Importing xsd into wsdl

Question

This is my current configuration   XSD   lt  xml version  1 0  encoding  UTF-8   gt   lt xsd schema xmlns  http   stock com schemas services stock      xmlns tns  http   stock com schemas services stock   xmlns xsd  http   www w3 org 2001 XMLSchema    elementFormDefault  qualified   targetNamespace  http   stock com schemas services stock  gt    lt xsd element name  Stock  gt       lt xsd complexType gt           lt xsd sequence gt               lt xsd element name  ticker  nillable  true  type  xsd string   gt               lt xsd element maxOccurs  unbounded  minOccurs  0  name  quotes  nillable  true  type  Quote   gt           lt  xsd sequence gt       lt  xsd complexType gt   lt  xsd element gt    lt xsd complexType name  Quote  gt                lt  xsd complexType gt           lt xsd element name  gethighBetaStockResponse  gt       lt xsd complexType gt           lt xsd sequence gt               lt xsd element name  stock  ref  Stock  minOccurs  1  maxOccurs  unbounded   gt           lt  xsd sequence gt       lt  xsd complexType gt   lt  xsd element gt    WSDL   lt  xml version  1 0  encoding  UTF-8   gt  lt definitions targetNamespace  http   stock com schemas services stock wsdl           xmlns external  http   stock com schemas services stock   lt import namespace  http   stock com schemas services stock  location  Stock xsd    gt   lt message name  getStockQuoteResp  gt       lt part name  parameters  element  external getStockQuoteResponse    gt   lt  message gt    However the moment ref  Stock  is changed to type  Stock  the wsdl2java starts giving  Type  http   stock com schemas services stock Stock is referenced but not defined   Somehow it seems a clash between wsdl and xsd imports - but I just cant resolve it Help is appreciated

User · Answer

You have a couple of problems here    First  the XSD has an issue where an element is both named or referenced  in your case should be referenced   Change    lt xsd element name  stock  ref  Stock  minOccurs  1  maxOccurs  unbounded   gt     To    lt xsd element name  stock  type  Stock  minOccurs  1  maxOccurs  unbounded   gt     And    Remove the declaration of the global element Stock Create a complex type declaration for a type named Stock   So    lt xsd element name  Stock  gt       lt xsd complexType gt    To    lt xsd complexType name  Stock  gt    Make sure you fix the xml closing tags   The second problem is that the correct way to reference an external XSD is to use XSD schema with import include within a wsdl types element  wsdl import is reserved to referencing other WSDL files  More information is available by going through the WS-I specification  section WSDL and Schema Import  Based on WS-I  your case would be   INCORRECT   the way you showed it    lt  xml version  1 0  encoding  UTF-8   gt   lt definitions targetNamespace  http   stock com schemas services stock wsdl           xmlns external  http   stock com schemas services stock       lt import namespace  http   stock com schemas services stock  location  Stock xsd    gt       lt message name  getStockQuoteResp  gt           lt part name  parameters  element  external getStockQuoteResponse    gt       lt  message gt   lt  definitions gt    CORRECT    lt  xml version  1 0  encoding  UTF-8   gt   lt definitions targetNamespace  http   stock com schemas services stock wsdl           xmlns external  http   stock com schemas services stock       lt types gt           lt schema xmlns  http   www w3 org 2001 XMLSchema  gt               lt import namespace  http   stock com schemas services stock  schemaLocation  Stock xsd    gt                        lt  schema gt       lt  types gt       lt message name  getStockQuoteResp  gt           lt part name  parameters  element  external getStockQuoteResponse    gt       lt  message gt   lt  definitions gt    SOME processors may support both syntaxes  The XSD you put out shows issues  make sure you first validate the XSD   It would be better if you go the WS-I way when it comes to WSDL authoring    Other issues may be related to the use of relative vs  absolute URIs in locating external content

User · Answer

import vs  include  The primary purpose of an import is to import a namespace  A more common use of the XSD import statement is to import a namespace which appears in another file  You might be gathering the namespace information from the file  but don t forget that it s the namespace that you re importing  not the file  don t confuse an import statement with an include statement    Another area of confusion is how to specify the location or path of the included  xsd file  An XSD import statement has an optional attribute named schemaLocation but it is not necessary if the namespace of the import statement is at the same location  in the same file  as the import statement itself   When you do chose to use an external  xsd file for your WSDL  the schemaLocation attribute becomes necessary  Be very sure that the namespace you use in the import statement is the same as the targetNamespace of the schema you are importing  That is  all 3 occurrences must be identical   WSDL   xs import namespace  urn listing3  schemaLocation  listing3 xsd   gt    XSD    lt xsd schema targetNamespace  urn listing3              xmlns xsd  http   www w3 org 2001 XMLSchema  gt     Another approach to letting know the WSDL about the XSD is through Maven s pom xml    lt plugin gt     lt groupId gt org codehaus mojo lt  groupId gt     lt artifactId gt xmlbeans-maven-plugin lt  artifactId gt     lt executions gt       lt execution gt         lt id gt generate-sources-xmlbeans lt  id gt         lt phase gt generate-sources lt  phase gt         lt goals gt       lt goal gt xmlbeans lt  goal gt         lt  goals gt       lt  execution gt     lt  executions gt     lt version gt 2 3 3 lt  version gt     lt inherited gt true lt  inherited gt     lt configuration gt       lt schemaDirectory gt   basedir  src main xsd lt  schemaDirectory gt     lt  configuration gt   lt  plugin gt    You can read more on this in this great IBM article  It has typos such as xsd import instead of xs import but otherwise it s fine

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