JAXB 面接の質問と回答
Question: What are the disadvantages/non-goals of JAXB?Answer: • Standardize generated Java– classes generated by different JAXB implementations may not be compatible with each other • Preserve XML equivalence – unmarshalling XML to objects and marshalling back to XML may not result in equivalent XML • Bind existing JavaBeans to schemas – can only marshal and unmarshal classes generated by JAXB – may be added later • Schema evolution support – can’ t modify previously generated code to support schema changes – must generated new code • Allow generated Java to access XML elements/attributes not described in initial schema • Partial binding – unmarshalling only a subset of an XML document breaks round tripping • Implement every feature of the schema language – it’ s tough to implement all of XML Schema! • Support DTDs – focusing on XML Schema – DTDs were supported in an earlier version, but won’ t be anymore – tools for converting DTDs to XML Schemas exist |
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