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java.lang.Objectorg.apache.derby.impl.sql.execute.NoRowsResultSetImpl
org.apache.derby.impl.sql.execute.DMLWriteResultSet
org.apache.derby.impl.sql.execute.DeleteResultSet
Delete the rows from the specified base table. This will cause constraints to be checked and triggers to be executed based on the c's and t's compiled into the insert plan.
Fields inherited from interface org.apache.derby.iapi.sql.ResultSet |
CURRENT_RESULTSET_ONLY, ENTIRE_RESULTSET_TREE, ISAFTERLAST, ISBEFOREFIRST, ISFIRST, ISLAST |
Constructor Summary | |
|
DeleteResultSet(NoPutResultSet source,
Activation activation)
|
protected |
DeleteResultSet(NoPutResultSet source,
ConstantAction passedInConstantAction,
Activation activation)
REMIND: At present this takes just the conglomerate id of the table. |
Method Summary | |
boolean |
checkRowPosition(int isType)
Determine if the cursor is before the first row in the result set. |
void |
cleanUp()
Tells the system to clean up on an error. |
void |
close()
No rows to return, does nothing |
(package private) boolean |
collectAffectedRows()
|
(package private) NoPutResultSet |
createDependentSource(RowChanger rc)
create a source for the dependent table Delete Cascade ResultSet class will override this method. |
(package private) void |
deleteDeferredRows()
|
boolean |
doesCommit()
Does this ResultSet cause a commit or rollback. |
static void |
evaluateACheckConstraint(GeneratedMethod checkGM,
java.lang.String checkName,
long heapConglom,
Activation activation)
Run a check constraint against the current row. |
static void |
evaluateCheckConstraints(GeneratedMethod checkGM,
Activation activation)
Run check constraints against the current row. |
void |
finish()
doesn't need to do anything, as no calls are made that need to be restricted once the result set is 'finished'. |
(package private) void |
fireAfterTriggers()
|
(package private) void |
fireBeforeTriggers()
|
ExecRow |
getAbsoluteRow(int row)
Returns the row at the absolute position from the query, and returns NULL when there is no such position. |
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 long |
getCurrentTimeMillis()
Return the current time in milliseconds, if DEBUG and RunTimeStats is on, else return 0. |
java.lang.String |
getCursorName()
Return the cursor name, null in this case. |
java.sql.Timestamp |
getEndExecutionTimestamp()
Get the Timestamp for the end of execution. |
long |
getExecuteTime()
Get the execution time in milliseconds. |
ExecRow |
getFirstRow()
Returns the first row from the query, and returns NULL when there are no rows. |
(package private) java.lang.String |
getIndexNameFromCID(long indexCID)
get the index name given the conglomerate id of the index. |
ExecRow |
getLastRow()
Returns the last row from the query, and returns NULL when there are no rows. |
ExecRow |
getNextRow()
No rows to return, so throw an exception. |
protected ExecRow |
getNextRowCore(NoPutResultSet source)
Get next row from the source result set. |
ExecRow |
getPreviousRow()
Returns the previous row from the query, and returns NULL when there are no more previous rows. |
java.lang.String |
getQueryPlanText(int depth)
RESOLVE - This method will go away once it is overloaded in all subclasses. |
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 deleted rows. |
int |
getRowNumber()
Returns the row number of the current row. |
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 |
java.sql.SQLWarning |
getWarnings()
Return the set of warnings generated during the execution of this result set. |
boolean |
isClosed()
Just report that it is always closed. |
protected ExecRow |
makeDeferredSparseRow(ExecRow deferredBaseRow,
FormatableBitSet baseRowReadList,
LanguageConnectionContext lcc)
For deferred update, get a deferred sparse row based on the deferred non-sparse row. |
int |
modifiedRowCount()
Returns zero. |
void |
open()
Needs to be called before the result set will do anything. |
boolean |
returnsRows()
Returns FALSE |
(package private) void |
runFkChecker(boolean restrictCheckOnly)
|
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. |
(package private) void |
setup()
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
public TransactionController tc
public DeleteConstantAction constants
protected ResultDescription resultDescription
protected NoPutResultSet source
public NoPutResultSet savedSource
int numIndexes
protected RowChanger rc
public ExecRow row
protected ConglomerateController deferredBaseCC
public LanguageConnectionContext lcc
protected TemporaryRowHolderImpl rowHolder
private int numOpens
private boolean firstExecute
private FormatableBitSet baseRowReadList
private int rlColumnNumber
protected FKInfo[] fkInfoArray
private TriggerInfo triggerInfo
private RISetChecker fkChecker
private TriggerEventActivator triggerActivator
private boolean noTriggersOrFks
ExecRow deferredSparseRow
ExecRow deferredBaseRow
int lockMode
protected boolean cascadeDelete
ExecRow deferredRLRow
int numberOfBaseColumns
protected WriteCursorConstantAction constantAction
protected int[] baseRowReadMap
protected int[] streamStorableHeapColIds
protected DynamicCompiledOpenConglomInfo heapDCOCI
protected DynamicCompiledOpenConglomInfo[] indexDCOCIs
public int rowCount
protected final Activation activation
protected NoPutResultSet[] subqueryTrackingArray
protected java.lang.String indent
protected java.lang.String subIndent
protected int sourceDepth
protected long beginTime
protected long endTime
protected long beginExecutionTime
protected long endExecutionTime
Constructor Detail |
public DeleteResultSet(NoPutResultSet source, Activation activation) throws StandardException
protected DeleteResultSet(NoPutResultSet source, ConstantAction passedInConstantAction, Activation activation) throws StandardException
StandardException
- Thrown on errorMethod Detail |
public ResultDescription getResultDescription()
getResultDescription
in interface ResultSet
getResultDescription
in class NoRowsResultSetImpl
public void open() throws StandardException
ResultSet
StandardException
- Standard Cloudscape error policyvoid setup() throws StandardException
StandardException
boolean collectAffectedRows() throws StandardException
StandardException
void fireBeforeTriggers() throws StandardException
StandardException
void fireAfterTriggers() throws StandardException
StandardException
void deleteDeferredRows() throws StandardException
StandardException
void runFkChecker(boolean restrictCheckOnly) throws StandardException
StandardException
NoPutResultSet createDependentSource(RowChanger rc) throws StandardException
Delete Cascade ResultSet class will override this method.
StandardException
- Thrown on errorpublic void cleanUp() throws StandardException
ResultSet
StandardException
- Thrown on errorResultSet.cleanUp()
public void finish() throws StandardException
NoRowsResultSetImpl
finish
in interface ResultSet
finish
in class NoRowsResultSetImpl
StandardException
- on errorpublic final int modifiedRowCount()
NoRowsResultSetImpl
modifiedRowCount
in interface ResultSet
modifiedRowCount
in class NoRowsResultSetImpl
protected ExecRow getNextRowCore(NoPutResultSet source) throws StandardException
source
- SourceResultSet
Also look at Track#2432/change 12433
StandardException
protected ExecRow makeDeferredSparseRow(ExecRow deferredBaseRow, FormatableBitSet baseRowReadList, LanguageConnectionContext lcc) throws StandardException
StandardException
- Thrown on errorjava.lang.String getIndexNameFromCID(long indexCID)
indexCID
- conglomerate ID of the index.
public final boolean returnsRows()
returnsRows
in interface ResultSet
public ExecRow getAbsoluteRow(int row) throws StandardException
getAbsoluteRow
in interface ResultSet
row
- The position.
StandardException
- Thrown on failureRow
public ExecRow getRelativeRow(int row) throws StandardException
getRelativeRow
in interface ResultSet
row
- The position.
StandardException
- Thrown on failureRow
public ExecRow setBeforeFirstRow() throws StandardException
setBeforeFirstRow
in interface ResultSet
StandardException
- Thrown on failureRow
public ExecRow getFirstRow() throws StandardException
getFirstRow
in interface ResultSet
StandardException
- Thrown on failureRow
public ExecRow getNextRow() throws StandardException
getNextRow
in interface ResultSet
StandardException
- Always throws a
StandardException to indicate
that this method is not intended to
be used.Row
public ExecRow getPreviousRow() throws StandardException
getPreviousRow
in interface ResultSet
StandardException
- Thrown on failureRow
public ExecRow getLastRow() throws StandardException
getLastRow
in interface ResultSet
StandardException
- Thrown on failureRow
public ExecRow setAfterLastRow() throws StandardException
setAfterLastRow
in interface ResultSet
StandardException
- Thrown on failureRow
public boolean checkRowPosition(int isType)
checkRowPosition
in interface ResultSet
public int getRowNumber()
getRowNumber
in interface ResultSet
public void close() throws StandardException
close
in interface ResultSet
StandardException
- thrown on errorpublic boolean isClosed()
isClosed
in interface ResultSet
public long getExecuteTime()
getExecuteTime
in interface ResultSet
public java.sql.Timestamp getBeginExecutionTimestamp()
getBeginExecutionTimestamp
in interface ResultSet
public java.sql.Timestamp getEndExecutionTimestamp()
getEndExecutionTimestamp
in interface ResultSet
public java.lang.String getQueryPlanText(int depth)
depth
- Indentation level.
public long getTimeSpent(int type)
getTimeSpent
in interface ResultSet
type
- CURRENT_RESULTSET_ONLY - time spent only in this ResultSet
ENTIRE_RESULTSET_TREE - time spent in this ResultSet and below.
public final NoPutResultSet[] getSubqueryTrackingArray(int numSubqueries)
ResultSet
getSubqueryTrackingArray
in interface ResultSet
numSubqueries
- The size of the array (For allocation on demand.)
ResultSet.getSubqueryTrackingArray(int)
public ResultSet getAutoGeneratedKeysResultset()
ResultSet
getAutoGeneratedKeysResultset
in interface ResultSet
ResultSet.getAutoGeneratedKeysResultset()
public java.lang.String getCursorName()
getCursorName
in interface ResultSet
ResultSet.getCursorName()
protected final long getCurrentTimeMillis()
public static void evaluateACheckConstraint(GeneratedMethod checkGM, java.lang.String checkName, long heapConglom, Activation activation) throws StandardException
checkGM
- Generated code to run the check constraint.checkName
- Name of the constraint to check.heapConglom
- Number of heap conglomerate.
StandardException
- thrown on errorpublic static void evaluateCheckConstraints(GeneratedMethod checkGM, Activation activation) throws StandardException
checkGM
- Generated code to run the check constraint.
StandardException
- thrown on errorpublic boolean doesCommit()
public java.sql.SQLWarning getWarnings()
ResultSet
getWarnings
in interface ResultSet
|
Built on Tue 2006-10-10 19:23:47+0200, from revision exported | |||||||||
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