Registry Interface Working Draft Discussion TopicHow should we handle namespace prefixes in ADQL queries?The RI specifies that we use ADQL to pass registry queries; in place of a column name, we use a restricted XPath notation to indicate which element in the schema we wish to search against. Strictly speaking, the elements in the XPath should be qualified with namespace prefixes. Since is ADQL/x is encoded in XML, it is straight-forward to define the prefixes within the XML query; however, this poses 2 problems:
If you have an opinion, question, or comment about this topic, feel free to append your discussion below. Be sure to indicate your name as the author. I prefer choice 3 for the advantages listed above, and I don't think the disadvantage will be a difficult implementation issue. -- RayPlante - 31 Mar 2005 |
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> > | The RI specifies that we use ADQL to pass registry queries; in place of a column name, we use a restricted XPath notation to indicate which element in the schema we wish to search against. Strictly speaking, the elements in the XPath should be qualified with namespace prefixes. Since is ADQL/x is encoded in XML, it is straight-forward to define the prefixes within the XML query; however, this poses 2 problems: | |||||||
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If you have an opinion, question, or comment about this topic, feel free to append your discussion below. Be sure to indicate your name as the author. | ||||||||
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> > | I prefer choice 3 for the advantages listed above, and I don't think the disadvantage will be a difficult implementation issue. | |||||||
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> > | -- RayPlante - 31 Mar 2005 | |||||||
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Registry Interface Working Draft Discussion TopicHow should we handle namespace prefixes in ADQL queries?coming soonIf you have an opinion, question, or comment about this topic, feel free to append your discussion below. Be sure to indicate your name as the author. <--
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