Red Hat Summit Red Hat SummitSupportConsoleDéveloppeursCommencer un essaiContact

Ce contenu n'est pas disponible dans la langue sélectionnée.

Chapter 32. Basic Data Binding Concepts

Abstract

There are a number of general topics that apply to how Apache CXF handles type mapping.

32.1. Including and Importing Schema Definitions
Copier lien

Overview
Copier lien

Apache CXF supports the including and importing of schema definitions, using the include and import schema tags. These tags enable you to insert definitions from external files or resources into the scope of a schema element. The essential difference between including and importing is:
  • Including brings in definitions that belong to the same target namespace as the enclosing schema element.
  • Importing brings in definitions that belong to a different target namespace from the enclosing schema element.

xsd:include syntax
Copier lien

The include directive has the following syntax: 
<include schemaLocation="anyURI" />
The referenced schema, given by anyURI, must either belong to the same target namespace as the enclosing schema, or not belong to any target namespace at all. If the referenced schema does not belong to any target namespace, it is automatically adopted into the enclosing schema’s namespace when it is included.
Example 32.1, “Example of a Schema that Includes Another Schema” shows an example of an XML Schema document that includes another XML Schema document.

Example 32.1. Example of a Schema that Includes Another Schema

<definitions targetNamespace="http://schemas.redhat.com/tests/schema_parser"
             xmlns:tns="http://schemas.redhat.com/tests/schema_parser"
             xmlns:xsd="http://www.w3.org/2001/XMLSchema"
             xmlns="http://schemas.xmlsoap.org/wsdl/">
  <types>
    <schema targetNamespace="http://schemas.redhat.com/tests/schema_parser"
            xmlns="http://www.w3.org/2001/XMLSchema">
      <include schemaLocation="included.xsd"/>
      <complexType name="IncludingSequence">
        <sequence>
          <element name="includedSeq" type="tns:IncludedSequence"/>
        </sequence>
      </complexType>
    </schema>
  </types>
  ...
</definitions>
Example 32.2, “Example of an Included Schema” shows the contents of the included schema file.

Example 32.2. Example of an Included Schema

<schema targetNamespace="http://schemas.redhat.com/tests/schema_parser"
        xmlns="http://www.w3.org/2001/XMLSchema">
  <!-- Included type definitions -->
  <complexType name="IncludedSequence">
    <sequence>
      <element name="varInt" type="int"/>
      <element name="varString" type="string"/>
    </sequence>
  </complexType>
</schema>

xsd:import syntax
Copier lien

The import directive has the following syntax: 
<import namespace="namespaceAnyURI"
        schemaLocation="schemaAnyURI" />
The imported definitions must belong to the namespaceAnyURI target namespace. If namespaceAnyURI is blank or remains unspecified, the imported schema definitions are unqualified.
Example 32.3, “Example of a Schema that Imports Another Schema” shows an example of an XML Schema that imports another XML Schema.

Example 32.3. Example of a Schema that Imports Another Schema

<definitions targetNamespace="http://schemas.redhat.com/tests/schema_parser"
             xmlns:tns="http://schemas.redhat.com/tests/schema_parser"
             xmlns:imp="http://schemas.redhat.com/tests/imported_types"
             xmlns:xsd="http://www.w3.org/2001/XMLSchema"
             xmlns="http://schemas.xmlsoap.org/wsdl/">
  <types>
    <schema targetNamespace="http://schemas.redhat.com/tests/schema_parser"
            xmlns="http://www.w3.org/2001/XMLSchema">
      <import namespace="http://schemas.redhat.com/tests/imported_types"
              schemaLocation="included.xsd"/>
      <complexType name="IncludingSequence">
        <sequence>
          <element name="includedSeq" type="imp:IncludedSequence"/>
        </sequence>
      </complexType>
    </schema>
  </types>
  ...
</definitions>
Example 32.4, “Example of an Imported Schema” shows the contents of the imported schema file.

Example 32.4. Example of an Imported Schema

<schema targetNamespace="http://schemas.redhat.com/tests/imported_types"
        xmlns="http://www.w3.org/2001/XMLSchema">
  <!-- Included type definitions -->
  <complexType name="IncludedSequence">
    <sequence>
      <element name="varInt" type="int"/>
      <element name="varString" type="string"/>
    </sequence>
  </complexType>
</schema>

Using non-referenced schema documents
Copier lien

Using types defined in a schema document that is not referenced in the service's WSDL document is a three step process:
  1. Convert the schema document to a WSDL document using the xsd2wsdl tool.
  2. Generate Java for the types using the wsdl2java tool on the generated WSDL document.
    Important
    You will get a warning from the wsdl2java tool stating that the WSDL document does not define any services. You can ignore this warning.
  3. Add the generated classes to your classpath.
Red Hat logoGithubredditYoutubeTwitter

Apprendre

Essayez, achetez et vendez

Communautés

À propos de la documentation Red Hat

Nous aidons les utilisateurs de Red Hat à innover et à atteindre leurs objectifs grâce à nos produits et services avec un contenu auquel ils peuvent faire confiance. Découvrez nos récentes mises à jour.

Rendre l’open source plus inclusif

Red Hat s'engage à remplacer le langage problématique dans notre code, notre documentation et nos propriétés Web. Pour plus de détails, consultez le Blog Red Hat.

À propos de Red Hat

Nous proposons des solutions renforcées qui facilitent le travail des entreprises sur plusieurs plates-formes et environnements, du centre de données central à la périphérie du réseau.

Theme

© 2026 Red HatRetour au début