Ignore:
Timestamp:
Mar 9, 2012, 1:35:34 AM (8 years ago)
Author:
fielding@…
Message:

#330 ETag and Last-Modified are metadata for the selected representation,
which is not always the same as the representation enclosed in the response.
Define those terms from p4 and use a separate table to referenve the fields.

File:
1 edited

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  • draft-ietf-httpbis/latest/p3-payload.xml

    r1567 r1571  
    2626  <!ENTITY header-content-length    "<xref target='Part1' x:rel='#header.content-length' xmlns:x='http://purl.org/net/xml2rfc/ext'/>">
    2727  <!ENTITY header-content-range     "<xref target='Part5' x:rel='#header.content-range' xmlns:x='http://purl.org/net/xml2rfc/ext'/>">
     28  <!ENTITY header-etag              "<xref target='Part4' x:rel='#header.etag' xmlns:x='http://purl.org/net/xml2rfc/ext'/>">
    2829  <!ENTITY header-expires           "<xref target='Part6' x:rel='#header.expires' xmlns:x='http://purl.org/net/xml2rfc/ext'/>">
    2930  <!ENTITY header-last-modified     "<xref target='Part4' x:rel='#header.last-modified' xmlns:x='http://purl.org/net/xml2rfc/ext'/>">
     
    269270  </list>
    270271</t>
     272<t>
     273  <iref primary="true" item="selected representation"/>
     274  <x:dfn>selected representation</x:dfn>
     275  <list>
     276    <t>
     277      The current representation of the target resource that would have been
     278      selected in a successful response if the same request had used the
     279      method GET and excluded any conditional request header fields.
     280    </t>
     281  </list>
     282</t>
    271283</section>
    272284
     
    709721  <c>Content-Type</c> <c><xref target="header.content-type"/></c>
    710722  <c>Expires</c> <c>&header-expires;</c>
     723</texttable>
     724<t>
     725   Additional header fields define metadata about the selected
     726   representation, which might differ from the representation included
     727   in the message for responses to some state-changing methods.
     728   The following header fields are defined as selected representation
     729   metadata:
     730</t>
     731<texttable align="left">
     732  <ttcol>Header Field Name</ttcol>
     733  <ttcol>Defined in...</ttcol>
     734
     735  <c>ETag</c> <c>&header-etag;</c>
    711736  <c>Last-Modified</c> <c>&header-last-modified;</c>
    712737</texttable>
     
    14001425   more specific, identifier.  For a GET or HEAD request, this is an
    14011426   indication that the effective request URI identifies a resource that
    1402    is subject to content negotiation and the representation selected for
     1427   is subject to content negotiation and the selected representation for
    14031428   this response can also be found at the identified URI.  For other
    14041429   methods, such a Content-Location indicates that this representation
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