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Change supertype

io.moderne.java.dropwizard.boot.method.ChangeSuperType

Changes the supertype of a class, optionally converting from extends to implements.

Recipe source​

This recipe is only available to users of Moderne.

This recipe is available under the Moderne Proprietary License.

Options​

TypeNameDescriptionExample
StringtargetClassThe fully qualified name of the class whose superclass should be changed.com.myorg.MyClass
StringnewSuperclassThe fully qualified name of the new superclass to extend or interface to implement.com.myorg.NewSuperclass
BooleankeepTypeParametersOptional. Whether to keep existing type parameters on the target class declaration.
BooleanconvertToInterfaceOptional. If the new supertype is an interface, setting this to true converts 'extends' to 'implements'.
BooleanremoveUnnecessaryOverridesOptional. Remove method Override annotations that override methods from the old superclass but are no longer necessary with the new superclass.

Used by​

This recipe is used as part of the following composite recipes:

Example​

Parameters​
ParameterValue
targetClassjava.util.Vector
newSuperclassjava.util.ArrayList
keepTypeParametersfalse
convertToInterfacefalse
removeUnnecessaryOverridesfalse
Before​
package org.example;

public class Child extends java.util.Vector<String> {
    public void someMethod() {
        this.add("test");
    }
}
After​
package org.example;

import java.util.ArrayList;

public class Child extends ArrayList {
    public void someMethod() {
        this.add("test");
    }
}

Usage​

This recipe has required configuration parameters and can only be run by users of Moderne. To run this recipe, you will need to provide the Moderne CLI run command with the required options. Or, if you'd like to create a declarative recipe, please see the below example of a rewrite.yml file:

rewrite.yml
---
type: specs.openrewrite.org/v1beta/recipe
name: com.yourorg.ChangeSuperTypeExample
displayName: Change supertype example
recipeList:
  - io.moderne.java.dropwizard.boot.method.ChangeSuperType:
      targetClass: com.myorg.MyClass
      newSuperclass: com.myorg.NewSuperclass

You will need to have configured the Moderne CLI on your machine before you can run the following command.

shell
mod run . --recipe ChangeSuperType --recipe-option "targetClass=com.myorg.MyClass" --recipe-option "newSuperclass=com.myorg.NewSuperclass"

If the recipe is not available locally, then you can install it using:

mod config recipes jar install io.moderne.recipe:rewrite-dropwizard:0.2.0

See how this recipe works across multiple open-source repositories​

Run this recipe on OSS repos at scale with the Moderne SaaS.

The community edition of the Moderne platform enables you to easily run recipes across thousands of open-source repositories.

Please contact Moderne for more information about safely running the recipes on your own codebase in a private SaaS.

Data Tables​

Source files that had results​

org.openrewrite.table.SourcesFileResults

Source files that were modified by the recipe run.

Column NameDescription
Source path before the runThe source path of the file before the run. null when a source file was created during the run.
Source path after the runA recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Parent of the recipe that made changesIn a hierarchical recipe, the parent of the recipe that made a change. Empty if this is the root of a hierarchy or if the recipe is not hierarchical at all.
Recipe that made changesThe specific recipe that made a change.
Estimated time savingAn estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds.
CycleThe recipe cycle in which the change was made.