sale.stdforms
Class FormSheetStrategy

java.lang.Object
  sale.stdforms.FormSheetStrategy

All Implemented Interfaces:

Serializable, ProcessErrorCodes

Direct Known Subclasses:

EditButtonStrategy, MoveStrategy

public abstract class FormSheetStrategy
extends Object
implements ProcessErrorCodes, Serializable

Abstract super class of all strategies that are used with FormSheets.

Strategies are usually used to parameterize certain responses to user actions in standard FormSheets. Good examples are the parameterized responses to the buttons in a TwoTableFormSheet.

This abstract base class knows only about error handling. It uses error handling strategies so that subclasses can easily be adapted to behave differently in case of an error.

Since:

v2.0

Author:

Steffen Zschaler

See Also:

Serialized Form

Nested Class Summary

static interface

FormSheetStrategy.ErrorHandler Interface that defines a error handling strategy for a FormSheetStrategy.

Field Summary

static FormSheetStrategy.ErrorHandler	DEFAULT_ERROR_HANDLER The default error handler.
protected FormSheetStrategy.ErrorHandler	m_ehErrHandler The current error handler.
static FormSheetStrategy.ErrorHandler	MSG_POPUP_ERROR_HANDLER An alternative error handler that will pop up a modeless MsgForm in the process.

Fields inherited from interface sale.ProcessErrorCodes

DATABASKET_CONFLICT_ERROR, DUPLICATE_KEY_EXCEPTION, ERR_INTERNAL, ERR_LOWERBOUND, ERR_NOERROR, ERR_UPPERBOUND, NOT_ENOUGH_ELEMENTS_ERROR, REMOVE_VETO_EXCEPTION

Constructor Summary

FormSheetStrategy()

Method Summary

void	error(SaleProcess p, int nErrorCode) Handle an error.
void	setErrorHandler(FormSheetStrategy.ErrorHandler ehErrHandler) Set the current error handler.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_ERROR_HANDLER

public static final FormSheetStrategy.ErrorHandler DEFAULT_ERROR_HANDLER

The default error handler. This will pass the error on to the process' SaleProcess.error(int) method.

MSG_POPUP_ERROR_HANDLER

public static final FormSheetStrategy.ErrorHandler MSG_POPUP_ERROR_HANDLER

An alternative error handler that will pop up a modeless MsgForm in the process.

m_ehErrHandler

protected FormSheetStrategy.ErrorHandler m_ehErrHandler

The current error handler. Defaults to the DEFAULT_ERROR_HANDLER.

Constructor Detail

FormSheetStrategy

public FormSheetStrategy()

Method Detail

setErrorHandler

public void setErrorHandler(FormSheetStrategy.ErrorHandler ehErrHandler)

Set the current error handler.

Parameters:

ehErrHandler - the new error handler.

Override:

Never

error

public void error(SaleProcess p,
                  int nErrorCode)

Handle an error.

This is delegated to the error handler.

Parameters:

p - the process in which the error occurred.

nErrorCode - an int describing the error.

Override:

Never