Simply override each abstract method in BridgeFactory, and change it to return true or false, as appropriate.
只需覆盖BridgeFactory中的每个抽象方法，并适当地将它改为返回true或false。
The question mark at the end of the method name means that the method is testing for something and will return True or False.
方法名末尾的问号意思是该方法在测试某些东西，并且将返回True或False。
The is validated predicate returns true if the XML document is already validated against any specific schema or against any registered schemas, else it will return false.
如果已经根据特定的模式或任何已注册模式验证了XML文档，IS VALIDATED谓词将返回true，否则返回false。
The is not validated predicate returns true if the XML document is not validated against specified schema or any of the registered schemas, or else it will return false.
如果还没有根据特定的模式或任何已注册模式验证了XML文档，IS NOT VALIDATED谓词将返回true，否则返回false。
The is not validated predicate returns true if the XML document is not validated against specified schema or any of the registered schemas, or else it will return false.
如果还没有根据特定的模式或任何已注册模式验证了XML文档，IS NOT VALIDATED谓词将返回true，否则返回false。
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