Quadcap Embeddable Database

com.quadcap.sql.HavingCursor Class Reference

Inheritance diagram for com.quadcap.sql.HavingCursor:

List of all members.

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Detailed Description

Cursor to support HAVING clause.

XXX Optimize this by use of a 'HavingRow' class which would perform less copying.

Author:

Stan Bailes

Definition at line 58 of file HavingCursor.java.

Public Member Functions
	HavingCursor (Session session, Cursor cursor) throws SQLException
Row	getRow () throws SQLException
	Derived class implements this function to return the current cursor row.
void	updateRow (Row row) throws SQLException
	Replace the current cursor row with the specified row.
int	getColumnCount () throws SQLException
	Return the number of columns in this tuple.
boolean	next () throws SQLException
	Advance the cursor and return true if we advanced to a valid row.
Package Attributes
Row	row = null

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Constructor & Destructor Documentation

com.quadcap.sql.HavingCursor.HavingCursor (  Session  session, Cursor  cursor )  throws SQLException

Definition at line 61 of file HavingCursor.java.

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Member Function Documentation

int com.quadcap.sql.HavingCursor.getColumnCount (   )  throws SQLException

Return the number of columns in this tuple. Reimplemented from com.quadcap.sql.TupleImpl. Definition at line 78 of file HavingCursor.java. References com.quadcap.sql.Tuple.getColumnCount().

Row com.quadcap.sql.HavingCursor.getRow (   )  throws SQLException [virtual]

Derived class implements this function to return the current cursor row. Implementation required. Reimplemented from com.quadcap.sql.FilterCursor. Definition at line 65 of file HavingCursor.java. References com.quadcap.sql.HavingCursor.row.

boolean com.quadcap.sql.HavingCursor.next (   )  throws SQLException [virtual]

Advance the cursor and return true if we advanced to a valid row. Reimplemented from com.quadcap.sql.FilterCursor. Definition at line 82 of file HavingCursor.java. References com.quadcap.sql.Tuple.getColumnCount(), com.quadcap.sql.Cursor.getRow(), com.quadcap.sql.types.Value.isTrue(), com.quadcap.sql.Row.item(), com.quadcap.sql.Cursor.next(), com.quadcap.sql.HavingCursor.row, and com.quadcap.sql.Row.set().

void com.quadcap.sql.HavingCursor.updateRow (  Row  row  )  throws SQLException [virtual]

Replace the current cursor row with the specified row. Reimplemented from com.quadcap.sql.FilterCursor. Definition at line 69 of file HavingCursor.java. References com.quadcap.sql.Row.item(), com.quadcap.sql.HavingCursor.row, com.quadcap.sql.Row.set(), com.quadcap.sql.Row.size(), com.quadcap.sql.Cursor.updateRow(), and com.quadcap.sql.HavingCursor.updateRow(). Referenced by com.quadcap.sql.HavingCursor.updateRow().

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Member Data Documentation

Row com.quadcap.sql.HavingCursor.row = null [package]

Definition at line 59 of file HavingCursor.java. Referenced by com.quadcap.sql.HavingCursor.getRow(), com.quadcap.sql.HavingCursor.next(), and com.quadcap.sql.HavingCursor.updateRow().