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046db19a85
* Add OpenAPI parameter to DefaultCodegen#toDefaultValue(..) * Remove CodegenConfig#fromOperation() * Remove allDefinitions parameter from fromModel(..) * Remove definitions parameter from CodegenConfig#fromOperation(..) * remove schemas parameter from DefaultCodegen#fromRequestBody(..) * remove schemas parameter from DefaultCodegen#fromCallback(..) * Remove openAPI parameter from CodegenConfig#fromModel(..) * Remove openAPI parameter from CodegenConfig#fromOperation(..) * Remove openAPI parameter from DefaultCodegen#fromProperty(..) * Remove openAPI parameter from DefaultCodegen#fromParameter(..) * Remove OpenAPI parameter from several methods * Use ModelUtils.getReferencedParameter(..) * Remove unused variable * Remove openAPI parameter from DefaultCodegen#fromResponse(..) * Remove openAPI parameter from DefaultCodegen#addHeaders(..) * Remove from addConsumesInfo(..)/addProducesInfo(..) * Improve test: add property to prevent Pet from being a free-form object * remove globalSchemas Map<String, Schema> * remove deprecated method: postProcessOperations() * Remove 'Map<String, Schema> allSchemas' from addProperties(..) * Remove 'Map<String, Schema> allDefinitions' from createDiscriminator(..) * Remove 'Map<String, Schema> allSchemas' from unaliasPropertySchema(..) * Rename globalOpenAPI to openAPI * Update documentation * Run “Optimize import” in IntelliJ IDEA
98 lines
4.7 KiB
Plaintext
98 lines
4.7 KiB
Plaintext
== Migration guide between OpenAPI-Generator versions
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This page summaries the important changes between major and minor version of OpenAPI-Generator.
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It does not contain a detailed list of changes, for that refer to each individual release notes.
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This page is written to help migration by indicating the most impacting changes.
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Do not hesitate to contribute additional notes if you discover something during your migration and think that the information might help other users.
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Another approach to find breaking changes is to look at issue and pull requests with following labels:
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* link:https://github.com/OpenAPITools/openapi-generator/labels/Breaking%20change%20%28with%20fallback%29[Breaking change (with fallback)]
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* link:https://github.com/OpenAPITools/openapi-generator/labels/Breaking%20change%20%28without%20fallback%29[Breaking change (without fallback)]
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=== From 3.x to 4.0.0
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Version `4.0.0` is a major release, which contains some breaking changes without fallback.
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==== The `-l` (`--lang`) option has been deleted
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The option is replaced with `-g` (`--generator-name`).
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* `-g` allows the same values as `-l`
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* See `list` command for the list of generator name
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==== Access OpenAPI instance as member and not as parameter
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If you are creating or extending a generator (programmatically), you might have use one of the following parameters: `OpenAPI openAPI` or `Map<String, Schema> allDefinitions` or `Map<String, Schema> allSchemas`. Example methods:
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* `CodegenConfig#fromOperation(String, String, Operation, Map<String, Schema>, OpenAPI)`
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* `CodegenConfig#fromModel(String, Schema, Map<String, Schema>)`
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* `DefaultCodegen#fromResponse(OpenAPI, String, ApiResponse)`
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* `DefaultCodegen#DefaultCodegen.fromRequestBody(RequestBody, Map<String, Schema>, Set<String>, String)`
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* `DefaultCodegen#createDiscriminator(String, Schema, Map<String, Schema>)`
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* ...
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The parameters (`openAPI`, `allDefinitions`, `allSchemas` ...) are now removed from the methods.
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To access the current OpenAPI instance, if you are extending `DefaultCodegen` you can use the protected `openAPI` member.
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If you are creating your own generator by implementing `CodegenConfig`, then the setter `CodegenConfig.setOpenAPI(OpenAPI)` will be called.
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You can keep a reference on the `OpenAPI` instance.
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=== From 3.1.x to 3.2.0
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Version `3.2.0` is a minor version of OpenAPI-Generator, in comparison to `3.1.x` it contains some breaking changes, but with the possibility to fallback to the old behavior.
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The default value of some options might change.
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Projects relying on generated code might need to be adapted.
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==== Validate spec on generation by default
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The default is to validate the spec during generation. If the spec has errors,
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they will appear as errors or warnings to the user. This prevent generation of the project.
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If you want to switch back to the `3.1.x` behavior you can use:
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* Set the `validateSpec` option to `false` if you are using the Maven or Gradle plugin
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* Use the command line option `--skip-validate-spec` if you are using the CLI
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==== Model (all languages)
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In `CodegenModel` and in `CodegenOperation` we use now our own class `org.openapitools.codegen.CodegenDiscriminator` instead of `io.swagger.v3.oas.models.media.Discriminator`.
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For the templates, this is not an API change, because the same values are available.
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If you have your own `Codegen` class (to support your own generator for example) then you might get some compile error due to the change.
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==== Java
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Schema with enum values are mapped to java enum in the generated code.
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In previous version, when an unknown value was deserialized, the value was set to `null`.
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With `3.2.0` a new option is introduced: `useNullForUnknownEnumValue`.
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* When set to `false` (default value), an Exception (`IllegalArgumentException`) is thrown when the value not available in the enum.
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* When set to `true`, unknown values are mapped to `null` as it was the case in previous versions.
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=== From 3.0.x to 3.1.0
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Version `3.1.0` is the first minor version of OpenAPI-Generator, in comparison to `3.0.3` it contains some breaking changes, but with the possibility to fallback to the old behavior.
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The default value of some options might change.
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Projects relying on generated code might need to be adapted.
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==== Java
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A new option is introduced with link:https://github.com/OpenAPITools/openapi-generator/pull/432[#432] to specify the prefix of boolean getters: `booleanGetterPrefix`.
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Possible values:
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* `is`: the value used in `3.0.x`.
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* `get`: the new default value.
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If you use the default value you will see your generated code changing from `isActive()` to `getActive()`.
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=== Migrating from Swagger-Codegen
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Please read the specific migration guide: link:migration-from-swagger-codegen.md[From Swagger-Codegen to OpenAPI-Generator]
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