org.eclipse.swt
Class SWTError

java.lang.Object
  |
  +--java.lang.Throwable
        |
        +--java.lang.Error
              |
              +--org.eclipse.swt.SWTError

All Implemented Interfaces:

Serializable

public class SWTError

extends Error

Untamed: This error is thrown whenever an unrecoverable error occurs internally in SWT. The message text and error code provide a further description of the problem. The exception has a throwable field which holds the underlying throwable that caused the problem (if this information is available (i.e. it may be null)).

SWTErrors are thrown when something fails internally which either leaves SWT in an unknown state (eg. the o/s call to remove an item from a list returns an error code) or when SWT is left in a known-to-be-unrecoverable state (eg. it runs out of callback resources). SWTErrors should not occur in typical programs, although "high reliability" applications should still catch them.

This class also provides support methods used by SWT to match error codes to the appropriate exception class (SWTError, SWTException, or IllegalArgumentException) and to provide human readable strings for SWT error codes.

See Also:

SWTException, SWT.error(int), Serialized Form

Field Summary

int	code Enabled:
Throwable	throwable Enabled:

Fields inherited from class java.lang.Error

Fields inherited from class java.lang.Throwable

Constructor Summary

SWTError()
Enabled: Constructs a new instance of this class with its walkback filled in.

SWTError(int code)
Enabled: Constructs a new instance of this class with its walkback and error code filled in.

SWTError(int code, String message)
Enabled: Constructs a new instance of this class with its walkback, error code and message filled in.

SWTError(String message)
Enabled: Constructs a new instance of this class with its walkback and message filled in.

Method Summary

String	getMessage() Enabled: Returns the string describing this SWTError object.
void	printStackTrace() Enabled: Outputs a printable representation of this error's walkback on the standard error stream.

Methods inherited from class java.lang.Throwable

backtrace, eStack, fillInStackTrace, getCause, getLocalizedMessage, getStackTrace, initCause, javaStack, leaf, printStackTrace, printStackTrace, printThrowableOn, setStackTrace, toString, unwrap

Methods inherited from class java.lang.Object

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

Field Detail

code

public int code

Enabled:

throwable

public Throwable throwable

Enabled:

Constructor Detail

SWTError

public SWTError()

Enabled: Constructs a new instance of this class with its walkback filled in. The error code is set to an unspecified value.

SWTError

public SWTError(String message)

Enabled: Constructs a new instance of this class with its walkback and message filled in. The error code is set to an unspecified value.

Parameters:

message - the detail message for the exception

SWTError

public SWTError(int code)

Enabled: Constructs a new instance of this class with its walkback and error code filled in.

Parameters:

code - the SWT error code

SWTError

public SWTError(int code,
                String message)

Enabled: Constructs a new instance of this class with its walkback, error code and message filled in.

Parameters:

code - the SWT error code

message - the detail message for the exception

Method Detail

getMessage

public String getMessage()

Enabled: Returns the string describing this SWTError object.

It is combined with the message string of the Throwable which caused this SWTError (if this information is available).

Overrides:

getMessage in class Throwable

Returns:

the error message string of this SWTError object

printStackTrace

public void printStackTrace()

Enabled: Outputs a printable representation of this error's walkback on the standard error stream.

Note: printStackTrace(PrintStream) and printStackTrace(PrintWriter) are not provided in order to maintain compatibility with CLDC.

Overrides:

printStackTrace in class Throwable