freemarker.template
Interface TemplateExceptionHandler

public interface TemplateExceptionHandler

An API for objects that handle exceptions that are thrown during template rendering.

Author:

Jonathan Revusky

Field Summary

static TemplateExceptionHandler	DEBUG_HANDLER This is a TemplateExceptionHandler used when you develop the templates.
static TemplateExceptionHandler	HTML_DEBUG_HANDLER This is a TemplateExceptionHandler used when you develop HTML templates.
static TemplateExceptionHandler	IGNORE_HANDLER This is a TemplateExceptionHandler which simply skips errors.
static TemplateExceptionHandler	RETHROW_HANDLER This is a TemplateExceptionHandler that simply rethrows the exception.

Method Summary

void	handleTemplateException(TemplateException te, Environment env, java.io.Writer out) handle the exception.

Field Detail

IGNORE_HANDLER

static final TemplateExceptionHandler IGNORE_HANDLER

This is a TemplateExceptionHandler which simply skips errors. It does nothing to handle the event. Note that the exception is still logged in any case, before being passed to the handler.

RETHROW_HANDLER

static final TemplateExceptionHandler RETHROW_HANDLER

This is a TemplateExceptionHandler that simply rethrows the exception. Note that the exception is logged before being rethrown.

DEBUG_HANDLER

static final TemplateExceptionHandler DEBUG_HANDLER

This is a TemplateExceptionHandler used when you develop the templates. This handler outputs the stack trace information to the client and then rethrows the exception.

HTML_DEBUG_HANDLER

static final TemplateExceptionHandler HTML_DEBUG_HANDLER

This is a TemplateExceptionHandler used when you develop HTML templates. This handler outputs the stack trace information to the client and then rethrows the exception, and surrounds it with tags to make the error message readable with the browser.

Method Detail

handleTemplateException

void handleTemplateException(TemplateException te,
                             Environment env,
                             java.io.Writer out)
                             throws TemplateException

handle the exception.

Parameters:

te - the exception that occurred.

env - The environment object that represents the rendering context

out - the character output stream to output to.

Throws:

TemplateException