public  void afterPropertiesSet() 
{
        if (this.log == null) {
            throw new IllegalArgumentException("logName is required");
        }
}

 public Object getObject() 
{
        return log;
}

 public Class getObjectType() 
{
        return (this.log != null ? this.log.getClass() : Log.class);
}

 public boolean isSingleton() 
{
        return true;
}

 public  void setLogName(String logName) 
{
        this.log = LogFactory.getLog(logName);
}

The name of the log.

This property is required.