Is it an expensive operation to create Ext.data.Store objects, because I quite often create stores just for retrieving data once.
这将取决于你检索的数据数量以及你在应用中如何使用这些数据。
你们需要用一次以上的数据来权衡间接费用,把数据放在网页上并使用用户。
Using stores just to retrieve data once isn t a problem really as the store is just a client side d collection of data. There isn t really much weight to them.
或许还值得了解的是,如果你重新使用ExtJS4,并再次谈论检索单一数据项目,而不是收集物品,那么你就可以形成一种单一模式,与这种模式而不是一个仓库进行互动,而这是一个更轻松的解决办法。
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