Formatter

Formatter objects are used to format LogRecord objects into a string representation. Head and tail strings are sometimes used to wrap a set of records. The getHead and getTail methods are used for this purpose.

Summary

Protected Constructors
	Formatter() Constructs a `Formatter` object.

Protected Constructors

Formatter()

Constructs a Formatter object.

Public Methods
abstract String	format(LogRecord r) Converts a `LogRecord` object into a string representation.
String	formatMessage(LogRecord r) Formats a `LogRecord` object into a localized string representation.
String	getHead(Handler h) Gets the head string used to wrap a set of log records.
String	getTail(Handler h) Gets the tail string used to wrap a set of log records.

Public Methods

abstract String

format(LogRecord r)

Converts a LogRecord object into a string representation.

String

formatMessage(LogRecord r)

Formats a LogRecord object into a localized string representation.

String

getHead(Handler h)

Gets the head string used to wrap a set of log records.

String

getTail(Handler h)

Gets the tail string used to wrap a set of log records.

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Inherited Methods

From class java.lang.Object

Object	clone() Creates and returns a copy of this `Object`.
boolean	equals(Object o) Compares this instance with the specified object and indicates if they are equal.
void	finalize() Invoked when the garbage collector has detected that this instance is no longer reachable.
final Class<?>	getClass() Returns the unique instance of `Class` that represents this object's class.
int	hashCode() Returns an integer hash code for this object.
final void	notify() Causes a thread which is waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
final void	notifyAll() Causes all threads which are waiting on this object's monitor (by means of calling one of the `wait()` methods) to be woken up.
String	toString() Returns a string containing a concise, human-readable description of this object.
final void	wait() Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object.
final void	wait(long millis, int nanos) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.
final void	wait(long millis) Causes the calling thread to wait until another thread calls the `notify()` or `notifyAll()` method of this object or until the specified timeout expires.

Public Methods

public abstract String format (LogRecord r)

Added in API level 1

Converts a LogRecord object into a string representation. The resulted string is usually localized and includes the message field of the record.

Parameters

r	the log record to be formatted into a string.

Returns

the formatted string.

public String formatMessage (LogRecord r)

Added in API level 1

Formats a LogRecord object into a localized string representation. This is a convenience method for subclasses of Formatter.

The message string is firstly localized using the ResourceBundle object associated with the supplied LogRecord.

Notice : if message contains "{0", then java.text.MessageFormat is used. Otherwise no formatting is performed.

Parameters

r	the log record to be formatted.

Returns

the string resulted from the formatting.

public String getHead (Handler h)

Added in API level 1

Gets the head string used to wrap a set of log records. This base class always returns an empty string.

Parameters

h	the target handler.

Returns

the head string used to wrap a set of log records, empty in this implementation.

public String getTail (Handler h)

Added in API level 1

Gets the tail string used to wrap a set of log records. This base class always returns the empty string.

Parameters

h	the target handler.

Returns

the tail string used to wrap a set of log records, empty in this implementation.

Results

Interfaces

Classes

Class Overview

Summary

Protected Constructors

protected Formatter ()

Public Methods

public abstract String format (LogRecord r)

Parameters

Returns

public String formatMessage (LogRecord r)

Parameters

Returns

public String getHead (Handler h)

Parameters

Returns

public String getTail (Handler h)

Parameters

Returns

java.lang.Object
↳	java.util.logging.Formatter