appenderattachable.h

功能非常强的写日志程序

/*
 * Copyright 2003,2004 The Apache Software Foundation.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#ifndef _LOG4CXX_SPI_APPENDER_ATTACHABLE_H_
#define _LOG4CXX_SPI_APPENDER_ATTACHABLE_H_

#include <log4cxx/helpers/tchar.h>
#include <vector>
#include <log4cxx/helpers/objectptr.h>
#include <log4cxx/helpers/object.h>
#include <log4cxx/appender.h>

namespace log4cxx
{
    // Forward Declarations
    class Appender;
    typedef helpers::ObjectPtrT<Appender> AppenderPtr;
    typedef std::vector<AppenderPtr> AppenderList;

    namespace spi
    {
		class AppenderAttachable;
		typedef helpers::ObjectPtrT<AppenderAttachable> AppenderAttachablePtr;

        /**
         * This Interface is for attaching Appenders to objects.
         */
        class LOG4CXX_EXPORT AppenderAttachable : public virtual helpers::Object
        {
        public:
          // Methods
			DECLARE_ABSTRACT_LOG4CXX_OBJECT(AppenderAttachable)
            /**
             * Add an appender.
             */
            virtual void addAppender(const AppenderPtr& newAppender) = 0;

            /**
             * Get all previously added appenders as an AppenderList.
             */
            virtual AppenderList getAllAppenders() const = 0;

            /**
             * Get an appender by name.
             */
            virtual AppenderPtr getAppender(const String& name) const = 0;

            /**
			Returns <code>true</code> if the specified appender is in list of
			attached attached, <code>false</code> otherwise.
			*/
			virtual bool isAttached(const AppenderPtr& appender) const = 0;

            /**
             * Remove all previously added appenders.
             */
            virtual void removeAllAppenders() = 0;

            /**
             * Remove the appender passed as parameter from the list of appenders.
             */
            virtual void removeAppender(const AppenderPtr& appender) = 0;

            /**
             * Remove the appender with the name passed as parameter from the
             * list of appenders.
             */
            virtual void removeAppender(const String& name) = 0;

          // Dtor
            virtual ~AppenderAttachable(){}
        };
    } 
} 

#endif //_LOG4CXX_SPI_APPENDER_ATTACHABLE_H_