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com.mysql.jdbc
Class RowDataDynamic  

java.lang.Object
  com.mysql.jdbc.RowDataDynamic

All Implemented Interfaces:

RowData

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public class RowDataDynamic

extends java.lang.Object

implements RowData

Allows streaming of MySQL data.

Version:

$Id: RowDataDynamic.java,v 1.8.2.9 2004/08/09 22:15:10 mmatthew Exp $

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Nested Class Summary
(package private)  class	RowDataDynamic.OperationNotSupportedException

 

Field Summary
private  int	columnCount
private  int	index
private  MysqlIO	io
private  boolean	isAfterEnd
private  boolean	isAtEnd
private  long	lastSuccessfulReadTimeMs
private  long	netWriteTimeoutMs
private  byte[][]	nextRow
private  ResultSet	owner
private  boolean	streamerClosed

 

Fields inherited from interface com.mysql.jdbc.RowData

RESULT_SET_SIZE_UNKNOWN

 

Constructor Summary

RowDataDynamic(MysqlIO io, int colCount)           Creates a new RowDataDynamic object.

 

Method Summary
void	addRow(byte[][] row)           Adds a row to this row data.
void	afterLast()           Moves to after last.
void	beforeFirst()           Moves to before first.
void	beforeLast()           Moves to before last so next el is the last el.
void	close()           We're done.
byte[][]	getAt(int index)           Only works on non dynamic result sets.
int	getCurrentRowNumber()           Returns the current position in the result set as a row number.
ResultSet	getOwner()           Returns the result set that 'owns' this RowData
boolean	hasNext()           Returns true if another row exsists.
boolean	isAfterLast()           Returns true if we got the last element.
boolean	isBeforeFirst()           Returns if iteration has not occured yet.
boolean	isDynamic()           Returns true if the result set is dynamic.
boolean	isEmpty()           Has no records.
boolean	isFirst()           Are we on the first row of the result set?
boolean	isLast()           Are we on the last row of the result set?
void	moveRowRelative(int rows)           Moves the current position relative 'rows' from the current position.
byte[][]	next()           Returns the next row.
private  void	nextRecord()
private  void	notSupported()
void	removeRow(int index)           Removes the row at the given index.
void	setCurrentRow(int rowNumber)           Moves the current position in the result set to the given row number.
void	setOwner(ResultSet rs)           Set the result set that 'owns' this RowData
int	size()           Only works on non dynamic result sets.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

io

private MysqlIO io

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nextRow

private byte[][] nextRow

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isAfterEnd

private boolean isAfterEnd

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isAtEnd

private boolean isAtEnd

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streamerClosed

private boolean streamerClosed

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columnCount

private int columnCount

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index

private int index

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lastSuccessfulReadTimeMs

private long lastSuccessfulReadTimeMs

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netWriteTimeoutMs

private long netWriteTimeoutMs

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owner

private ResultSet owner

Constructor Detail

RowDataDynamic

public RowDataDynamic(MysqlIO io,
                      int colCount)
               throws java.sql.SQLException

Creates a new RowDataDynamic object.

Method Detail

isAfterLast

public boolean isAfterLast()
                    throws java.sql.SQLException

Returns true if we got the last element.

Specified by:

isAfterLast in interface RowData

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getAt

public byte[][] getAt(int index)
               throws java.sql.SQLException

Only works on non dynamic result sets.

Specified by:

getAt in interface RowData

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isBeforeFirst

public boolean isBeforeFirst()
                      throws java.sql.SQLException

Returns if iteration has not occured yet.

Specified by:

isBeforeFirst in interface RowData

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setCurrentRow

public void setCurrentRow(int rowNumber)
                   throws java.sql.SQLException

Moves the current position in the result set to the given row number.

Specified by:

setCurrentRow in interface RowData

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setOwner

public void setOwner(ResultSet rs)

Description copied from interface: RowData

Set the result set that 'owns' this RowData

Specified by:

setOwner in interface RowData

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getOwner

public ResultSet getOwner()

Description copied from interface: RowData

Returns the result set that 'owns' this RowData

Specified by:

getOwner in interface RowData

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getCurrentRowNumber

public int getCurrentRowNumber()
                        throws java.sql.SQLException

Returns the current position in the result set as a row number.

Specified by:

getCurrentRowNumber in interface RowData

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isDynamic

public boolean isDynamic()

Returns true if the result set is dynamic. This means that move back and move forward won't work because we do not hold on to the records.

Specified by:

isDynamic in interface RowData

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isEmpty

public boolean isEmpty()
                throws java.sql.SQLException

Has no records.

Specified by:

isEmpty in interface RowData

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isFirst

public boolean isFirst()
                throws java.sql.SQLException

Are we on the first row of the result set?

Specified by:

isFirst in interface RowData

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isLast

public boolean isLast()
               throws java.sql.SQLException

Are we on the last row of the result set?

Specified by:

isLast in interface RowData

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addRow

public void addRow(byte[][] row)
            throws java.sql.SQLException

Adds a row to this row data.

Specified by:

addRow in interface RowData

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afterLast

public void afterLast()
               throws java.sql.SQLException

Moves to after last.

Specified by:

afterLast in interface RowData

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beforeFirst

public void beforeFirst()
                 throws java.sql.SQLException

Moves to before first.

Specified by:

beforeFirst in interface RowData

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beforeLast

public void beforeLast()
                throws java.sql.SQLException

Moves to before last so next el is the last el.

Specified by:

beforeLast in interface RowData

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close

public void close()
           throws java.sql.SQLException

We're done.

Specified by:

close in interface RowData

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hasNext

public boolean hasNext()
                throws java.sql.SQLException

Returns true if another row exsists.

Specified by:

hasNext in interface RowData

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moveRowRelative

public void moveRowRelative(int rows)
                     throws java.sql.SQLException

Moves the current position relative 'rows' from the current position.

Specified by:

moveRowRelative in interface RowData

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next

public byte[][] next()
              throws java.sql.SQLException

Returns the next row.

Specified by:

next in interface RowData

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removeRow

public void removeRow(int index)
               throws java.sql.SQLException

Removes the row at the given index.

Specified by:

removeRow in interface RowData

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size

public int size()

Only works on non dynamic result sets.

Specified by:

size in interface RowData

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nextRecord

private void nextRecord()
                 throws java.sql.SQLException

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notSupported

private void notSupported()
                   throws java.sql.SQLException

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Home >> All >> com >> mysql >> [ jdbc overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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