)
                    throws org.apache.derby.iapi.error.StandardException

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fetchIndexRow

private org.apache.derby.iapi.sql.execute.ExecRow fetchIndexRow()
                                                         throws org.apache.derby.iapi.error.StandardException

Fetch a row from the index scan.

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fetchBaseRow

private org.apache.derby.iapi.sql.execute.ExecRow fetchBaseRow()
                                                        throws org.apache.derby.iapi.error.StandardException

Fetch the base row corresponding to the current index row

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getNextRowCore

public org.apache.derby.iapi.sql.execute.ExecRow getNextRowCore()
                                                         throws org.apache.derby.iapi.error.StandardException

Description copied from interface: org.apache.derby.iapi.sql.execute.NoPutResultSet

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 org.apache.derby.iapi.sql.execute.NoPutResultSet

Specified by:

getNextRowCore in class BasicNoPutResultSetImpl

---

getNextParentRow

private org.apache.derby.iapi.sql.execute.ExecRow getNextParentRow()
                                                            throws org.apache.derby.iapi.error.StandardException

---

openHeapConglomerateController

public org.apache.derby.iapi.store.access.ConglomerateController openHeapConglomerateController()
                                                                                         throws org.apache.derby.iapi.error.StandardException

---

close

public void close()
           throws org.apache.derby.iapi.error.StandardException

Close the all the opens we did in this result set.

Specified by:

close in interface org.apache.derby.iapi.sql.ResultSet

Overrides:

close in class NoPutResultSetImpl

---

finish

public void finish()
            throws org.apache.derby.iapi.error.StandardException

Description copied from interface: org.apache.derby.iapi.sql.ResultSet

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(). Will close the result set if it is not already closed.

Specified by:

finish in interface org.apache.derby.iapi.sql.ResultSet

Overrides:

finish in class BasicNoPutResultSetImpl

---

openCore

public void openCore()
              throws org.apache.derby.iapi.error.StandardException

Description copied from interface: org.apache.derby.iapi.sql.execute.NoPutResultSet

open a scan on the table. scan parameters are evaluated at each open, so there is probably some way of altering their values...

openCore() can only be called on a closed result set. see reopenCore if you want to reuse an open result set.

Specified by:

openCore in interface org.apache.derby.iapi.sql.execute.NoPutResultSet

Specified by:

openCore in class BasicNoPutResultSetImpl

---

addNewSources

private void addNewSources()

---

canGetInstantaneousLocks

private boolean canGetInstantaneousLocks()

Can we get instantaneous locks when getting share row locks at READ COMMITTED.

---

getTimeSpent

public long getTimeSpent(int type)

Description copied from interface: org.apache.derby.iapi.sql.ResultSet

Return the total amount of time spent in this ResultSet

Specified by:

getTimeSpent in interface org.apache.derby.iapi.sql.ResultSet

---

getRowLocation

public org.apache.derby.iapi.types.RowLocation getRowLocation()
                                                       throws org.apache.derby.iapi.error.StandardException

Description copied from interface: org.apache.derby.iapi.sql.execute.CursorResultSet

Returns the row location of the current base table row of the cursor. If this cursor's row is composed of multiple base tables' rows, i.e. due to a join, then a null is returned.

Specified by:

getRowLocation in interface org.apache.derby.iapi.sql.execute.CursorResultSet

---

getCurrentRow

public org.apache.derby.iapi.sql.execute.ExecRow getCurrentRow()
                                                        throws org.apache.derby.iapi.error.StandardException

Description copied from interface: org.apache.derby.iapi.sql.execute.CursorResultSet

Returns the current row of the result set. REMIND: eventually, this will only return the current row for result sets that need to return it; either some field in the activation or a parameter in the constructor will be used to signal that this needs to function. This will let us limit the number of live objects we are holding on to.

Specified by:

getCurrentRow in interface org.apache.derby.iapi.sql.execute.CursorResultSet

---

getScanProperties

public java.util.Properties getScanProperties()

---

printStartPosition

public java.lang.String printStartPosition()

---

printStopPosition

public java.lang.String printStopPosition()

---

printPosition

private java.lang.String printPosition(int searchOperator,
                                       org.apache.derby.iapi.sql.execute.ExecIndexRow positioner)

Return a start or stop positioner as a String. If we already generated the information, then use that. Otherwise, invoke the activation to get it.

---

printQualifiers

public java.lang.String printQualifiers()

Return an array of Qualifiers as a String

---

getResultDescription

public org.apache.derby.iapi.sql.ResultDescription getResultDescription()

Returns the description of the table's rows

Specified by:

getResultDescription in interface org.apache.derby.iapi.sql.ResultSet

Overrides:

getResultDescription in class BasicNoPutResultSetImpl

---

getCursorName

public