org.millstone.base.terminal
Class SystemError

java.lang.Object
  |
  +--java.lang.Throwable
        |
        +--java.lang.Exception
              |
              +--java.lang.RuntimeException
                    |
                    +--org.millstone.base.terminal.SystemError

All Implemented Interfaces:

ErrorMessage, java.util.EventListener, Paintable, java.io.Serializable

public class SystemError

extends java.lang.RuntimeException

implements ErrorMessage

System error is a runtime exception caused by error in system. The system error can be shown to the user as it implements ErrorMessage interface, but contains technical information such as stack trace and exception.

Since:

3.0

Version:

3.0.3

Author:

IT Mill Ltd.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class org.millstone.base.terminal.Paintable

Paintable.RepaintRequestEvent, Paintable.RepaintRequestListener

Field Summary

Fields inherited from interface org.millstone.base.terminal.ErrorMessage

CRITICAL, ERROR, INFORMATION, SYSTEMERROR, WARNING

Constructor Summary

SystemError(java.lang.String message)
Constructor for SystemError with error message specified.

SystemError(java.lang.String message, java.lang.Throwable cause)
Constructor for SystemError with causing exception and error message.

SystemError(java.lang.Throwable cause)
Constructor for SystemError with cause.

Method Summary

void	addListener(Paintable.RepaintRequestListener listener) Error messages are inmodifiable and thus listeners are not needed.
java.lang.Throwable	getCause() Get cause for the error
int	getErrorLevel() Gets the errors level.
void	paint(PaintTarget target) Paints the paintable into a UIDL stream.
void	removeListener(Paintable.RepaintRequestListener listener) Error messages are inmodifiable and thus listeners are not needed.
void	requestRepaint() Error messages are inmodifiable and thus listeners are not needed.
void	requestRepaintRequests() Request sending of repaint events on any further visible changes.

Methods inherited from class java.lang.Throwable

fillInStackTrace, getLocalizedMessage, getMessage, getStackTrace, initCause, printStackTrace, printStackTrace, printStackTrace, setStackTrace, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SystemError

public SystemError(java.lang.String message)

Constructor for SystemError with error message specified.

Parameters:

message - Textual error description.

SystemError

public SystemError(java.lang.String message,
                   java.lang.Throwable cause)

Constructor for SystemError with causing exception and error message.

Parameters:

message - Textual error description.

cause - The throwable causing the system error.

SystemError

public SystemError(java.lang.Throwable cause)

Constructor for SystemError with cause.

Parameters:

cause - The throwable causing the system error.

Method Detail

getErrorLevel

public final int getErrorLevel()

Description copied from interface: ErrorMessage

Gets the errors level.

Specified by:

getErrorLevel in interface ErrorMessage

Returns:

the level of error as an integer.

paint

public void paint(PaintTarget target)
           throws PaintException

Description copied from interface: Paintable

Paints the paintable into a UIDL stream. This method creates the UIDL sequence describing it and outputs it to the given UIDL stream.

It's is called when the contents of the component should be painted in response to the component first being shown or having been altered so that its visual representation is changed.

Specified by:

paint in interface Paintable

Parameters:

target - target UIDL stream where the component should paint itself to

Throws:

PaintException - if the paint operation failed

getCause

public java.lang.Throwable getCause()

Get cause for the error

Overrides:

getCause in class java.lang.Throwable

addListener

public void addListener(Paintable.RepaintRequestListener listener)

Description copied from interface: ErrorMessage

Error messages are inmodifiable and thus listeners are not needed. This method should be implemented as empty.

Specified by:

addListener in interface ErrorMessage

See Also:

Paintable.addListener(Paintable.RepaintRequestListener)

removeListener

public void removeListener(Paintable.RepaintRequestListener listener)

Description copied from interface: ErrorMessage

Error messages are inmodifiable and thus listeners are not needed. This method should be implemented as empty.

Specified by:

removeListener in interface ErrorMessage

See Also:

Paintable.removeListener(Paintable.RepaintRequestListener)

requestRepaint

public void requestRepaint()

Description copied from interface: ErrorMessage

Error messages are inmodifiable and thus listeners are not needed. This method should be implemented as empty.

Specified by:

requestRepaint in interface ErrorMessage

See Also:

Paintable.requestRepaint()

requestRepaintRequests

public void requestRepaintRequests()

Description copied from interface: Paintable

Request sending of repaint events on any further visible changes. Normally the paintable only send up to one repaint request for listeners after paint as the paintable as the paintable assumes that the listeners already know about the repaint need. This method resets the assumtion. Paint implicitly does the assumtion reset functionality implemented by this method. This method is normally used only by the terminals to note paintables about implicit repaints (painting the component without actually invoking paint method).

Specified by:

requestRepaintRequests in interface Paintable