public interface ErrorListener
To provide customized error handling, implement this interface and
 use the setErrorListener method to register an instance of the
 implmentation 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 Exceptions.
 Applications are strongly encouraged to register and use
 ErrorListeners 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).
Transformers may use this mechanism to report XML parsing
 errors as well as transformation errors.
| Modifier and Type | Method and 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. | 
void warning(TransformerException exception) throws TransformerException
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.
exception - The warning information encapsulated in a
                  transformer exception.TransformerException - if the application
 chooses to discontinue the transformation.TransformerExceptionvoid error(TransformerException exception) throws TransformerException
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.
exception - The error information encapsulated in a
                  transformer exception.TransformerException - if the application
 chooses to discontinue the transformation.TransformerExceptionvoid 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.
exception - The error information encapsulated in a
    TransformerException.TransformerException - if the application
 chooses to discontinue the transformation.TransformerException Submit a bug or feature 
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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