Jibx Maven plugin: cross-reference among schemas when they are converted in different build executions

问题

I use the jibx Maven plugin to convert some xsds to Java source codes. In a schema A, there is a reference to a type defined in a schema B. Before, I used this pom.xml configuration and everything worked fine:

<plugin>
    <groupId>org.jibx</groupId>
    <artifactId>jibx-maven-plugin</artifactId>
    <version>1.2.3</version>
    <configuration>
        <schemaLocation>${basedir}/resources/oxm/schemas</schemaLocation>
        <schemaBindingDirectory>${basedir}/src/java</schemaBindingDirectory>
        <includeSchemas>
            <includeSchema>schemaA.xsd</includeSchema>
            <includeSchema>schemaB.xsd</includeSchema>
            <includeSchema>schemaC.xsd</includeSchema>
        </includeSchemas>
        <verbose>true</verbose>
     </configuration>
 </plugin>

The input schema A is something like:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="myApp.com/schema/schemaA"targetNamespace="http://myApp.com/schema/schemaA" xmlns:rsType="http://myApp.com/schema/schemaB">
<xs:import schemaLocation="schemaB.xsd" namespace="http://myApp.com/schema/schemaB" />
<xs:complexType name="classAType">
    <xs:sequence>
        <xs:element name="objB" type="rsType:classBType" />
    </xs:sequence>
    <xs:attribute name="foo" type="xs:int" />
 </xs:complexType>

Input schema B has similar code with definition of classBType.

The former Java source output was something like:

class classA
{
    classB objB;
    int foo;
}

Recently, I separated the conversion of schemas in different build executions in the pom.xml to be able to define different target package for them. My new pom.xml is:

<plugin>
    <groupId>org.jibx</groupId>
    <artifactId>jibx-maven-plugin</artifactId>
    <version>1.2.3</version>
    <configuration>
        <schemaLocation>${basedir}/resources/oxm/schemas</schemaLocation>
        <schemaBindingDirectory>${basedir}/src/java</schemaBindingDirectory>
        <verbose>true</verbose>
     </configuration>
     <executions>
         <execution>
             <id>schemaCodegenA</id>
             <goals>
                 <goal>schema-codegen</goal>
             </goals>
             <configuration>
                 <includeSchemas>
                     <includeSchema>schemaA.xsd</includeSchema>
                  </includeSchemas>
                  <options>
                      <package>com.myApp.jibxgenerated.schema.resource</package>
                  </options>
              </configuration>
          </execution>

(... one execution for each set of schemas)

The Java source output now is:

class classA
{
    // all properties of class B here
    int classBattrib1;
    int classBattrib2;
    int classBattribN;
    int foo;
}

Is this the expected behavior? I want to have the classB reference back in the class A source code, is there any way to achieve this?

Thanks in advance for any help.

回答1:

user1550682,

Actually JiBX handles this case pretty easily. You can package each schema in a separate jar and easily reference a sub-module using the maven plugin.

Take a look at the instructions for modular schema here: http://jibx.sourceforge.net/maven-jibx-plugin/modular-codegen.html

and take a look at the example code in github here: https://github.com/jibx/maven-plugin/tree/master/test-suite/base-binding-test

This example uses three simple schema: company -> address -> person. and had a simple test that marshalls and unmarshalls some xml.

I hope this helps!

Don

来源：https://stackoverflow.com/questions/11909972/jibx-maven-plugin-cross-reference-among-schemas-when-they-are-converted-in-diff