org.axiondb.engine.commands
Class DeleteCommand

java.lang.Object
  org.axiondb.engine.commands.BaseAxionCommand
      org.axiondb.engine.commands.DeleteCommand

All Implemented Interfaces:

AxionCommand

public class DeleteCommand

extends BaseAxionCommand

A DELETE command.

Version:

$Revision: 1.26 $ $Date: 2004/08/19 02:18:49 $

Constructor Summary

DeleteCommand(String tableName, Selectable where)

DeleteCommand(TableIdentifier table, Selectable where)

Method Summary

boolean	execute(Database database) Executes an SQL statement that may return multiple results.
AxionResultSet	executeQuery(Database database) Unsupported
int	executeUpdate(Database db) Executes an SQL that may add, delete or modify zero or more rows within the database, such as an INSERT, UPDATE or DELETE statement.
protected Iterator	getBindVariableIterator() Returns an Iteratorover all my BindVariables, in the proper order.
TableIdentifier	getTable()
Selectable	getWhere()
void	setTable(TableIdentifier table)
void	setWhere(Selectable where)

Methods inherited from class org.axiondb.engine.commands.BaseAxionCommand

appendBindVariables, assertNotReadOnly, attemptToConvertValue, bind, clearBindings, getEffectedRowCount, getResultSet, getRowIterator, getRowIterator, getTableForIdentifier, resolveSelectableList, resolveSelectableList, setEffectedRowCount, setResultSet

Methods inherited from class java.lang.Object

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

Constructor Detail

DeleteCommand

public DeleteCommand(String tableName,
                     Selectable where)

DeleteCommand

public DeleteCommand(TableIdentifier table,
                     Selectable where)

Method Detail

getTable

public TableIdentifier getTable()

setTable

public void setTable(TableIdentifier table)

setWhere

public void setWhere(Selectable where)

getWhere

public Selectable getWhere()

executeUpdate

public int executeUpdate(Database db)
                  throws AxionException

Description copied from interface: AxionCommand

Executes an SQL that may add, delete or modify zero or more rows within the database, such as an INSERT, UPDATE or DELETE statement. In addition, SQL statements that return nothing, such as SQL DDL statements, can be executed via this method.

Returns:

the number of rows modified

Throws:

AxionException

See Also:

Statement.executeUpdate(java.lang.String), PreparedStatement.executeUpdate()

executeQuery

public AxionResultSet executeQuery(Database database)
                            throws AxionException

Unsupported

Returns:

the generated ResultSet

Throws:

AxionException

See Also:

Statement.executeQuery(java.lang.String), PreparedStatement.executeQuery()

execute

public boolean execute(Database database)
                throws AxionException

Description copied from interface: AxionCommand

Executes an SQL statement that may return multiple results.

Returns:

true if one or more ResultSets were generated, false otherwise

Throws:

AxionException

See Also:

Statement.execute(java.lang.String), PreparedStatement.execute()

getBindVariableIterator

protected Iterator getBindVariableIterator()

Description copied from class: BaseAxionCommand

Returns an Iteratorover all my BindVariables, in the proper order. Default impl returns empty iterator.

Overrides:

getBindVariableIterator in class BaseAxionCommand