Formatter

Formatter

java.util.logging

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Java 1.4

A Formatter object is used by a Handler to convert a LogRecord to a String prior to logging it. Most applications can simply use one one of the pre-defined concrete subclasses: SimpleFormatter or XMLFormatter . Applications requiring custom formatting of log messages will need to subclass this class and define the format( ) method to perform the desired conversion. Such subclasses may find the formatMessage( ) method useful: it performs localization using java.util.ResourceBundle and formatting using the facilities of the java.text package. getHead( ) and getTail( ) return a prefix and suffix (such as opening and closing XML tags) for a log file.

 public abstract class  Formatter  {  // Protected Constructors  protected  Formatter  ( );  // Public Instance Methods  public abstract String  format  (LogRecord  record  );        public String  formatMessage  (LogRecord  record  );  synchronized  public String  getHead  (Handler  h  );        public String  getTail  (Handler  h  );   } 

Subclasses

SimpleFormatter , XMLFormatter

Passed To

Handler.setFormatter( ) , StreamHandler.StreamHandler( )

Returned By

Handler.getFormatter( )