abstract class BasicNoPutResultSetImpl extends java.lang.Object implements NoPutResultSet
This abstract class does not define the entire ResultSet interface, but leaves the 'get' half of the interface for subtypes to implement. It is package-visible only, with its methods being public for exposure by its subtypes.
| Modifier and Type | Field and Description |
|---|---|
protected Activation |
activation |
private int[] |
baseColumnMap |
long |
beginTime |
long |
closeTime |
(package private) ExecRow |
compactRow |
long |
constructorTime |
protected ExecRow |
currentRow |
protected long |
endExecutionTime |
protected boolean |
finished |
protected boolean |
isOpen |
protected boolean |
isTopResultSet |
long |
nextTime |
int |
numOpens |
long |
openTime |
double |
optimizerEstimatedCost |
double |
optimizerEstimatedRowCount |
(package private) ResultDescription |
resultDescription |
int |
rowsFiltered |
int |
rowsSeen |
protected long |
startExecutionTime |
private StatementContext |
statementContext |
private boolean |
statisticsTimingOn |
NoPutResultSet[] |
subqueryTrackingArray |
private TransactionController |
tc |
private java.sql.SQLWarning |
warnings |
ABSOLUTE, FIRST, LAST, NEXT, PREVIOUS, RELATIVECURRENT_RESULTSET_ONLY, ENTIRE_RESULTSET_TREE, ISAFTERLAST, ISBEFOREFIRST, ISFIRST, ISLAST| Constructor and Description |
|---|
BasicNoPutResultSetImpl(ResultDescription resultDescription,
Activation activation,
double optimizerEstimatedRowCount,
double optimizerEstimatedCost)
Constructor.
|
| Modifier and Type | Method and Description |
|---|---|
void |
addWarning(java.sql.SQLWarning w)
Add a warning to this result set.
|
protected void |
attachStatementContext()
Attach this result set to the top statement context on the stack.
|
void |
checkCancellationFlag()
Checks whether the currently executing statement has been cancelled.
|
boolean |
checkRowPosition(int isType)
Determine if the cursor is before the first row in the result
set.
|
void |
cleanUp()
Clean up on error
|
protected java.lang.String |
dumpTimeStats(java.lang.String indent,
java.lang.String subIndent)
Dump out the time information for run time stats.
|
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() |
ExecRow |
getAbsoluteRow(int row)
Returns the row at the absolute position from the query,
and returns NULL when there is no such position.
|
Activation |
getActivation() |
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 ExecRow |
getCompactRow(ExecRow candidate,
FormatableBitSet accessedCols,
boolean isKeyed)
Get a compacted version of the candidate row according to the
columns specified in the bit map.
|
protected long |
getCurrentTimeMillis()
Return the current time in milliseconds, if DEBUG and RunTimeStats is
on, else return 0.
|
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) ExecutionFactory |
getExecutionFactory()
Get a execution factory
|
ExecRow |
getFirstRow()
Returns the first row from the query, and returns NULL when there
are no rows.
|
protected LanguageConnectionContext |
getLanguageConnectionContext()
Cache the language connection context.
|
ExecRow |
getLastRow()
Returns the last row from the query, and returns NULL when there
are no rows.
|
ExecRow |
getNextRow()
Return the requested values computed
from the next row (if any) for which
the restriction evaluates to true.
|
abstract ExecRow |
getNextRowCore()
Return the requested values computed
from the next row (if any) for which
the restriction evaluates to true.
|
int |
getPointOfAttachment()
Return the point of attachment for this subquery.
|
ExecRow |
getPreviousRow()
Returns the previous row from the query, and returns NULL when there
are no more previous rows.
|
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.
|
ResultDescription |
getResultDescription()
Returns the description of the table's rows
|
int |
getRowNumber()
Returns the row number of the current row.
|
int |
getScanIsolationLevel()
Return the isolation level of the scan in the result set.
|
NoPutResultSet[] |
getSubqueryTrackingArray(int numSubqueries)
Get the subquery ResultSet tracking array from the top ResultSet.
|
(package private) TransactionController |
getTransactionController()
Get the current transaction controller.
|
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
|
protected boolean |
isXplainOnlyMode() |
void |
markAsTopResultSet()
Mark the ResultSet as the topmost one in the ResultSet tree.
|
long |
modifiedRowCount()
Returns the number of rows affected by the statement.
|
void |
open()
open a scan on the table. scan parameters are evaluated
at each open, so there is probably some way of altering
their values...
|
protected void |
recordConstructorTime()
Allow sub-classes to record the total
time spent in their constructor time.
|
void |
reopenCore()
This is the default implementation of reopenCore().
|
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.
|
ExecRow |
setAfterLastRow()
Sets the current position to after the last row and returns NULL
because there is no current row.
|
ExecRow |
setBeforeFirstRow()
Sets the current position to before the first row and returns NULL
because there is no current row.
|
protected ExecRow |
setCompactRow(ExecRow candidateRow,
ExecRow compactRow)
Copy columns from the candidate row from the store to the given
compact row.
|
protected void |
setCompatRow(ExecRow compactRow,
DataValueDescriptor[] sourceRow) |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitmarkRowAsDeleted, openCore, positionScanAtRowLocation, setCurrentRow, setNeedsRowLocation, setTargetResultSet, updateRowclearCurrentRow, close, getCursorName, getTimeSpentneedsRowLocation, rowLocationcloseRowSource, getNextRowFromRowSource, getValidColumns, needsToCloneprotected boolean isOpen
protected boolean finished
protected ExecRow currentRow
protected boolean isTopResultSet
private java.sql.SQLWarning warnings
public int numOpens
public int rowsSeen
public int rowsFiltered
protected long startExecutionTime
protected long endExecutionTime
public long beginTime
public long constructorTime
public long openTime
public long nextTime
public long closeTime
public double optimizerEstimatedRowCount
public double optimizerEstimatedCost
private StatementContext statementContext
public NoPutResultSet[] subqueryTrackingArray
ExecRow compactRow
protected final Activation activation
private final boolean statisticsTimingOn
ResultDescription resultDescription
private transient TransactionController tc
private int[] baseColumnMap
BasicNoPutResultSetImpl(ResultDescription resultDescription, Activation activation, double optimizerEstimatedRowCount, double optimizerEstimatedCost)
resultDescription - the result description. May be null.activation - The activationoptimizerEstimatedRowCount - The optimizer's estimate of the
total number of rows for this
result setoptimizerEstimatedCost - The optimizer's estimated cost for
this result setprotected final void recordConstructorTime()
public final Activation getActivation()
getActivation in interface ResultSetprotected final boolean isXplainOnlyMode()
public void reopenCore()
throws StandardException
reopenCore in interface NoPutResultSetStandardException - thrown if cursor finished.NoPutResultSet.openCore()public abstract ExecRow getNextRowCore() throws StandardException
NoPutResultSetrestriction and projection parameters are evaluated for each row.
getNextRowCore in interface NoPutResultSetStandardException - thrown if cursor finished.NoPutResultSet.getNextRowCore()public int getPointOfAttachment()
NoPutResultSetgetPointOfAttachment in interface NoPutResultSetNoPutResultSet.getPointOfAttachment()public void markAsTopResultSet()
markAsTopResultSet in interface NoPutResultSetpublic int getScanIsolationLevel()
NoPutResultSetgetScanIsolationLevel in interface NoPutResultSetNoPutResultSet.getScanIsolationLevel()public double getEstimatedRowCount()
NoPutResultSetgetEstimatedRowCount in interface NoPutResultSetNoPutResultSet.getEstimatedRowCount()public boolean requiresRelocking()
NoPutResultSetrequiresRelocking in interface NoPutResultSetNoPutResultSet.requiresRelocking()public final void open()
throws StandardException
open in interface ResultSetStandardException - thrown if cursor finished.public ExecRow getAbsoluteRow(int row) throws StandardException
getAbsoluteRow in interface ResultSetrow - The position.StandardException - Thrown on failureRowpublic ExecRow getRelativeRow(int row) throws StandardException
getRelativeRow in interface ResultSetrow - The position.StandardException - Thrown on failureRowpublic ExecRow setBeforeFirstRow() throws StandardException
setBeforeFirstRow in interface ResultSetStandardException - Thrown on failureRowpublic boolean checkRowPosition(int isType)
throws StandardException
checkRowPosition in interface ResultSetStandardException - Thrown on error.public int getRowNumber()
getRowNumber in interface ResultSetpublic ExecRow getFirstRow() throws StandardException
getFirstRow in interface ResultSetStandardException - Thrown on failureRowpublic final ExecRow getNextRow() throws StandardException
restriction and projection parameters are evaluated for each row. NOTE: This method should only be called on the top ResultSet of a ResultSet tree to ensure that the entire ResultSet tree gets closed down on an error. the getNextRowCore() method will be called for all other ResultSets in the tree.
getNextRow in interface ResultSetStandardException - thrown on failure.StandardException - ResultSetNotOpen thrown if not yet open.Rowpublic ExecRow getPreviousRow() throws StandardException
getPreviousRow in interface ResultSetStandardException - Thrown on failureRowpublic ExecRow getLastRow() throws StandardException
getLastRow in interface ResultSetStandardException - Thrown on failureRowpublic ExecRow setAfterLastRow() throws StandardException
setAfterLastRow in interface ResultSetStandardException - Thrown on failureRowpublic boolean returnsRows()
returnsRows in interface ResultSetpublic final long modifiedRowCount()
ResultSetmodifiedRowCount in interface ResultSetpublic void cleanUp()
throws StandardException
cleanUp in interface ResultSetStandardException - Thrown on failurepublic boolean isClosed()
public void finish()
throws StandardException
ResultSetfinish in interface ResultSetStandardException - on errorprotected final void finishAndRTS()
throws StandardException
StandardException - on errorpublic ResultDescription getResultDescription()
getResultDescription in interface ResultSetpublic long getExecuteTime()
getExecuteTime in interface ResultSetpublic java.sql.Timestamp getBeginExecutionTimestamp()
getBeginExecutionTimestamp in interface ResultSetpublic java.sql.Timestamp getEndExecutionTimestamp()
getEndExecutionTimestamp in interface ResultSetpublic final NoPutResultSet[] getSubqueryTrackingArray(int numSubqueries)
ResultSetgetSubqueryTrackingArray in interface ResultSetnumSubqueries - The size of the array (For allocation on demand.)ResultSet.getSubqueryTrackingArray(int)protected final long getCurrentTimeMillis()
public ResultSet getAutoGeneratedKeysResultset()
ResultSetgetAutoGeneratedKeysResultset in interface ResultSetResultSet.getAutoGeneratedKeysResultset()protected final long getElapsedMillis(long beginTime)
protected final java.lang.String dumpTimeStats(java.lang.String indent,
java.lang.String subIndent)
protected void attachStatementContext()
throws StandardException
StandardException - thrown if cursor finished.protected final LanguageConnectionContext getLanguageConnectionContext()
public int resultSetNumber()
NoPutResultSetresultSetNumber in interface NoPutResultSetNoPutResultSet.resultSetNumber()final ExecutionFactory getExecutionFactory()
final TransactionController getTransactionController()
protected ExecRow getCompactRow(ExecRow candidate, FormatableBitSet accessedCols, boolean isKeyed) throws StandardException
candidate - The row to get the columns fromaccessedCols - A bit map of the columns that are accessed in
the candidate rowisKeyed - Tells whether to return a ValueRow or an IndexRowStandardExceptionprotected ExecRow setCompactRow(ExecRow candidateRow, ExecRow compactRow)
candidateRow - The candidate row from the storecompactRow - The compact row to fill inprotected final void setCompatRow(ExecRow compactRow, DataValueDescriptor[] sourceRow)
public boolean isForUpdate()
isForUpdate in interface NoPutResultSetpublic void checkCancellationFlag()
throws StandardException
StandardExceptionStatementContextpublic final void addWarning(java.sql.SQLWarning w)
ResultSetaddWarning in interface ResultSetw - the warning to addpublic final java.sql.SQLWarning getWarnings()
ResultSetgetWarnings in interface ResultSetApache Derby V10.10 Internals - Copyright © 2004,2014 The Apache Software Foundation. All Rights Reserved.