您可以在该模式的其他部分和会导入该模式的父模式中引用zipCode元素。
You can reference the zipCode element in other parts of this schema and in parent schemas that might import this schema.
这一步是必需的，因为使用重定义时只能重定义与父模式(重定义模式)名称空间相同的模式中的元素。
This step is required because when you use redefine, it allows you to only redefine schema elements from a schema with the same namespace as the parent (redefining) schema.
Spark具体类并不象大多数继承模式中的类那样仅仅重新定义或添加特定的方法，而是具有两种特性(一般的模式与各阶段和各种父模式都一样)。
Rather than merely redefining or adding specific methods as in most inheritance patterns, Spark concrete classes have two features (the general pattern is common to the stages and various parents).
您需要注意的是，不要通过替换每个与模式相匹配的文本节点来测试它是否是该父元素中的第一个文本节点。
You have to be careful not to replace every text node that matches the pattern, so test whether it's the first text node in that parent.
该函数以行posplus1的全局位置的bigint值为参数并进行转换，同时使父行的pos模式成为下一行的模式。
The function will take in the BIGINT value of the global position of the row posplus1 and translate this, given the pattern pos of the parent into the pattern for the next row.
总是使抽象父类实现一个接口。模板方法设计模式在框架设计中特别有价值(在这章的结尾讨论了)。
Always make the abstract parent class implement an interface. The Template Method design pattern is especially valuable in framework design (discussed towards the end of this chapter).
XML模式：只有在每个父节点的子节点的属性值的唯一性？
XML Schema: uniqueness of sub node attribute values ONLY within EACH parent node?
张承志的“寻父”意识是一种“拟血缘认同感”，在这种认同感的驱使下，张承志在小说中构建了大量的拟父子模式。
Driven by the feeling, Zhang Cheng-zi has constructed lots of simulated father-son modes in his novels.
张承志的“寻父”意识是一种“拟血缘认同感”，在这种认同感的驱使下，张承志在小说中构建了大量的拟父子模式。
Driven by the feeling, Zhang Cheng-zi has constructed lots of simulated father-son modes in his novels.
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