Package org.apache.tapestry5.services
Interface RequestExceptionHandler
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- All Known Implementing Classes:
DefaultRequestExceptionHandler
@UsesMappedConfiguration(key=java.lang.Class.class, value=java.lang.Object.class) public interface RequestExceptionHandler
Service invoked when an uncaught exception occurs. The error handler is responsible for providing a response to the user to describe the error. The default implementation accepts the configuration, which maps an exception class to a corresponding helper. The helper is either an instance ofExceptionHandlerAssistantor is a Class for a page that will be redirected to, to present the exception.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description voidhandleRequestException(java.lang.Throwable exception)Responsible for handling the error in some way and providing some response to the client.
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Method Detail
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handleRequestException
void handleRequestException(java.lang.Throwable exception) throws java.io.IOException
Responsible for handling the error in some way and providing some response to the client. A default implementation may render an error response page. The handler is also responsible for setting the response status and the X-Tapestry-ErrorMessage response header. These are very important in Ajax requests to allow the client-side logic to detect the error and present it to the user.- Parameters:
exception- uncaught exception to be reported- Throws:
java.io.IOException
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