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

Modifier and Type	Field and Description
pack-priv final Activation	activation
protected long	beginExecutionTime
protected long	beginTime
protected long	endExecutionTime
protected long	endTime
private int	firstColumn
private int[]	generatedColumnPositions
private boolean	isOpen True if the result set has been opened, and not yet closed.
pack-priv final LanguageConnectionContext	lcc
private DataValueDescriptor[]	normalizedGeneratedValues
private final boolean	statisticsTimingOn
private NoPutResultSet[]	subqueryTrackingArray

Access	Constructor and Description
pack-priv	NoRowsResultSetImpl(Activation activation)

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 final 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 final void	clearCurrentRow() Implements org.apache.derby.iapi.sql.ResultSet.clearCurrentRow. Clear the current row.
public void	close(boolean True if this is part of an action of a MERGE statement. underMerge) Dump the stat if not already done so.
public boolean	Returns: Whether or not this ResultSet cause a commit or rollback. doesCommit() Does this ResultSet cause a commit or rollback.
public void	evaluateGenerationClauses(GeneratedMethod the generated method which evaluates generation clauses generationClauses, Activation the thread-specific instance of the generated class activation, NoPutResultSet the tuple stream driving this INSERT/UPDATE source, ExecRow the base row being stuffed newRow, boolean true if this is an UPDATE. false otherwise. isUpdate) Compute the generation clauses on the current row in order to fill in computed columns.
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 final 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	getActivation() Implements org.apache.derby.iapi.sql.ResultSet.getActivation.
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.
protected final long	Returns: long Current time in milliseconds. getCurrentTimeMillis() Return the current time in milliseconds, if DEBUG and RunTimeStats is on, else return 0.
public String	getCursorName() Implements org.apache.derby.iapi.sql.ResultSet.getCursorName. Return the cursor name, null in this case.
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 long	Returns: long The execution time in milliseconds. getExecuteTime() Implements org.apache.derby.iapi.sql.ResultSet.getExecuteTime. Get the execution time in milliseconds.
public final 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 final 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 final ExecRow	getNextRow() Implements org.apache.derby.iapi.sql.ResultSet.getNextRow. No rows to return, so throw an exception.
public final 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 String	Returns: String The query plan as a String. getQueryPlanText(int Indentation level. depth) RESOLVE - This method will go away once it is overloaded in all subclasses.
public final 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	getResultDescription() Implements org.apache.derby.iapi.sql.ResultSet.getResultDescription. Returns null.
public final 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 final NoPutResultSet[]	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 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 closed, `false` otherwise isClosed() Implements org.apache.derby.iapi.sql.ResultSet.isClosed. Find out if the `ResultSet` is closed.
public long	modifiedRowCount() Implements org.apache.derby.iapi.sql.ResultSet.modifiedRowCount. Returns zero.
public final boolean	returnsRows() Implements org.apache.derby.iapi.sql.ResultSet.returnsRows. Returns FALSE
public final 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 final 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.
pack-priv void	setup() Set up the result set for use.
private void	setupGeneratedColumns(Activation activation, ValueRow newRow) Construct support for normalizing generated columns.
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.

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

activation	back to summary
pack-priv final Activation activation

beginExecutionTime	back to summary
protected long beginExecutionTime

beginTime	back to summary
protected long beginTime

endExecutionTime	back to summary
protected long endExecutionTime

endTime	back to summary
protected long endTime

firstColumn	back to summary
private int firstColumn

generatedColumnPositions	back to summary
private int[] generatedColumnPositions

isOpen	back to summary
private boolean isOpen True if the result set has been opened, and not yet closed.

lcc	back to summary
pack-priv final LanguageConnectionContext lcc

normalizedGeneratedValues	back to summary
private DataValueDescriptor[] normalizedGeneratedValues

statisticsTimingOn	back to summary
private final boolean statisticsTimingOn

subqueryTrackingArray	back to summary
private NoPutResultSet[] subqueryTrackingArray

NoRowsResultSetImpl	back to summary
pack-priv NoRowsResultSetImpl(Activation activation)

Method Detail

addWarning	back to summary
public void addWarning(SQLWarning w) Implements org.apache.derby.iapi.sql.ResultSet.addWarning. Doc from org.apache.derby.iapi.sql.ResultSet.addWarning. Add a warning to this result set. Parameters w:SQLWarning the warning to add

addWarning

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public void addWarning(SQLWarning w)

Implements org.apache.derby.iapi.sql.ResultSet.addWarning.

Doc from org.apache.derby.iapi.sql.ResultSet.addWarning.

Add a warning to this result set.

Parameters

w:SQLWarning: the warning to add

checkRowPosition	back to summary
public final boolean checkRowPosition(int isType) Implements org.apache.derby.iapi.sql.ResultSet.checkRowPosition. Determine if the cursor is before the first row in the result set. Parameters isType:int Doc from org.apache.derby.iapi.sql.ResultSet.checkRowPosition. The desired position type Returns:boolean true if before the first row, false otherwise. Returns false when the result set contains no rows.

checkRowPosition

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public final boolean checkRowPosition(int isType)

Implements org.apache.derby.iapi.sql.ResultSet.checkRowPosition.

Determine if the cursor is before the first row in the result set.

Parameters

isType:int

Doc from org.apache.derby.iapi.sql.ResultSet.checkRowPosition.

The desired position type

Returns:boolean

true if before the first row, false otherwise. Returns false when the result set contains no rows.

clearCurrentRow	back to summary
public final void clearCurrentRow() Implements org.apache.derby.iapi.sql.ResultSet.clearCurrentRow. Clear the current row. This is done after a commit on holdable result sets. This is a no-op on result set which do not provide rows.

clearCurrentRow

back to summary

public final void clearCurrentRow()

Implements org.apache.derby.iapi.sql.ResultSet.clearCurrentRow.

Clear the current row. This is done after a commit on holdable result sets. This is a no-op on result set which do not provide rows.

close	back to summary
public void close(boolean underMerge) throws StandardException Dump the stat if not already done so. Close all of the open subqueries. Parameters underMerge:boolean True if this is part of an action of a MERGE statement. Exceptions StandardException: thrown on error

back to summary

public void close(boolean underMerge) throws StandardException

Dump the stat if not already done so. Close all of the open subqueries.

Parameters

underMerge:boolean: True if this is part of an action of a MERGE statement.

Exceptions

StandardException:: thrown on error

doesCommit	back to summary
public boolean doesCommit() Does this ResultSet cause a commit or rollback. Returns:boolean Whether or not this ResultSet cause a commit or rollback.

doesCommit

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public boolean doesCommit()

Does this ResultSet cause a commit or rollback.

Returns:boolean: Whether or not this ResultSet cause a commit or rollback.

evaluateGenerationClauses	back to summary
public void evaluateGenerationClauses(GeneratedMethod generationClauses, Activation activation, NoPutResultSet source, ExecRow newRow, boolean isUpdate) throws StandardException Compute the generation clauses on the current row in order to fill in computed columns. Parameters generationClauses:GeneratedMethod the generated method which evaluates generation clauses activation:Activation the thread-specific instance of the generated class source:NoPutResultSet the tuple stream driving this INSERT/UPDATE newRow:ExecRow the base row being stuffed isUpdate:boolean true if this is an UPDATE. false otherwise.

evaluateGenerationClauses

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public void evaluateGenerationClauses(GeneratedMethod generationClauses, Activation activation, NoPutResultSet source, ExecRow newRow, boolean isUpdate) throws StandardException

Compute the generation clauses on the current row in order to fill in computed columns.

Parameters

generationClauses:GeneratedMethod: the generated method which evaluates generation clauses
activation:Activation: the thread-specific instance of the generated class
source:NoPutResultSet: the tuple stream driving this INSERT/UPDATE
newRow:ExecRow: the base row being stuffed
isUpdate:boolean: true if this is an UPDATE. false otherwise.

finish	back to summary
public void finish() throws StandardException Implements org.apache.derby.iapi.sql.ResultSet.finish. Doc from 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(). Will close the result set if it is not already closed. Exceptions StandardException: on error

finish

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public void finish() throws StandardException

Implements org.apache.derby.iapi.sql.ResultSet.finish.

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

Exceptions

StandardException:: on error

getAbsoluteRow back to summary

getAbsoluteRow	back to summary
public final ExecRow getAbsoluteRow(int row) throws StandardException 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. (Negative position means from the end of the result set.) Moving the cursor to an invalid position leaves the cursor positioned either before the first row (negative position) or after the last row (positive position). Note An exception will be thrown on 0. Parameters row:int The position. Returns:ExecRow The row at the absolute position, or NULL if no such position. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow getAbsoluteRow(int row) throws StandardException

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. (Negative position means from the end of the result set.) Moving the cursor to an invalid position leaves the cursor positioned either before the first row (negative position) or after the last row (positive position).

Note

An exception will be thrown on 0.

Parameters

row:int: The position.

Returns:ExecRow

The row at the absolute position, or NULL if no such position.

Exceptions

StandardException:: Thrown on failure

See Also

Row

getActivation	back to summary
public final Activation getActivation() Implements org.apache.derby.iapi.sql.ResultSet.getActivation.

getAutoGeneratedKeysResultset back to summary

getAutoGeneratedKeysResultset	back to summary
public ResultSet getAutoGeneratedKeysResultset() Implements org.apache.derby.iapi.sql.ResultSet.getAutoGeneratedKeysResultset. Doc from org.apache.derby.iapi.sql.ResultSet.getAutoGeneratedKeysResultset. ResultSet for rows inserted into the table (contains auto-generated keys columns only) Returns:ResultSet NoPutResultSet NoPutResultSets for rows inserted into the table. See Also `ResultSet#getAutoGeneratedKeysResultset`

public ResultSet getAutoGeneratedKeysResultset()

Implements org.apache.derby.iapi.sql.ResultSet.getAutoGeneratedKeysResultset.

Doc from org.apache.derby.iapi.sql.ResultSet.getAutoGeneratedKeysResultset.

ResultSet for rows inserted into the table (contains auto-generated keys columns only)

Returns:ResultSet: NoPutResultSet NoPutResultSets for rows inserted into the table.
See Also: ResultSet#getAutoGeneratedKeysResultset

getBeginExecutionTimestamp	back to summary
public Timestamp getBeginExecutionTimestamp() Implements org.apache.derby.iapi.sql.ResultSet.getBeginExecutionTimestamp. Get the Timestamp for the beginning of execution. Returns:Timestamp Timestamp The Timestamp for the beginning of execution.

getBeginExecutionTimestamp

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public Timestamp getBeginExecutionTimestamp()

Implements org.apache.derby.iapi.sql.ResultSet.getBeginExecutionTimestamp.

Get the Timestamp for the beginning of execution.

Returns:Timestamp: Timestamp The Timestamp for the beginning of execution.

getCurrentTimeMillis	back to summary
protected final long getCurrentTimeMillis() Return the current time in milliseconds, if DEBUG and RunTimeStats is on, else return 0. (Only pay price of system call if need to.) Returns:long long Current time in milliseconds.

getCurrentTimeMillis

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protected final long getCurrentTimeMillis()

Return the current time in milliseconds, if DEBUG and RunTimeStats is on, else return 0. (Only pay price of system call if need to.)

Returns:long: long Current time in milliseconds.

getCursorName back to summary

getCursorName	back to summary
public String getCursorName() Implements org.apache.derby.iapi.sql.ResultSet.getCursorName. Return the cursor name, null in this case. Returns:String Doc from org.apache.derby.iapi.sql.ResultSet.getCursorName. A String with the name of the cursor, if any. Returns NULL if this is not a cursor statement. See Also `ResultSet#getCursorName`

public String getCursorName()

Implements org.apache.derby.iapi.sql.ResultSet.getCursorName.

Return the cursor name, null in this case.

Returns:String

Doc from org.apache.derby.iapi.sql.ResultSet.getCursorName.

A String with the name of the cursor, if any. Returns NULL if this is not a cursor statement.

See Also

ResultSet#getCursorName

getEndExecutionTimestamp	back to summary
public Timestamp getEndExecutionTimestamp() Implements org.apache.derby.iapi.sql.ResultSet.getEndExecutionTimestamp. Get the Timestamp for the end of execution. Returns:Timestamp Timestamp The Timestamp for the end of execution.

getEndExecutionTimestamp

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public Timestamp getEndExecutionTimestamp()

Implements org.apache.derby.iapi.sql.ResultSet.getEndExecutionTimestamp.

Get the Timestamp for the end of execution.

Returns:Timestamp: Timestamp The Timestamp for the end of execution.

getExecuteTime	back to summary
public long getExecuteTime() Implements org.apache.derby.iapi.sql.ResultSet.getExecuteTime. Get the execution time in milliseconds. Returns:long long The execution time in milliseconds.

getExecuteTime

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public long getExecuteTime()

Implements org.apache.derby.iapi.sql.ResultSet.getExecuteTime.

Get the execution time in milliseconds.

Returns:long: long The execution time in milliseconds.

getFirstRow back to summary

getFirstRow	back to summary
public final ExecRow getFirstRow() throws StandardException Implements org.apache.derby.iapi.sql.ResultSet.getFirstRow. Returns the first row from the query, and returns NULL when there are no rows. Returns:ExecRow The first row, or NULL if no rows. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow getFirstRow() throws StandardException

Implements org.apache.derby.iapi.sql.ResultSet.getFirstRow.

Returns the first row from the query, and returns NULL when there are no rows.

Returns:ExecRow

The first row, or NULL if no rows.

Exceptions

StandardException:: Thrown on failure

See Also

Row

getLastRow back to summary

getLastRow	back to summary
public final ExecRow getLastRow() throws StandardException Implements org.apache.derby.iapi.sql.ResultSet.getLastRow. Returns the last row from the query, and returns NULL when there are no rows. Returns:ExecRow The last row, or NULL if no rows. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow getLastRow() throws StandardException

Implements org.apache.derby.iapi.sql.ResultSet.getLastRow.

Returns the last row from the query, and returns NULL when there are no rows.

Returns:ExecRow

The last row, or NULL if no rows.

Exceptions

StandardException:: Thrown on failure

See Also

Row

getNextRow	back to summary
public final ExecRow getNextRow() throws StandardException Implements org.apache.derby.iapi.sql.ResultSet.getNextRow. No rows to return, so throw an exception. Returns:ExecRow Doc from org.apache.derby.iapi.sql.ResultSet.getNextRow. The next row, or NULL if no more rows. Exceptions StandardException: Always throws a StandardException to indicate that this method is not intended to be used.

getNextRow

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public final ExecRow getNextRow() throws StandardException

Implements org.apache.derby.iapi.sql.ResultSet.getNextRow.

No rows to return, so throw an exception.

Returns:ExecRow

Doc from org.apache.derby.iapi.sql.ResultSet.getNextRow.

The next row, or NULL if no more rows.

Exceptions

StandardException:: Always throws a StandardException to indicate that this method is not intended to be used.

getPreviousRow back to summary

getPreviousRow	back to summary
public final ExecRow getPreviousRow() throws StandardException 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. Returns:ExecRow The previous row, or NULL if no more previous rows. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow getPreviousRow() throws StandardException

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.

Returns:ExecRow

The previous row, or NULL if no more previous rows.

Exceptions

StandardException:: Thrown on failure

See Also

Row

getQueryPlanText	back to summary
public String getQueryPlanText(int depth) RESOLVE - This method will go away once it is overloaded in all subclasses. Return the query plan as a String. Parameters depth:int Indentation level. Returns:String String The query plan as a String.

getQueryPlanText

back to summary

public String getQueryPlanText(int depth)

RESOLVE - This method will go away once it is overloaded in all subclasses. Return the query plan as a String.

Parameters

depth:int: Indentation level.

Returns:String

String The query plan as a String.

getRelativeRow back to summary

getRelativeRow	back to summary
public final ExecRow getRelativeRow(int row) throws StandardException 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. (Negative position means toward the beginning of the result set.) Moving the cursor to an invalid position leaves the cursor positioned either before the first row (negative position) or after the last row (positive position). Note 0 is valid. Note An exception is thrown if the cursor is not currently positioned on a row. Parameters row:int The position. Returns:ExecRow The row at the relative position, or NULL if no such position. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow getRelativeRow(int row) throws StandardException

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. (Negative position means toward the beginning of the result set.) Moving the cursor to an invalid position leaves the cursor positioned either before the first row (negative position) or after the last row (positive position).

Note

0 is valid.

Note

An exception is thrown if the cursor is not currently positioned on a row.

Parameters

row:int: The position.

Returns:ExecRow

The row at the relative position, or NULL if no such position.

Exceptions

StandardException:: Thrown on failure

See Also

Row

getResultDescription	back to summary
public ResultDescription getResultDescription() Implements org.apache.derby.iapi.sql.ResultSet.getResultDescription. Returns null. Returns:ResultDescription Doc from org.apache.derby.iapi.sql.ResultSet.getResultDescription. A ResultDescription describing the results of the statement.

getResultDescription

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public ResultDescription getResultDescription()

Implements org.apache.derby.iapi.sql.ResultSet.getResultDescription.

Returns null.

Returns:ResultDescription

Doc from org.apache.derby.iapi.sql.ResultSet.getResultDescription.

A ResultDescription describing the results of the statement.

getRowNumber	back to summary
public final int getRowNumber() Implements org.apache.derby.iapi.sql.ResultSet.getRowNumber. Returns the row number of the current row. Row numbers start from 1 and go to 'n'. Corresponds to row numbering used to position current row in the result set (as per JDBC). Returns:int the row number, or 0 if not on a row

getRowNumber

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public final int getRowNumber()

Implements org.apache.derby.iapi.sql.ResultSet.getRowNumber.

Returns the row number of the current row. Row numbers start from 1 and go to 'n'. Corresponds to row numbering used to position current row in the result set (as per JDBC).

Returns:int: the row number, or 0 if not on a row

getSubqueryTrackingArray back to summary

getSubqueryTrackingArray	back to summary
public final NoPutResultSet[] getSubqueryTrackingArray(int numSubqueries) Implements org.apache.derby.iapi.sql.ResultSet.getSubqueryTrackingArray. Doc from org.apache.derby.iapi.sql.ResultSet.getSubqueryTrackingArray. Get the subquery ResultSet tracking array from the top ResultSet. (Used for tracking open subqueries when closing down on an error.) Parameters numSubqueries:int The size of the array (For allocation on demand.) Returns:NoPutResultSet[] NoPutResultSet[] Array of NoPutResultSets for subqueries. See Also `ResultSet#getSubqueryTrackingArray`

public final NoPutResultSet[] getSubqueryTrackingArray(int numSubqueries)

Implements org.apache.derby.iapi.sql.ResultSet.getSubqueryTrackingArray.

Doc from org.apache.derby.iapi.sql.ResultSet.getSubqueryTrackingArray.

Get the subquery ResultSet tracking array from the top ResultSet. (Used for tracking open subqueries when closing down on an error.)

Parameters

numSubqueries:int: The size of the array (For allocation on demand.)

Returns:NoPutResultSet[]

NoPutResultSet[] Array of NoPutResultSets for subqueries.

See Also

ResultSet#getSubqueryTrackingArray

getTimeSpent	back to summary
public long getTimeSpent(int type) Implements org.apache.derby.iapi.sql.ResultSet.getTimeSpent. Return the total amount of time spent in this ResultSet Parameters type:int CURRENT_RESULTSET_ONLY - time spent only in this ResultSet ENTIRE_RESULTSET_TREE - time spent in this ResultSet and below. Returns:long long The total amount of time spent (in milliseconds).

getTimeSpent

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public long getTimeSpent(int type)

Implements org.apache.derby.iapi.sql.ResultSet.getTimeSpent.

Return the total amount of time spent in this ResultSet

Parameters

type:int: CURRENT_RESULTSET_ONLY - time spent only in this ResultSet ENTIRE_RESULTSET_TREE - time spent in this ResultSet and below.

Returns:long

long The total amount of time spent (in milliseconds).

getWarnings	back to summary
public SQLWarning getWarnings() Implements org.apache.derby.iapi.sql.ResultSet.getWarnings. Doc from org.apache.derby.iapi.sql.ResultSet.getWarnings. Return the set of warnings generated during the execution of this result set. The warnings are cleared once this call returns. Returns:SQLWarning the execution warnings

getWarnings

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public SQLWarning getWarnings()

Implements org.apache.derby.iapi.sql.ResultSet.getWarnings.

Doc from org.apache.derby.iapi.sql.ResultSet.getWarnings.

Return the set of warnings generated during the execution of this result set. The warnings are cleared once this call returns.

Returns:SQLWarning: the execution warnings

isClosed back to summary

isClosed	back to summary
public boolean isClosed() Implements org.apache.derby.iapi.sql.ResultSet.isClosed. Find out if the `ResultSet` is closed. Returns:boolean `true` if closed, `false` otherwise

public boolean isClosed()

Implements org.apache.derby.iapi.sql.ResultSet.isClosed.

Find out if the ResultSet is closed.

Returns:boolean: true if closed, false otherwise

modifiedRowCount	back to summary
public long modifiedRowCount() Implements org.apache.derby.iapi.sql.ResultSet.modifiedRowCount. Returns zero. Returns:long Doc from org.apache.derby.iapi.sql.ResultSet.modifiedRowCount. The number of rows affect by the statement, so far.

modifiedRowCount

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public long modifiedRowCount()

Implements org.apache.derby.iapi.sql.ResultSet.modifiedRowCount.

Returns zero.

Returns:long

Doc from org.apache.derby.iapi.sql.ResultSet.modifiedRowCount.

The number of rows affect by the statement, so far.

returnsRows	back to summary
public final boolean returnsRows() Implements org.apache.derby.iapi.sql.ResultSet.returnsRows. Returns FALSE Returns:boolean Doc from org.apache.derby.iapi.sql.ResultSet.returnsRows. TRUE if the statement returns rows, FALSE if not.

returnsRows

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public final boolean returnsRows()

Implements org.apache.derby.iapi.sql.ResultSet.returnsRows.

Returns FALSE

Returns:boolean

Doc from org.apache.derby.iapi.sql.ResultSet.returnsRows.

TRUE if the statement returns rows, FALSE if not.

setAfterLastRow back to summary

setAfterLastRow	back to summary
public final ExecRow setAfterLastRow() throws StandardException 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. Returns:ExecRow NULL. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow setAfterLastRow() throws StandardException

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.

Returns:ExecRow

NULL.

Exceptions

StandardException:: Thrown on failure

See Also

Row

setBeforeFirstRow back to summary

setBeforeFirstRow	back to summary
public final ExecRow setBeforeFirstRow() throws StandardException 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. Returns:ExecRow NULL. Exceptions StandardException: Thrown on failure See Also `Row`

public final ExecRow setBeforeFirstRow() throws StandardException

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.

Returns:ExecRow

NULL.

Exceptions

StandardException:: Thrown on failure

See Also

Row

setup back to summary

setup	back to summary
pack-priv void setup() throws StandardException Set up the result set for use. Should always be called from `open()`. Exceptions StandardException: thrown on error

pack-priv void setup() throws StandardException

Set up the result set for use. Should always be called from open().

Exceptions

StandardException:: thrown on error

setupGeneratedColumns	back to summary
private void setupGeneratedColumns(Activation activation, ValueRow newRow) throws StandardException Construct support for normalizing generated columns. This figures out which columns in the target row have generation clauses which need to be run.

toXML	back to summary
public Element toXML(Element parentNode, String tag) throws Exception Implements org.apache.derby.iapi.sql.ResultSet.toXML. Doc from org.apache.derby.iapi.sql.ResultSet.toXML. Produce an xml image of this ResultSet and its descendant ResultSets. Appends an element to the parentNode and returns the appended element. Parameters parentNode:Element Node to put content into. tag:String Element tag for content Returns:Element the content as an element with the given tag name Exceptions Exception: on error

toXML

back to summary

public Element toXML(Element parentNode, String tag) throws Exception

Implements org.apache.derby.iapi.sql.ResultSet.toXML.

Doc from org.apache.derby.iapi.sql.ResultSet.toXML.

Produce an xml image of this ResultSet and its descendant ResultSets. Appends an element to the parentNode and returns the appended element.

Parameters

parentNode:Element: Node to put content into.
tag:String: Element tag for content

Returns:Element

the content as an element with the given tag name

Exceptions

Exception:: on error

pack-priv abstract Class NoRowsResultSetImpl

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