## org.apache.log4j.nt
Class NTEventLogAppender

    java.lang.Object
      org.apache.log4j.AppenderSkeleton
          org.apache.log4j.nt.NTEventLogAppender

All Implemented Interfaces:
  Appender, OptionHandler

    public class NTEventLogAppender

extends AppenderSkeleton

Append to the NT event log system.

WARNING This appender can only be installed and used on a Windows system.

Do not forget to place NTEventLogAppender.dll, NTEventLogAppender.amd64.dll, NTEventLogAppender.ia64.dll or NTEventLogAppender.x86.dll as appropriate in a directory that is on the PATH of the Windows system. Otherwise, you will get a java.lang.UnsatisfiedLinkError.

Author:
  Chris Taylor, Jim Cakalic

Field Summary

Fields inherited from class org.apache.log4j.AppenderSkeleton
`closed, errorHandler, headFilter, layout, name, tailFilter, threshold`

Constructor Summary
`NTEventLogAppender()`
`NTEventLogAppender(Layout layout)`
`NTEventLogAppender(String source)`
`NTEventLogAppender(String source, Layout layout)`
`NTEventLogAppender(String server, String source)`
`NTEventLogAppender(String server, String source, Layout layout)`

Method Summary
`void` `activateOptions()` Derived appenders should override this method if option structure requires it.
`void` `append(LoggingEvent event)` Subclasses of `AppenderSkeleton` should implement this method to perform actual logging.
`void` `close()` Release any resources allocated within the appender such as file handles, network connections, etc.
`void` `finalize()` Finalize this appender by calling the derived class' `close` method.
`String` `getSource()`
`boolean` `requiresLayout()` The `NTEventLogAppender` requires a layout.
`void` `setSource(String source)` The Source option which names the source of the event.

Methods inherited from class org.apache.log4j.AppenderSkeleton
`addFilter, clearFilters, doAppend, getErrorHandler, getFilter, getFirstFilter, getLayout, getName, getThreshold, isAsSevereAsThreshold, setErrorHandler, setLayout, setName, setThreshold`

Methods inherited from class java.lang.Object
`clone, equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### NTEventLogAppender

    public NTEventLogAppender()

### NTEventLogAppender

    public NTEventLogAppender(String source)

### NTEventLogAppender

    public NTEventLogAppender(String server,
                              String source)

### NTEventLogAppender

    public NTEventLogAppender(Layout layout)

### NTEventLogAppender

    public NTEventLogAppender(String source,
                              Layout layout)

### NTEventLogAppender

    public NTEventLogAppender(String server,
                              String source,
                              Layout layout)

Method Detail

### close

    public void close()

  Description copied from interface: `Appender`
  Release any resources allocated within the appender such as file handles, network connections, etc.

  It is a programming error to append to a closed appender.

### activateOptions

    public void activateOptions()

  Description copied from class: `AppenderSkeleton`
  Derived appenders should override this method if option structure requires it.

  Specified by:
    `activateOptions` in interface `OptionHandler`
  Overrides:
    `activateOptions` in class `AppenderSkeleton`

### append

    public void append(LoggingEvent event)

  Description copied from class: `AppenderSkeleton`
  Subclasses of `AppenderSkeleton` should implement this method to perform actual logging. See also `AppenderSkeleton.doAppend` method.

  Specified by:
    `append` in class `AppenderSkeleton`

### finalize

    public void finalize()

  Description copied from class: `AppenderSkeleton`
  Finalize this appender by calling the derived class' `close` method.

  Overrides:
    `finalize` in class `AppenderSkeleton`

### setSource

    public void setSource(String source)

  The Source option which names the source of the event. The current value of this constant is Source.

### getSource

    public String getSource()

### requiresLayout

    public boolean requiresLayout()

  The `NTEventLogAppender` requires a layout. Hence, this method always returns `true`.

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