----- Original Message ----- From: "James Strachan" <[EMAIL PROTECTED]> > ----- Original Message ----- > From: "Dmitri Plotnikov" <[EMAIL PROTECTED]> > > Hi, James, Ivelin, > > > > [...snip...] > > > > > In many cases all these options would be equally good to me. > > > Rarely do I need to customize, although when it's needed it must be > there. > > > > > > > > > > > e.g. for a Map > > > > > > > > Map map = new HashMap(); > > > > map.put( "a", "1234" ); > > > > map.put( "b", "5678" ); > > > > > > > > > > > > how should this look as XML? e.g. > > > > > > > ... > > > > Or > > > > > > Dmitri can probably help here, but I understand that the following form > is > > > becoming popular: > > > > > > > > > Map map = myBean.getItem(); > > > map.put( "a", "1234" ); > > > map.put( "b", "5678" ); > > > > > > <item id="a">1234</item> > > > <item id="b">5678</item> > > > > > > which is consistent with arrays: > > > > > > <item id="1">1234</mapName> > > > <item id="2">5678</mapName > > > > > > > > > > And thus the XPath is natural "/mybean/item[@id='a']" > > > > JXPath takes a dual approach to mapping of maps, or "dynamic property > > objects" as they are called in JXPath. > > > > On the one hand, you can use XPaths like "/map/foo", which are natural > when > > you know that the map is really just a more dynamic sister of a JavaBean, > so > > "foo" is really a property of a logical "bean" called "map". A good > example > > of such use is a java.util.Properties object. > > Though this approach only works when the keys of the Map are Strings, the > value of which are valid XML names (no colon, > <, quotes, spaces etc).
FWIW I spotted a SOAP encoding of a Map today in this article... http://www-106.ibm.com/developerworks/library/ws-soapmap1/ which is as follows... <hash xmlns:ns2="http://xml.apache.org/xml-soap"; xsi:type="ns2:Map"> <item> <key xsi:type="xsd:string">2</key> <value xsi:type="xsd:string">two</value> </item> <item> <key xsi:type="xsd:string">1</key> <value xsi:type="xsd:string">one</value> </item> </hash> So using elements for the key and the value can be quite useful as they can hold type information too. A similar approach is used for Lists too. James _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com -- To unsubscribe, e-mail: <mailto:[EMAIL PROTECTED]> For additional commands, e-mail: <mailto:[EMAIL PROTECTED]>
