Generate only POJOs from OpenAPI definition

Question

I have written an web service definition as an OpenAPI document. The openapi-generator-maven-plugin I'm using always generates a whole project with poms and gradle build scripts, but I only need the pojos and maybe the API client to be generated. It should work equally to JaxB or JaxWS code generators.

So is there a way to tell the plugin to generate the Java-Code only? Maybe there is another plugin which does the job?

Here is my configuration:

<plugin>
    <groupId>org.openapitools</groupId>
    <artifactId>openapi-generator-maven-plugin</artifactId>
    <version>5.1.0</version>
    <executions>
        <execution>
            <goals>
                <goal>generate</goal>
            </goals>
            <configuration>
                <inputSpec>${project.basedir}/src/main/resources/my-api.yaml</inputSpec>
                <modelPackage>com.my.path.to.api</modelPackage>
                <generatorName>java</generatorName>
                <generateApis>false</generateApis>
                <generateModels>true</generateModels>
                <generateModelDocumentation>false</generateModelDocumentation>
                <generateModelTests>false</generateModelTests>
                <library>vertx</library>
                <configOptions>
                    <sourceFolder>src/main/java</sourceFolder>
                    <dateLibrary>java8</dateLibrary>
                </configOptions>
            </configuration>
        </execution>
    </executions>
</plugin>

Nicholas DiPiazza · Accepted Answer · 2023-11-07 19:54:12Z

12

From the docs: https://github.com/OpenAPITools/openapi-generator/tree/master/modules/openapi-generator-maven-plugin

The property you are looking for is:

generateSupportingFiles

Set it to false if you do not want the additional pom.xml, etc project files generated as well.

edited Nov 7, 2023 at 19:54

Nicholas DiPiazza

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answered Apr 8, 2021 at 6:57

Phung Manh Cuong

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1 Comment

xardbaiz Over a year ago

Also it's better to set <generateApis>false</generateApis> if you don't need any controllers

anandbibek · Accepted Answer · 2024-03-06 14:23:27Z

1

In your model project A, allow only model generation.

<generateApis>false</generateApis>
<configOptions>
  <modelPackage>${default.package.model}</modelPackage>
</configOptions>

In your corresponding client/server project B, disable model generation and point the model package name to project A

<generateModels>false</generateModels>
<configOptions>
  <modelPackage>${default.package.model}</modelPackage>
</configOptions>

This is useful when you want to generate multiple server definitions based on different frameworks but want to use the same model underneath.

answered Mar 6, 2024 at 14:23

anandbibek

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