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public interface RowData
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.
Field Summary | |
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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 | |
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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()
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. |
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)
Set the result set that 'owns' this RowData |
int |
size()
Only works on non dynamic result sets. |
boolean |
wasEmpty()
Did this result set have no rows? |
Field Detail |
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static final int RESULT_SET_SIZE_UNKNOWN
Method Detail |
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void addRow(ResultSetRow row) throws java.sql.SQLException
row
- the row to add
java.sql.SQLException
- if a database error occursvoid afterLast() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursvoid beforeFirst() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursvoid beforeLast() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursvoid close() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursResultSetRow getAt(int index) throws java.sql.SQLException
index
- row number to get at
java.sql.SQLException
- if a database error occursint getCurrentRowNumber() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursResultSetInternalMethods getOwner()
boolean hasNext() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean isAfterLast() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean isBeforeFirst() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean isDynamic() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean isEmpty() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean isFirst() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean isLast() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursvoid moveRowRelative(int rows) throws java.sql.SQLException
rows
- the relative number of rows to move
java.sql.SQLException
- if a database error occursResultSetRow next() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursvoid removeRow(int index) throws java.sql.SQLException
index
- the row to move to
java.sql.SQLException
- if a database error occursvoid setCurrentRow(int rowNumber) throws java.sql.SQLException
rowNumber
- row to move to
java.sql.SQLException
- if a database error occursvoid setOwner(ResultSetImpl rs)
rs
- the result set that 'owns' this RowDataint size() throws java.sql.SQLException
java.sql.SQLException
- if a database error occursboolean wasEmpty()
void setMetadata(Field[] metadata)
metadata
- field-level metadata for the result set
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