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Find Java constructor field assignments

Recipe IDio.moderne.prethink.FindJavaConstructorFieldAssignments

Artifactio.moderne.recipe:rewrite-prethink

Report written immediate constructor-body assignments from an explicit formal parameter to an owned non-static field. Retain actual original-model constructor, parameter, field-reference and assignment identities and source ranges. Named nested/local constructors retain their own identities; eligible direct writes after delegation remain source facts. Source facts only; no property evaluation, delegation propagation, runtime injection or execution inference.

Single recipeOpenRewriteModerne Proprietary License

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Usage

Run this recipe

This recipe has no required configuration options. Users of Moderne can run it via the Moderne CLI.

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

shell

mod run . --recipe FindJavaConstructorFieldAssignments

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

RELEASE resolves to the newest release and LATEST to the newest build of any kind, including snapshots. Either one lets mod config recipes upgrade pull in later versions without editing this command; a pinned version stays where you put it.

RELEASE

mod config recipes jar install io.moderne.recipe:rewrite-prethink:RELEASE

LATEST

mod config recipes jar install io.moderne.recipe:rewrite-prethink:LATEST

Pinned version

mod config recipes jar install io.moderne.recipe:rewrite-prethink:0.18.0

Data tables

Java constructor field assignments

io.moderne.prethink.table.JavaConstructorFieldAssignments

Written immediate constructor-body assignments from a bare explicit formal parameter to an owned non-static field. One row per source occurrence, without deduplication. Actual UUIDs are original-model-local; joins require verified VCS/input/producer namespaces and unique source inventory. No JavaType.Variable object identity binding, String/property evaluation or runtime state inference.

Export after a run

mod study . --last-recipe-run \
  --data-table io.moderne.prethink.table.JavaConstructorFieldAssignments

Column	Description
Source path	Original written .java compilation-unit source path.
Source set	Sole actual JavaSourceSet name, preserving null/empty; null when missing or duplicated. Never inferred from a path.
Project ID	Sole actual JavaProject marker UUID, or null when missing/duplicated. Opaque original-model-local identity.
Project name	Sole actual JavaProject name, preserving null/empty. Descriptive only; never an identity fallback.
Source set ID	Sole actual JavaSourceSet marker UUID, or null when missing/duplicated. Joins also require the exact original project/input namespace.
Source file ID	Actual original J.CompilationUnit UUID. Does not establish constructor/body identity or stability across model copies.
Constructor ID	Actual written constructor J.MethodDeclaration UUID. Overloads and named nested/local constructors retain their own occurrences; no outer constructor identity is inherited.
Constructor body ID	Actual constructor-body J.Block UUID observed directly, never inferred from source-file, signature or Git identity.
Constructor signature	Exact attributed JavaType.Method.toString() for the constructor. Retains available types; not a unique declaration identity or complete-attribution guarantee.
Constructor start line	One-based original sanitized-printer line at the full written constructor declaration start, including its annotations and excluding prefix whitespace/comments.
Constructor start column	One-based UTF-16 column at the full written constructor declaration start; tabs count as one.
Constructor end line	One-based original line at the exclusive full constructor declaration end, including its body.
Constructor end column	One-based UTF-16 column at the exclusive full constructor declaration end.
Parameter declaration ID	Actual explicit formal parameter J.VariableDeclarations UUID. Distinct from its NamedVariable parameter ID.
Parameter ID	Actual sole formal-parameter NamedVariable UUID. No JavaType.Variable object identity or synthetic parameter identity is substituted.
Parameter index	Zero-based written formal-parameter ordinal in this exact constructor; a varargs parameter occupies one slot. J.Empty and explicit receiver parameters are excluded; no synthetic formals are inferred.
Parameter name	Actual simple name of the structurally matched explicit formal parameter in this exact constructor.
Parameter type	Available attributed formal-parameter JavaType.toString(), or null for missing/Unknown type. Not an assignability or complete-attribution claim.
Parameter start line	One-based original sanitized-printer line at the full formal J.VariableDeclarations start, including written annotations/type/name and excluding prefix whitespace/comments.
Parameter start column	One-based UTF-16 column at the full formal-parameter declaration start, including written annotations.
Parameter end line	One-based original line at the exclusive full formal-parameter declaration end. A following parameter comma is excluded.
Parameter end column	One-based UTF-16 column at the exclusive full formal-parameter declaration end, excluding a following comma.
Field owner	Actual attributed non-static target field declaring-type FQN, required to equal this constructor's declaring class. No inherited/outer-this or spelling-based owner inference.
Field name	Actual attributed owned-field name at the explicitly written this.field LHS. Not a source declaration UUID.
Field type	Available attributed target-field JavaType.toString(), or null for missing/Unknown component type. Owner attribution remains required.
Field reference ID	Actual LHS J.FieldAccess name J.Identifier UUID. This identifies the reference token, not a JavaType.Variable object or field declaration.
Field start line	One-based original sanitized-printer line at the LHS field-name token start; the this. qualifier is excluded.
Field start column	One-based UTF-16 column at the LHS field-name token start, excluding this.
Field end line	One-based original line at the exclusive LHS field-name token end.
Field end column	One-based UTF-16 column at the exclusive LHS field-name token end.
Assignment ID	Actual immediate constructor-body J.Assignment UUID. Repeated writes retain separate rows, including eligible direct writes after this/super delegation statements; delegation itself is not followed.
Assignment start line	One-based original sanitized-printer line at the assignment-expression start, excluding prefix whitespace/comments.
Assignment start column	One-based UTF-16 column at the assignment-expression start.
Assignment end line	One-based original line at the exclusive J.Assignment expression end. The statement semicolon is excluded.
Assignment end column	One-based UTF-16 column at the exclusive assignment-expression end, excluding the semicolon.
Assignment source	Exact original sanitized-printer J.Assignment expression slice. Preserves written formatting; excludes prefix whitespace/comments and the statement semicolon.
RHS ID	Actual bare RHS J.Identifier UUID, structurally bound to an explicit formal parameter of this exact constructor. Not the parameter declaration UUID.
RHS start line	One-based original sanitized-printer line at the bare RHS identifier start.
RHS start column	One-based UTF-16 column at the bare RHS identifier start, excluding prefix whitespace/comments.
RHS end line	One-based original line at the exclusive bare RHS identifier end.
RHS end column	One-based UTF-16 column at the exclusive bare RHS identifier end.

Source files that had results

org.openrewrite.table.SourcesFileResults

Source files that were modified by the recipe run.

Export after a run

mod study . --last-recipe-run \
  --data-table org.openrewrite.table.SourcesFileResults

Column	Description
Source path before the run	The source path of the file before the run. null when a source file was created during the run.
Source path after the run	A 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 changes	In 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 changes	The specific recipe that made a change.
Estimated time saving	An estimated effort that a developer to fix manually instead of using this recipe, in unit of seconds.
Cycle	The recipe cycle in which the change was made.

Source files that had search results

org.openrewrite.table.SearchResults

Search results that were found during the recipe run.

Export after a run

mod study . --last-recipe-run \
  --data-table org.openrewrite.table.SearchResults

Column	Description
Source path of search result before the run	The source path of the file with the search result markers present.
Source path of search result after run the run	A recipe may modify the source path. This is the path after the run. null when a source file was deleted during the run.
Result	The trimmed printed tree of the LST element that the marker is attached to.
Description	The content of the description of the marker.
Recipe that added the search marker	The specific recipe that added the Search marker.

Source files that errored on a recipe

org.openrewrite.table.SourcesFileErrors

The details of all errors produced by a recipe run.

Export after a run

mod study . --last-recipe-run \
  --data-table org.openrewrite.table.SourcesFileErrors

Column	Description
Source path	The file that failed to parse.
Recipe that made changes	The specific recipe that made a change.
Stack trace	The stack trace of the failure.

Recipe performance

org.openrewrite.table.RecipeRunStats

Statistics used in analyzing the performance of recipes.

Export after a run

mod study . --last-recipe-run \
  --data-table org.openrewrite.table.RecipeRunStats

Column	Description
The recipe	The recipe whose stats are being measured both individually and cumulatively.
Source file count	The number of source files the recipe ran over.
Source file changed count	The number of source files which were changed in the recipe run. Includes files created, deleted, and edited.
Cumulative scanning time (ns)	The total time spent across the scanning phase of this recipe.
Max scanning time (ns)	The max time scanning any one source file.
Cumulative edit time (ns)	The total time spent across the editing phase of this recipe.
Max edit time (ns)	The max time editing any one source file.