adapter

I have an adapter (extends BaseAdapter) from which I'm trying to call notifyDataSetChanged(), but it's not working. I believe notifyDataSetChanged() is actually being called, based on stepping into it using the Eclipse debugger. However, it doesn't call getView(). The data underlying my adapter is being changed, as it should. I have a method, updateSettings(), in the adapter that updates the data underlying the adapter. If I call updateSettings() from my ListViewActivity, I don't have any problem...notifyDataSetChanged() behaves as I expect. But when I call updateSettings() from within the

Is it possible to use the Biztalk adapter pack whithout a Biztalk installation (Biztalk license is available)? I want to use the Biztalk Adapter for SAP RFC calls within a .NET Application (as a replacement of the SAP Connector for .NET , which is unfortunately no longer maintened by SAP and I don't can use third party products like " ErpConnect "). Makes this idea sense or not ? This questions can be also seen in conjunction of my question concerning connecting SAP and Microsoft ( Microsoft and SAP ) The adapters in the Biztalk adapter pack are build on the WCF LOB adapter SDK, so it's

I know you can create a custom Adapter extending BaseAdapter and create various layouts which can be inflated depending on which row the AdapterView is at.. But is there any way to get a simple amount of customization with a SimpleCursorAdapter ? Eg. I have a database and I would like to query it and return the results to a ListView with alternating row layouts. Will SimpleCursorAdapter do? Or are there any elegant solutions for this? Cheers But is there any way to get a simple amount of customization with a SimpleCursorAdapter? Just like BaseAdapter, you can extend CursorAdapter or

I have 2 projects: A and B that should interactwith each other. Project A introduce interface names ISpecialTask and Project B should implement it. Projet B has an entity named TaskWithListOfProperties that cannot implement ISpecialTask because it has different structure of properties (in addition, all the system knows how to work with TaskWithListOfProperties and I don't want to change its structure). So I decided to create a class named SpecialTaskFromListOfProperties that implements ISpecialTask and uses TaskWithListOfProperties instance in order to use it for the interaction between the

模式的定义与特点 适配器模式（Adapter）的定义如下：将一个类的接口转换成客户希望的另外一个接口，使得原本由于接口不兼容而不能一起工作的那些类能一起工作。适配器模式分为类结构型模式和对象结构型模式两种，前者类之间的耦合度比后者高，且要求程序员了解现有组件库中的相关组件的内部结构，所以应用相对较少些。 该模式的主要优点如下。 客户端通过适配器可以透明地调用目标接口。 复用了现存的类，程序员不需要修改原有代码而重用现有的适配者类。 将目标类和适配者类解耦，解决了目标类和适配者类接口不一致的问题。 其缺点是：对类适配器来说，更换适配器的实现过程比较复杂。 模式的结构与实现 类适配器模式可采用多重继承方式实现，如 C++ 可定义一个适配器类来同时继承当前系统的业务接口和现有组件库中已经存在的组件接口； Java 不支持多继承，但可以定义一个适配器类来实现当前系统的业务接口，同时又继承现有组件库中已经存在的组件。 对象适配器模式可釆用将现有组件库中已经实现的组件引入适配器类中，该类同时实现当前系统的业务接口。现在来介绍它们的基本结构。 1. 模式的结构 适配器模式（Adapter）包含以下主要角色。 目标（Target）接口：当前系统业务所期待的接口，它可以是抽象类或接口。 适配者（Adaptee）类：它是被访问和适配的现存组件库中的组件接口。 适配器（Adapter）类：它是一个转换器

原文链接： http://www.cnblogs.com/thatsit/p/ci-panio-xing-neng-you-huashi-jian.html RAID卡缓存策略调整 原因详解 操作实例 I/O 调度算法 文件系统journal 磁盘挂载参数 操作实例 性能数据对比 RAID卡缓存策略调整 可以将RAID卡缓存策略由 No Write Cache if bad BBU 调整为 Write Cache OK if bad BBU ，即在电池充放电时不关闭缓存，以此保证I/O性能。但是此法存在数据丢失风险，需要合理评估再做调整。 原因详解 　　服务器的Riad卡都带有可充电电池，这块可充电电池在不使用时也会有微弱的放电现象，当它的电量放电到低到一定程度时，Raid卡控制器就会对电池进行一次“放电”，将剩余的电量放掉，然后再进行一次“充电”。这其实是一种对电池保护机制，以及对Raid卡可用性提供保障的机制。 　　默认情况下，当RAID卡的电池的电量低于某阈值时，RAID卡固件认为此时的电池是不可用的，为了保证数据的安全，会禁用RAID的“缓存”，这种默认的机制本来是合理的，但是当RAID的缓存被禁用之后，RAID的I/O能力会大幅度下降。一般情况下，这个充放电(放电->充电)的时间可能会持续几个小时，对于I/O密集型的应用来说，由此带来的性能下降有可能是致命的

I have a listview with a custom arrayadapter that handles about 15 strings. The style of each row alternates (between labels and values for those labels--for example row 1 could be "email address" and row 2 would be the actual email address). I'm changing the style of each row to alternate like this in the arrayadapter's getView() method. So if the item at the current position is a label, I'll change the styling from the default row style (which is what the values have applied to them). When the listview first loads, the styling is perfect and just how I want it to be. If I scroll the list