org.mariadb.jdbc.internal.queryresults

Class MultiVariableIntExecutionResult

java.lang.Object

org.mariadb.jdbc.internal.queryresults.MultiVariableIntExecutionResult

All Implemented Interfaces:

ExecutionResult, MultiExecutionResult

public class MultiVariableIntExecutionResult
extends Object
implements MultiExecutionResult

Field Summary

Fields

Modifier and Type	Field and Description
Deque<ExecutionResult>	cachedExecutionResults

Constructor Summary

Constructors

Constructor and Description
MultiVariableIntExecutionResult(MariaDbStatement statement, int size, int fetchSize, boolean selectPossible) Constructor.

Method Summary

Modifier and Type	Method and Description
void	addResult(ExecutionResult executionResult)
void	addResultSet(MariaSelectResultSet result, boolean moreResultAvailable) Add a resultSet information.
void	addStats(long affectedRows, long insertId, boolean moreResultAvailable) Add execution statistics.
void	addStatsError()
void	addStatsError(boolean moreResultAvailable) Add resutl information when an Exception occur during batch.
void	close() Close resultset if needed.
void	fixStatsError(int sendCommand) Add missing information when Exception is thrown.
int[]	getAffectedRows() Get update array.
Deque<ExecutionResult>	getCachedExecutionResults()
int	getFetchSize()
int	getFirstAffectedRows()
long[]	getInsertIds() Get insert ids.
long[]	getInsertIdsForRewrite(int autoIncrementIncrement) Generate insert id's array for rewrite operation.
MariaSelectResultSet	getResultSet()
MariaDbStatement	getStatement()
boolean	hasMoreResultAvailable()
boolean	hasMoreThanOneAffectedRows()
boolean	isCanHaveCallableResultset()
boolean	isSelectPossible()
boolean	isSingleExecutionResult()
void	setFetchSize(int fetchSize)
protected void	setMoreResultAvailable(boolean moreResultAvailable)
int[]	updateResultsForRewrite(int waitedSize, boolean hasException) Set resultSet for rewrite queries.
int[]	updateResultsMultiple(int waitedSize, boolean hasException) Set update resultSet right on multiple rewrite.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

cachedExecutionResults

public Deque<ExecutionResult> cachedExecutionResults

Constructor Detail

MultiVariableIntExecutionResult

public MultiVariableIntExecutionResult(MariaDbStatement statement,
                                       int size,
                                       int fetchSize,
                                       boolean selectPossible)

Constructor. Creating resultSet data with size according to datas.

Parameters:

statement - current statement

size - initial data size

fetchSize - resultet fetch size

selectPossible - is select command possible

Method Detail

addResultSet

public void addResultSet(MariaSelectResultSet result,
                         boolean moreResultAvailable)

Add a resultSet information.

Specified by:

addResultSet in interface ExecutionResult

Parameters:

result - resultset implementation

moreResultAvailable - is there additional packet

addStats

public void addStats(long affectedRows,
                     long insertId,
                     boolean moreResultAvailable)

Add execution statistics.

Specified by:

addStats in interface ExecutionResult

Parameters:

affectedRows - number of affected rows

insertId - primary key

moreResultAvailable - is there additional packet

getInsertIds

public long[] getInsertIds()

Get insert ids.

Specified by:

getInsertIds in interface ExecutionResult

Returns:

insert ids results

getAffectedRows

public int[] getAffectedRows()

Get update array.

Specified by:

getAffectedRows in interface MultiExecutionResult

Returns:

update array.

hasMoreThanOneAffectedRows

public boolean hasMoreThanOneAffectedRows()

Specified by:

hasMoreThanOneAffectedRows in interface ExecutionResult

getFirstAffectedRows

public int getFirstAffectedRows()

Specified by:

getFirstAffectedRows in interface ExecutionResult

Specified by:

getFirstAffectedRows in interface MultiExecutionResult

addStatsError

public void addStatsError(boolean moreResultAvailable)

Add resutl information when an Exception occur during batch.

Specified by:

addStatsError in interface ExecutionResult

Parameters:

moreResultAvailable - has more result flag

addStatsError

public void addStatsError()

fixStatsError

public void fixStatsError(int sendCommand)

Add missing information when Exception is thrown.

Specified by:

fixStatsError in interface ExecutionResult

Parameters:

sendCommand - send number of command

updateResultsForRewrite

public int[] updateResultsForRewrite(int waitedSize,
                                     boolean hasException)

Set resultSet for rewrite queries. INSERT INTO XX VALUES (YYY) INSERT INTO XX VALUES (ZZZ) is rewritten INSERT INTO XX VALUES (YYY), (ZZZ) so modified row, will all be on the first row, or on a few rows : queries will split to have query size under the max_allowed_size, so data can be on multiple rows

Specified by:

updateResultsForRewrite in interface MultiExecutionResult

Parameters:

waitedSize - batchSize

hasException - has exception

Returns:

affected rows

getInsertIdsForRewrite

public long[] getInsertIdsForRewrite(int autoIncrementIncrement)

Generate insert id's array for rewrite operation. Rewrite operation will return only the first insert ids. Problem is rewrite queries cannot exceed max_allowed_packet size. so when sending many packet, driver must reconstruct the insert ids according to each packet first insert ids and connection AUTO_INCREMENT. //TODO innodb_autoinc_lock_mode if changed to "Interleaved Lock Mode", driver cannot ensure that insert ids values. Id's can be reconstruct using

Parameters:

autoIncrementIncrement - connection AUTO_INCREMENT variable

Returns:

insert ids array

updateResultsMultiple

public int[] updateResultsMultiple(int waitedSize,
                                   boolean hasException)

Set update resultSet right on multiple rewrite. INSERT XXXX INSERT XXXX is rewritten INSERT XXXX;INSERT XXXX So affected rows and insert Id are separate in as many okPacket.

Specified by:

updateResultsMultiple in interface MultiExecutionResult

Parameters:

waitedSize - batchSize

hasException - has exception

getResultSet

public MariaSelectResultSet getResultSet()

Specified by:

getResultSet in interface ExecutionResult

getStatement

public MariaDbStatement getStatement()

Specified by:

getStatement in interface ExecutionResult

hasMoreResultAvailable

public boolean hasMoreResultAvailable()

Specified by:

hasMoreResultAvailable in interface ExecutionResult

setMoreResultAvailable

protected void setMoreResultAvailable(boolean moreResultAvailable)

getFetchSize

public int getFetchSize()

Specified by:

getFetchSize in interface ExecutionResult

setFetchSize

public void setFetchSize(int fetchSize)

Specified by:

setFetchSize in interface ExecutionResult

close

public void close()
           throws SQLException

Close resultset if needed.

Specified by:

close in interface ExecutionResult

Throws:

SQLException - if exception occur during resultset close.

isSelectPossible

public boolean isSelectPossible()

Specified by:

isSelectPossible in interface ExecutionResult

isCanHaveCallableResultset

public boolean isCanHaveCallableResultset()

Specified by:

isCanHaveCallableResultset in interface ExecutionResult

getCachedExecutionResults

public Deque<ExecutionResult> getCachedExecutionResults()

Specified by:

getCachedExecutionResults in interface ExecutionResult

addResult

public void addResult(ExecutionResult executionResult)

isSingleExecutionResult

public boolean isSingleExecutionResult()

Specified by:

isSingleExecutionResult in interface ExecutionResult