Copyright (c) 2004-2011 QOS.ch
All rights reserved.
Permission is hereby granted, free  of charge, to any person obtaining
a  copy  of this  software  and  associated  documentation files  (the
"Software"), to  deal in  the Software without  restriction, including
without limitation  the rights to  use, copy, modify,  merge, publish,
distribute,  sublicense, and/or sell  copies of  the Software,  and to
permit persons to whom the Software  is furnished to do so, subject to
the following conditions:
The  above  copyright  notice  and  this permission  notice  shall  be
included in all copies or substantial portions of the Software.
THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
/**
 * Copyright (c) 2004-2011 QOS.ch
 * All rights reserved.
 *
 * Permission is hereby granted, free  of charge, to any person obtaining
 * a  copy  of this  software  and  associated  documentation files  (the
 * "Software"), to  deal in  the Software without  restriction, including
 * without limitation  the rights to  use, copy, modify,  merge, publish,
 * distribute,  sublicense, and/or sell  copies of  the Software,  and to
 * permit persons to whom the Software  is furnished to do so, subject to
 * the following conditions:
 *
 * The  above  copyright  notice  and  this permission  notice  shall  be
 * included in all copies or substantial portions of the Software.
 *
 * THE  SOFTWARE IS  PROVIDED  "AS  IS", WITHOUT  WARRANTY  OF ANY  KIND,
 * EXPRESS OR  IMPLIED, INCLUDING  BUT NOT LIMITED  TO THE  WARRANTIES OF
 * MERCHANTABILITY,    FITNESS    FOR    A   PARTICULAR    PURPOSE    AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE,  ARISING FROM, OUT OF OR IN CONNECTION
 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 */
package org.slf4j.helpers;

import org.slf4j.Logger;
import org.slf4j.helpers.MarkerIgnoringBase;

A direct NOP (no operation) implementation of Logger. 
Author:
Ceki Gülcü/**
 * A direct NOP (no operation) implementation of {@link Logger}.
 *
 * @author Ceki Gülcü
 */
public class NOPLogger extends MarkerIgnoringBase {

    private static final long serialVersionUID = -517220405410904473L;

    
The unique instance of NOPLogger.
/**
     * The unique instance of NOPLogger.
     */
    public static final NOPLogger NOP_LOGGER = new NOPLogger();

    
There is no point in creating multiple instances of NOPLogger,
except by derived classes, hence the protected  access for the constructor.
/**
     * There is no point in creating multiple instances of NOPLogger,
     * except by derived classes, hence the protected  access for the constructor.
     */
    protected NOPLogger() {
    }

    
Always returns the string value "NOP".
/**
     * Always returns the string value "NOP".
     */
    public String getName() {
        return "NOP";
    }

    
Always returns false.
Returns:
always false/**
     * Always returns false.
     * @return always false
     */
    final public boolean isTraceEnabled() {
        return false;
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void trace(String msg) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    final public void trace(String format, Object arg) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void trace(String format, Object arg1, Object arg2) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void trace(String format, Object... argArray) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void trace(String msg, Throwable t) {
        // NOP
    }

    
Always returns false.
Returns:
always false/**
     * Always returns false.
     * @return always false
     */
    final public boolean isDebugEnabled() {
        return false;
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void debug(String msg) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    final public void debug(String format, Object arg) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void debug(String format, Object arg1, Object arg2) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void debug(String format, Object... argArray) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void debug(String msg, Throwable t) {
        // NOP
    }

    
Always returns false.
Returns:
always false/**
     * Always returns false.
     * @return always false
     */
    final public boolean isInfoEnabled() {
        // NOP
        return false;
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void info(String msg) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void info(String format, Object arg1) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void info(String format, Object arg1, Object arg2) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void info(String format, Object... argArray) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void info(String msg, Throwable t) {
        // NOP
    }

    
Always returns false.
Returns:
always false/**
     * Always returns false.
     * @return always false
     */
    final public boolean isWarnEnabled() {
        return false;
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void warn(String msg) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void warn(String format, Object arg1) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void warn(String format, Object arg1, Object arg2) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void warn(String format, Object... argArray) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void warn(String msg, Throwable t) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public boolean isErrorEnabled() {
        return false;
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void error(String msg) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void error(String format, Object arg1) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void error(String format, Object arg1, Object arg2) {
        // NOP
    }

    
A NOP implementation.  /** A NOP implementation.  */
    public final void error(String format, Object... argArray) {
        // NOP
    }

    
A NOP implementation. /** A NOP implementation. */
    final public void error(String msg, Throwable t) {
        // NOP
    }
}