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Java Source Code / Java Documentation » Database JDBC Connection Pool » mysql connector java 5.1.3 » com.mysql.jdbc

Source Cross Reference

Class Diagram

Java Document (Java Doc)

com.mysql.jdbc .RowData

All known Subclasses:   com.mysql.jdbc .RowDataCursor,  com.mysql.jdbc .RowDataDynamic,  com.mysql.jdbc .RowDataStatic,  com.mysql.jdbc .RowDataKeyset,
RowData
public interface RowData (Code)
This interface abstracts away how row data is accessed by the result set. It is meant to allow a static implementation (Current version), and a streaming one.
author:
   dgan

Field Summary
final public static int RESULT_SET_SIZE_UNKNOWN
     What's returned for the size of a result set when its size can not be determined.

Method Summary
void addRow(ResultSetRow 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.
ResultSetRow getAt(int index)
     Only works on non dynamic result sets.
int getCurrentRowNumber()
     Returns the current position in the result set as a row number.
ResultSetInternalMethods getOwner()

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()

boolean isLast()

void moveRowRelative(int rows)
     Moves the current position relative 'rows' from the current position.
ResultSetRow next()
     Returns the next row.
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 setMetadata(Field[] metadata)
     Sometimes the driver doesn't have metadata until after the statement has the result set in-hand (because it's cached), so it can call this to set it after the fact.
void setOwner(ResultSetImpl rs)

int size()
     Only works on non dynamic result sets.
boolean wasEmpty()


Field Detail
RESULT_SET_SIZE_UNKNOWN
final public static int RESULT_SET_SIZE_UNKNOWN(Code)
What's returned for the size of a result set when its size can not be determined.

Method Detail
addRow
void addRow(ResultSetRow row) throws SQLException(Code)
Adds a row to this row data.
Parameters:
  row - the row to add
throws:
  SQLException - if a database error occurs

afterLast
void afterLast() throws SQLException(Code)
Moves to after last.
throws:
  SQLException - if a database error occurs

beforeFirst
void beforeFirst() throws SQLException(Code)
Moves to before first.
throws:
  SQLException - if a database error occurs

beforeLast
void beforeLast() throws SQLException(Code)
Moves to before last so next el is the last el.
throws:
  SQLException - if a database error occurs

close
void close() throws SQLException(Code)
We're done.
throws:
  SQLException - if a database error occurs

getAt
ResultSetRow getAt(int index) throws SQLException(Code)
Only works on non dynamic result sets.
Parameters:
  index - row number to get at row data at index
throws:
  SQLException - if a database error occurs

getCurrentRowNumber
int getCurrentRowNumber() throws SQLException(Code)
Returns the current position in the result set as a row number. the current row number
throws:
  SQLException - if a database error occurs

getOwner
ResultSetInternalMethods getOwner()(Code)
Returns the result set that 'owns' this RowData

hasNext
boolean hasNext() throws SQLException(Code)
Returns true if another row exsists. true if more rows
throws:
  SQLException - if a database error occurs

isAfterLast
boolean isAfterLast() throws SQLException(Code)
Returns true if we got the last element. true if after last row
throws:
  SQLException - if a database error occurs

isBeforeFirst
boolean isBeforeFirst() throws SQLException(Code)
Returns if iteration has not occured yet. true if before first row
throws:
  SQLException - if a database error occurs

isDynamic
boolean isDynamic() throws SQLException(Code)
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. true if this result set is streaming from the server
throws:
  SQLException - if a database error occurs

isEmpty
boolean isEmpty() throws SQLException(Code)
Has no records. true if no records
throws:
  SQLException - if a database error occurs

isFirst
boolean isFirst() throws SQLException(Code)
Are we on the first row of the result set? true if on first row
throws:
  SQLException - if a database error occurs

isLast
boolean isLast() throws SQLException(Code)
Are we on the last row of the result set? true if on last row
throws:
  SQLException - if a database error occurs

moveRowRelative
void moveRowRelative(int rows) throws SQLException(Code)
Moves the current position relative 'rows' from the current position.
Parameters:
  rows - the relative number of rows to move
throws:
  SQLException - if a database error occurs

next
ResultSetRow next() throws SQLException(Code)
Returns the next row. the next row value
throws:
  SQLException - if a database error occurs

removeRow
void removeRow(int index) throws SQLException(Code)
Removes the row at the given index.
Parameters:
  index - the row to move to
throws:
  SQLException - if a database error occurs

setCurrentRow
void setCurrentRow(int rowNumber) throws SQLException(Code)
Moves the current position in the result set to the given row number.
Parameters:
  rowNumber - row to move to
throws:
  SQLException - if a database error occurs

setMetadata
void setMetadata(Field[] metadata)(Code)
Sometimes the driver doesn't have metadata until after the statement has the result set in-hand (because it's cached), so it can call this to set it after the fact.
Parameters:
  metadata - field-level metadata for the result set

setOwner
void setOwner(ResultSetImpl rs)(Code)
Set the result set that 'owns' this RowData
Parameters:
  rs - the result set that 'owns' this RowData

size
int size() throws SQLException(Code)
Only works on non dynamic result sets. the size of this row data
throws:
  SQLException - if a database error occurs

wasEmpty
boolean wasEmpty()(Code)
Did this result set have no rows?

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