{"id":610,"date":"2004-12-26T08:26:00","date_gmt":"2004-12-26T12:26:00","guid":{"rendered":"http:\/\/www.markbaker.ca\/wp\/2004\/12\/26\/belated-entry-on-daveo-on-services-and-objects\/"},"modified":"2004-12-26T08:26:00","modified_gmt":"2004-12-26T12:26:00","slug":"belated-entry-on-daveo-on-services-and-objects","status":"publish","type":"post","link":"http:\/\/www.markbaker.ca\/blog\/2004\/12\/belated-entry-on-daveo-on-services-and-objects\/","title":{"rendered":"Belated entry on DaveO on services and objects"},"content":{"rendered":"

I just discovered\nthis article<\/a>\nby David, apparently reprinted from an old\nweblog entry<\/a>\nthat I must have missed while at XML 2004. While I think I’ve\nsaid my piece<\/a>\non the topic of distributed objects vs. services, I wanted to respond to a\ncouple of points in the article …<\/p>\n\n

First, in the “State” section, Dave seems to make the mistake of\nconfusing the different types of state (or at least the different\nlocations<\/em> of state). He says “Web resources that have a URI\nthat are stateless and work with HTTP GET”, which is clearly not the\ncase, since any resource that answers a GET request answers it with a\nrepresentation of their state<\/em>. When you hear “stateless” in the\ncontext of the Web architecture, it’s usually in reference to the protocol,\nnot the resource … though you can, of course, have stateless resources if\nyou want to.<\/p>\n\n

I’m also not sure where he’s going with “on the Web” bit. It’s a cute\nphrase, but doesn’t seem to hold a lot of technical value.<\/p>\n\n

But the next three paragraphs seem to mix the different types of state\nup willy-nilly such that you can’t really make sense of it. The major\ntheme does seem to be about services with state, yet Dave makes reference\nto conversational\/application state mechanisms such as cookies. Perhaps I’m\nmissing something.<\/p>\n\n

Next, in “Network knowledge”, he adds;<\/p>\n\n

\nEffectively, Web services is remote method invokes but with knowledge of the remoteness.\n<\/blockquote>\n\n

I won’t disagree with that, but what the heck happened to document\norientation?! That was the single most significant architectural advancement\nupon RPC that I’d seen come out of the Web services space since it began\n(at least from a service POV – clients were still as\ntightly coupled<\/a>\nto the services they used as with RPC).<\/p>","protected":false},"excerpt":{"rendered":"I just discovered this article by David, apparently reprinted from an old weblog entry that I must have missed while at XML 2004. While I think I’ve said my piece on the topic of distributed objects vs. services, I wanted to respond to a couple of points in the article … First, in the “State” […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[40],"class_list":["post-610","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-xml"],"_links":{"self":[{"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/posts\/610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/comments?post=610"}],"version-history":[{"count":0,"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/posts\/610\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/media?parent=610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/categories?post=610"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.markbaker.ca\/blog\/wp-json\/wp\/v2\/tags?post=610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}