using System;
using System.Collections;
using System.Collections.Generic;

using Zhaizj.Framework.ORM;

namespace Zhaizj.Framework.Data {

    /// <summary>
    /// 缓存对象，常驻内存，同时以json格式存储在磁盘中
    /// </summary>
    [Serializable]
    public class CacheObject {

        private int _id;
        private String _name;

        /// <summary>
        /// 对象的 id
        /// </summary>
        public int Id {
            get { return _id; }
            set { _id = value; }
        }

        /// <summary>
        /// 对象名称
        /// </summary>
        public String Name {
            get { return _name; }
            set { _name = value; }
        }

        /// <summary>
        /// 根据 id 检索对象
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public CacheObject findById( int id ) {
            return MemoryDB.FindById( this.GetType(), id );
        }

        /// <summary>
        /// 检索出所有对象
        /// </summary>
        /// <returns></returns>
        public IList findAll() {
            return MemoryDB.FindAll( this.GetType() );
        }

        /// <summary>
        /// 根据名称检索出对象列表
        /// </summary>
        /// <param name="name"></param>
        /// <returns></returns>
        public IList findByName( String name ) {
            return this.findBy( "Name", name );
        }

        /// <summary>
        /// 根据属性名，检索出对象
        /// </summary>
        /// <param name="propertyName"></param>
        /// <param name="val"></param>
        /// <returns></returns>
        public IList findBy( String propertyName, Object val ) {
            findAll();
            return MemoryDB.FindBy( this.GetType(), propertyName, val );
        }


        /// <summary>
        /// 插入数据：并对所有属性做索引，速度较慢
        /// </summary>
        public void insert() {
            MemoryDB.Insert( this );
        }

        /// <summary>
        /// 插入数据：只针对特定属性做索引，提高速度
        /// </summary>
        /// <param name="propertyName"></param>
        /// <param name="pValue"></param>
        public void insertByIndex( String propertyName, Object pValue ) {
            MemoryDB.InsertByIndex( this, propertyName, pValue );
        }

        /// <summary>
        /// 插入数据：针对若干属性做索引
        /// </summary>
        /// <param name="dic"></param>
        public void insertByIndex( Dictionary<String, Object> dic ) {
            MemoryDB.InsertByIndex( this, dic );
        }

        /// <summary>
        /// 更新数据
        /// </summary>
        /// <returns></returns>
        public Result update() {
            return MemoryDB.Update( this );
        }

        /// <summary>
        /// 更新数据：只针对特性数据做索引
        /// </summary>
        /// <param name="dic"></param>
        public void updateByIndex( Dictionary<String, Object> dic ) {
            MemoryDB.updateByIndex( this, dic );
        }

        /// <summary>
        ///  不持久化，也不做索引
        /// </summary>
        /// <returns></returns>
        public Result updateNoIndex() {
            return new Result();
        }

        /// <summary>
        /// 删除数据
        /// </summary>
        public void delete() {
            MemoryDB.Delete( this );
        }

    }
}