using System;
using System.Web;
using System.Collections;

using Zhaizj.Framework.Data;
using Zhaizj.Framework.Caching;

namespace Zhaizj.Framework.Caching {


    /// <summary>
    /// 应用程序范围的缓存(ORM的二级缓存)
    /// </summary>
    public class ApplicationCache : IApplicationCache {

        /// <summary>
        /// 从二级缓存中获取值
        /// </summary>
        /// <param name="key"></param>
        /// <returns></returns>
        public Object Get( String key ) {
            return SysCache.Get( key );
        }

        /// <summary>
        /// 将对象放入二级缓存，如果缓存中已有此项，则替换
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val"></param>
        public void Put( String key, Object val ) {
            SysCache.Put( key, val );
        }

        /// <summary>
        /// 将对象放入缓存，最后一次访问之后的 minutes 分钟内，如果还没有访问，则会过期（弹性过期）
        /// </summary>
        /// <param name="key"></param>
        /// <param name="val"></param>
        /// <param name="minutes"></param>
        public void Put( String key, Object val, int minutes ) {
            SysCache.PutSliding( key, val, minutes * 60 );
        }

        /// <summary>
        /// 从缓存中移除某项
        /// </summary>
        /// <param name="key"></param>
        public void Remove( String key ) {
            SysCache.Remove( key );
        }

    }
}