import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
@Override
public int priority() {
    return CallbackPriority.MEDIUM;
}
 

import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
@Override
public int priority() {
    return CallbackPriority.CRITICAL;
}
 

import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
@Override
public int priority() {
    return CallbackPriority.HIGH;
}
 

import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
@Override
public int priority() {
    return CallbackPriority.LOW;
}
 

import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
@Override
public int priority() {
    return CallbackPriority.VERY_LOW;
}
 

import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
/**
 * The priority is used when more than one OnConnectCallback is implemented to determine the order.
 * If there is only one callback, which implements a certain interface, the priority has no effect.
 *
 * @return callback priority
 */
@Override
public int priority() {
    return CallbackPriority.MEDIUM;
}
 

import com.hivemq.spi.callback.CallbackPriority; //导入依赖的package包/类
/**
 * Priority of the callback implementation.
 * This is important if more than one {@link OnAuthenticationCallback} implementations is available.
 *
 * @return priority.
 */
@Override
public int priority() {
    return CallbackPriority.HIGH;
}