xml - xsd:unique with optional attributes -


i have xml file:

<objects>   <object name="id1" />   <object name="id2" />   <object name="id2" color="green" />   <object name="id3" color="green" /> <objects>

i validate against xsd schema, combination between name , color unique in document.

the problem that, if use:

<xs:unique name="uniqueobjectnamecolor">   <xs:selector xpath="./object" />   <xs:field xpath="@name" />   <xs:field xpath="@color" /> </xs:unique>

... rule ignore object elements without optional color attribute. following validates correctly while shouldn't.

  <object name="id2" />   <object name="id2" />

can tell me how can specify rule enforces unique name , color combinations and, when color attribute not present in element object, checks name?

use use , default or without value like: 

    <element name="objects">         <complextype>             <sequence>                 <element name="object" maxoccurs="unbounded">                     <complextype>                         <attribute name="name" type="string" />                         <attribute name="color" type="string" use="optional" default="nocolor" />                     </complextype>                 </element>             </sequence>         </complextype>         <unique name="uniqueobjectnamecolor">             <selector xpath="tns:object" />             <field xpath="@name" />             <field xpath="@color" />         </unique>     </element>  </schema>

Comments

Post a Comment

Popular posts from this blog

asp.net - repeatedly call AddImageUrl(url) to assemble pdf document -

i'm using abcpdf , i'm curious if can recursively call addimageurl() function assemble pdf document compile multiple urls? something like: int pagecount = 0; int theid = thedoc.addimageurl("http://stackoverflow.com/search?q=abcpdf+footer+page+x+out+of+", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetochain(theid); } pagecount = thedoc.pagecount; console.writeline("1 document page count:" + pagecount); //flatten document (int = 1; <= pagecount; i++) { thedoc.pagenumber = i; thedoc.flatten(); } //now try again theid = thedoc.addimageurl("http://stackoverflow.com/questions/1980890/pdf-report-generation", true, 0, true); //assemble document while (thedoc.chainable(theid)) { thedoc.page = thedoc.addpage(); theid = thedoc.addimagetoc
Read more

java - Android recognize cell phone with keyboard or not? -

in android app, want detect user's device if device has keyboard(like motorola milestone) , show corresponding user interface. guys know how that? ! regards justicepenny http://developer.android.com/reference/android/content/res/configuration.html public int keyboard the kind of keyboard attached device. 1 of: keyboard_nokeys, keyboard_qwerty, keyboard_12key. that's it!
Read more

iphone - How would you achieve a LED Scrolling effect? -

how achieve led scrolling effect example below? led sign - led ticker emulator iphone , ipad http://img.skitch.com/20101201-rsfh4p1bajb1wp94k466pdpiuj.preview.jpg sometimes remunerates comment in other posts :) have put code you, should implement font '8pin matrix' realistic feeling. uilabel *label; - (void)viewdidload { [super viewdidload]; label = [[uilabel alloc]initwithframe:cgrectmake(10, 50, 300, 20)]; label.font = [uifont fontwithname:@"courier-bold" size:16.0]; label.backgroundcolor = [uicolor blackcolor]; label.textcolor = [uicolor greencolor]; label.linebreakmode = uilinebreakmodecharacterwrap; // otherwise "…" label.text = @"this led text scrolled "; // blanks space between [self.view addsubview:label]; [nstimer scheduledtimerwithtimeinterval:0.12f target:self selector:@selector(scrolllabel) use
Read more