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# XMLLayout Class Reference

Inherits Layout.

List of all members.

## Detailed Description

The output of the XMLLayout consists of a series of log4j:event elements.

It does not output a complete well-formed XML file. The output is designed to be included as an external entity in a separate file to form a correct XML file.

For example, if `abc` is the name of the file where the XMLLayout ouput goes, then a well-formed XML file would be:

`<?xml version="1.0" ?>`

`<!DOCTYPE log4j:eventSet [<!ENTITY data SYSTEM "abc">]>`

`<log4j:eventSet version="1.2" xmlns:log4j="http://jakarta.apache.org/log4j/">`

`&data;`

`</log4j:eventSet>`

This approach enforces the independence of the XMLLayout and the appender where it is embedded.

## Public Member Functions

| XMLLayout ()
void | setLocationInfo (bool locationInfo1)
| The LocationInfo option takes a boolean value.
bool | getLocationInfo () const
| Returns the current value of the LocationInfo option.
void | setProperties (bool flag)
| Sets whether MDC key-value pairs should be output, default false.
bool | getProperties ()
| Gets whether MDC key-value pairs should be output.
void | activateOptions (log4cxx::helpers::Pool &)
| No options to activate.
virtual void | setOption (const LogString &option, const LogString &value)
| Set options.
virtual void | format (LogString &output, const spi::LoggingEventPtr &event, log4cxx::helpers::Pool &p) const
| Formats a LoggingEvent in conformance with the log4cxx.dtd.
virtual bool | ignoresThrowable () const
| The XMLLayout prints and does not ignore exceptions.

## Constructor & Destructor Documentation

XMLLayout | ( |  | ) |

## Member Function Documentation

void activateOptions | ( | log4cxx::helpers::Pool & |  | ) | `[inline, virtual]`

| No options to activate. Implements OptionHandler.

virtual void format | ( | LogString & | output,
|  | const spi::LoggingEventPtr & | event,
|  | log4cxx::helpers::Pool & | p
| ) | const`[virtual]`

| Formats a LoggingEvent in conformance with the log4cxx.dtd. Implements Layout.

bool getLocationInfo | ( |  | ) | const`[inline]`

| Returns the current value of the LocationInfo option.

bool getProperties | ( |  | ) | `[inline]`

| Gets whether MDC key-value pairs should be output.

Returns:
  true if MDC key-value pairs are output.

virtual bool ignoresThrowable | ( |  | ) | const`[inline, virtual]`

| The XMLLayout prints and does not ignore exceptions. Hence the return value `false`. Implements Layout.

void setLocationInfo | ( | bool | locationInfo1 | ) | `[inline]`

| The LocationInfo option takes a boolean value. By default, it is set to false which means there will be no location information output by this layout. If the the option is set to true, then the file name and line number of the statement at the origin of the log statement will be output.

If you are embedding this layout within a SMTPAppender then make sure to set the LocationInfo option of that appender as well.

virtual void setOption | ( | const LogString & | option,
|  | const LogString & | value
| ) | `[virtual]`

| Set options. Implements OptionHandler.

void setProperties | ( | bool | flag | ) | `[inline]`

| Sets whether MDC key-value pairs should be output, default false.

Parameters:

  | flag | new value.

The documentation for this class was generated from the following file:

- xmllayout.h