/// <summary>
/// 缓存键值操作。
/// </summary>
/// <param name="cache">缓存对象。</param>
/// <param name="builder">select命令构造器。</param>
/// <param name="tag">标记。</param>
/// <param name="type">类型。</param>
/// <param name="func">缓存求值委托。</param>
/// <returns>返回</returns>
protected virtual object CacheFunc(IDataBinderObjectCache cache, Symbol.Data.ISelectCommandBuilder builder, string tag, Type type, CacheValueFunc func)
{
if (cache != null && AllowCache)
{
object value;
string key = BuildCacheKey(builder, tag, type);
if (!cache.Get(key, out value))
{
value = func();
cache.Set(key, value);
}
return(value);
}
else
{
return(func());
}
}
/// <summary>
/// 缓存键值操作。
/// </summary>
/// <param name="cache">缓存对象。</param>
/// <param name="entity">当前实体对象。</param>
/// <param name="field">当前字段。</param>
/// <param name="func">缓存求值委托。</param>
/// <returns>返回</returns>
protected virtual object CacheFunc(IDataBinderObjectCache cache, object entity, string field, CacheValueFunc func)
{
if (cache != null && AllowCache)
{
object value;
if (!cache.Get(entity, field, out value))
{
value = func();
cache.Set(entity, field, value);
}
return(value);
}
else
{
return(func());
}
}
