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Change method target to static

Recipe IDorg.openrewrite.java.ChangeMethodTargetToStatic
Artifactorg.openrewrite:rewrite-java

Change method invocations to static method calls.

Single recipeApache 2.0

Usage

You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.java.ChangeMethodTargetToStatic --recipe-option "methodPattern=com.google.common.collect.ImmutableSet of(..)" --recipe-option "fullyQualifiedTargetTypeName=java.util.Set"

If the recipe isn’t available locally, install it with:

mod config recipes jar install org.openrewrite:rewrite-java:8.88.0

Options

NameTypeDescription
methodPatternrequiredStringThe original method call may or may not be a static method invocation. A method pattern is used to find matching method invocations. For example, to find all method invocations in the Guava library, use the pattern: com.google.common..*#*(..).

The pattern format is <PACKAGE>#<METHOD_NAME>(<ARGS>).

..* includes all subpackages of com.google.common.
*(..) matches any method name with any number of arguments.

For more specific queries, like Guava's ImmutableMap, use com.google.common.collect.ImmutableMap#*(..) to narrow down the results.
e.g. com.google.common.collect.ImmutableSet of(..)
fullyQualifiedTargetTypeNamerequiredStringA fully-qualified class name of the type upon which the static method is defined.
e.g. java.util.Set
returnTypeStringSometimes changing the target type also changes the return type. In the Guava example, changing from ImmutableSet#of(..) to Set#of(..) widens the return type from Guava's ImmutableSet to just java.util.Set.
e.g. java.util.Set
matchOverridesBooleanWhen enabled, find methods that are overrides of the method pattern.
matchUnknownTypesBooleanWhen enabled, include method invocations which appear to match if full type information is missing. Using matchUnknownTypes can improve recipe resiliency for an AST with missing type information, but also increases the risk of false-positive matches on unrelated method invocations.

Data tables

Structured output this recipe can produce.

  • Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
  • Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
  • Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
  • Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats