Interface ErrorListener
public interface ErrorListener
To provide customized error handling, implement this interface and use the setErrorListener
method to register an instance of the implementation with the Transformer
. The Transformer
then reports all errors and warnings through this interface.
If an application does not register its own custom ErrorListener
, the default ErrorListener
is used which reports all warnings and errors to System.err
and does not throw any Exception
s. Applications are strongly encouraged to register and use ErrorListener
s that insure proper behavior for warnings and errors.
For transformation errors, a Transformer
must use this interface instead of throwing an Exception
: it is up to the application to decide whether to throw an Exception
for different types of errors and warnings. Note however that the Transformer
is not required to continue with the transformation after a call to fatalError(TransformerException exception)
.
Transformer
s may use this mechanism to report XML parsing errors as well as transformation errors.
- Since:
- 1.4
Method Summary
Modifier and Type | Method | Description |
---|---|---|
void | error(TransformerException exception) | Receive notification of a recoverable error. |
void | fatalError(TransformerException exception) | Receive notification of a non-recoverable error. |
void | warning(TransformerException exception) | Receive notification of a warning. |
Method Detail
warning
void warning(TransformerException exception) throws TransformerException
Receive notification of a warning.
Transformer
can use this method to report conditions that are not errors or fatal errors. The default behaviour is to take no action.
After invoking this method, the Transformer must continue with the transformation. It should still be possible for the application to process the document through to the end.
- Parameters:
-
exception
- The warning information encapsulated in a transformer exception. - Throws:
-
TransformerException
- if the application chooses to discontinue the transformation. - See Also:
TransformerException
error
void error(TransformerException exception) throws TransformerException
Receive notification of a recoverable error.
The transformer must continue to try and provide normal transformation after invoking this method. It should still be possible for the application to process the document through to the end if no other errors are encountered.
- Parameters:
-
exception
- The error information encapsulated in a transformer exception. - Throws:
-
TransformerException
- if the application chooses to discontinue the transformation. - See Also:
TransformerException
fatalError
void fatalError(TransformerException exception) throws TransformerException
Receive notification of a non-recoverable error.
The processor may choose to continue, but will not normally proceed to a successful completion.
The method should throw an exception if it is unable to process the error, or if it wishes execution to terminate immediately. The processor will not necessarily honor this request.
- Parameters:
-
exception
- The error information encapsulated in aTransformerException
. - Throws:
-
TransformerException
- if the application chooses to discontinue the transformation. - See Also:
TransformerException