com.aspc.commander.sql

Class DeleteCommand

java.lang.Object

com.aspc.commander.Command

com.aspc.commander.sql.SQLCommand

com.aspc.commander.sql.DeleteCommand

All Implemented Interfaces:

CommandBuildResultsPlugin

public class DeleteCommand
extends SQLCommand

Delete records from the database.
Syntax

  DELETE FROM table [ WHERE condition ]
  

Usage

  /* Delete all the answers for the questionaire 'TEST' */
  DELETE FROM Answer 
  WHERE questionaire.code = 'TEST'
  

THREAD MODE: SINGLE THREADED command

Since:

3 December 2003

Author:

Nigel Leck

Field Summary

Fields inherited from class com.aspc.commander.sql.SQLCommand

CURSOR_SIZE

Constructor Summary

Constructors

Constructor and Description
DeleteCommand(Connection connection, Pattern pattern) std.

Method Summary

Modifier and Type	Method and Description
protected void	execute(Parser p) execute the command.
java.lang.String	getColumnName(int col) implements getColumnName of interface CommandBuildResultsPlugin.
java.lang.String	getColumnType(int col) Gets the column type for the given column index, starting at one
java.lang.String	getRecordID(int row) the record ID
java.lang.Object	getValue(int row, int col) the value for this row, column
boolean	isExecuteOnly() is this defined ( JDBC spec) to be execute only

Methods inherited from class com.aspc.commander.sql.SQLCommand

appendResult, appendResult, getCursorName, getRecordKey

Methods inherited from class com.aspc.commander.Command

execute, extMakeThreadName, getConnection, getPattern, getRawTitle, getTitle, makeThreadName, recordCall, setTitle

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.aspc.commander.sql.results.CommandBuildResultsPlugin

getRawTitle

Constructor Detail

DeleteCommand

public DeleteCommand(Connection connection,
                     Pattern pattern)

std. Command.

Parameters:

connection - the connection

pattern - the pattern

Method Detail

execute

protected void execute(Parser p)
                throws java.lang.Exception

execute the command.

Specified by:

execute in class Command

Parameters:

p - The parser

Throws:

java.lang.Exception - A serious problem

isExecuteOnly

public boolean isExecuteOnly()

is this defined ( JDBC spec) to be execute only

Specified by:

isExecuteOnly in interface CommandBuildResultsPlugin

Overrides:

isExecuteOnly in class SQLCommand

Returns:

true if execute only

getColumnName

public java.lang.String getColumnName(int col)

implements getColumnName of interface CommandBuildResultsPlugin. Returns the name for the given column index. Column indexes start at 1

Parameters:

col - the column number to name

Returns:

String the name of the column

getColumnType

public java.lang.String getColumnType(int col)

Gets the column type for the given column index, starting at one

Parameters:

col - the column index

Returns:

String the column type

getRecordID

public java.lang.String getRecordID(int row)

the record ID

Parameters:

row - the row index

Returns:

the record ID

getValue

public java.lang.Object getValue(int row,
                                 int col)

the value for this row, column

Parameters:

row - the row index

col - the column

Returns:

Object the value for the given row and column