https://www.confluent.io/blog/enabling-exactly-kafka-streams/ https://cwiki.apache.org/confluence/display/KAFKA/KIP-98+-+Exactly+Once+Delivery+and+Transactional+Messaging Exactly Once Delivery and Transactional Messaging in Kafka https://docs.google.…
5.3 对象复制语意学 (Object Copy Semantics) 当设计一个 class,并以一个 class object指定给 class object时,有三种选择: 1.什么都不做,因此得以实施默认行为. 2.提供一个 explicit copy assignment operator. 3.明白地拒绝一个 class object指定给还有一个 class object. 假设要选择第3点,不同意将一个 class object指定给还有一个…
Embodiments discussed in this disclosure provide an integrated provisioning framework that automates the process of provisioning storage resources, end-to-end, for an enterprise storage cloud environment. Such embodiments configure and orchestrate th…
使用EF对建立了关系的表新增记录时出现: An entity object cannot be referenced by multiple instances of IEntityChangeTracker 或一个实体对象不能由多个 IEntityChangeTracker 实例引用 在学习MVC+EF做demo时碰到的一个异常信息.在网上查了些,看得不是很明白,就自己折腾了一会儿. 先上出错的代码: public class CollegeInfo { private StudentMana…
When the Servlet container starts, it: reads web.xml; finds the declared Servlets in the classpath; and loads and instantiates each Servlet only once. Roughly, like this: String urlPattern = parseWebXmlAndRetrieveServletUrlPattern(); String servletCl…
Initializing View Instances Created in Interface Builder View instances that are created in Interface Builder don't call initWithFrame: when their nib files are loaded, which often causes confusion. Remember that Interface Builder archives an object…