JNG-6138 Duplicate reference deletion in a junction table #231
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WalkthroughThis pull request streamlines the reference removal process in DAO components. The deletion processor now directly adds validation and removal statements for each reference without prior duplicate checks. In addition, the reference statement executor has been updated to filter out duplicate database references using a new helper method. Import statements in the executor have also been consolidated. Overall, the changes simplify the deletion and reference removal logic across core and RDBMS modules. Changes
Sequence Diagram(s)sequenceDiagram
participant Client as Client
participant Processor as DeletePayloadDaoProcessor
participant Statements as Statements Collection
Client->>Processor: Request deletion process
Processor->>Statements: Add InstanceExistsValidationStatement
Processor->>Statements: Add RemoveReferenceStatement (for each reference)
sequenceDiagram
participant Executor as RemoveReferenceStatementExecutor
participant RbSet as Filtered RdbmsReference Set
participant DB as Database
Executor->>RbSet: Iterate and filter duplicates (via isTheSameRecord)
RbSet-->>Executor: Return unique references
Executor->>DB: Execute removal of filtered references
Poem
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Actionable comments posted: 0
🧹 Nitpick comments (2)
judo-runtime-core-dao-rdbms/src/main/java/hu/blackbelt/judo/runtime/core/dao/rdbms/executors/RemoveReferenceStatementExecutor.java (2)
48-48: Consider using explicit imports instead of wildcard import.While using
java.util.*works, explicit imports make dependencies clearer and prevent potential naming conflicts. This helps with code maintainability and readability.
172-189: LGTM! Effective duplicate reference filtering implementation.The implementation effectively filters duplicate references before processing join table operations. Consider using Java streams for a more functional approach:
- Set<RdbmsReference<ID>> filteredRbmsReferences = new HashSet<>(); - - for (RdbmsReference<ID> rdbmsReference : rdbmsReferenceList) { - boolean isDuplicate = filteredRbmsReferences.stream().anyMatch(filtered -> isTheSameRecord(rdbmsReference, filtered)); - if (!isDuplicate) { - filteredRbmsReferences.add(rdbmsReference); - } - } + Set<RdbmsReference<ID>> filteredRbmsReferences = rdbmsReferenceList.stream() + .filter(reference -> !filteredRbmsReferences.stream() + .anyMatch(filtered -> isTheSameRecord(reference, filtered))) + .collect(Collectors.toSet());
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📒 Files selected for processing (2)
judo-runtime-core-dao-core/src/main/java/hu/blackbelt/judo/runtime/core/dao/core/processors/DeletePayloadDaoProcessor.java(1 hunks)judo-runtime-core-dao-rdbms/src/main/java/hu/blackbelt/judo/runtime/core/dao/rdbms/executors/RemoveReferenceStatementExecutor.java(3 hunks)
🔇 Additional comments (2)
judo-runtime-core-dao-rdbms/src/main/java/hu/blackbelt/judo/runtime/core/dao/rdbms/executors/RemoveReferenceStatementExecutor.java (1)
241-252: LGTM! Well-implemented comparison logic.The
isTheSameRecordmethod effectively handles both table name comparison and bidirectional identifier matching, ensuring accurate duplicate detection.judo-runtime-core-dao-core/src/main/java/hu/blackbelt/judo/runtime/core/dao/core/processors/DeletePayloadDaoProcessor.java (1)
164-179: Simplified reference handling approach looks good, but needs documentation.The direct addition of validation and removal statements without duplicate checks is a cleaner approach, as duplicate filtering is now handled by the executor component. However, this design decision should be documented to make the dependency on executor filtering explicit.
Add a comment above line 164 explaining that duplicate references are handled by the executor:
+ // Duplicate references are filtered out by RemoveReferenceStatementExecutor statements.add(InstanceExistsValidationStatement.<ID>buildInstanceExistsValidationStatement()Let's verify that the executor properly handles duplicate filtering:
✅ Verification successful
Let's run additional shell scripts to check for the
RemoveReferenceStatementExecutorimplementation and look for clues (such as usage of a variable likefilteredRbmsReferences) that confirm duplicate filtering is performed by it.
Duplicate Filtering Behavior Confirmed in Executor Implementation
The duplicate filtering logic in the
RemoveReferenceStatementExecutorhas been verified. The executor iterates through the reference statements, using a set (filteredRbmsReferences) to ensure only unique references are processed. This confirms that the removal of duplicate checks inDeletePayloadDaoProcessoris by design, relying on the executor to filter duplicates.
- Duplicate filtering is handled in
judo-runtime-core-dao-rdbms/src/main/java/hu/blackbelt/judo/runtime/core/dao/rdbms/executors/RemoveReferenceStatementExecutor.java- The logic uses a HashSet and an
isTheSameRecordcheck to avoid processing duplicates.- This confirms the streamlined approach in
DeletePayloadDaoProcessor.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Check if RemoveReferenceStatementExecutor handles duplicate filtering ast-grep --pattern 'class RemoveReferenceStatementExecutor { $$$ executeRemoveReferenceStatements($$$) { $$$ filteredRbmsReferences $$$ } $$$ }'Length of output: 166
Script:
#!/bin/bash # Searching for the RemoveReferenceStatementExecutor class definition and related methods echo "Searching for RemoveReferenceStatementExecutor class definition:" rg -C 10 "class RemoveReferenceStatementExecutor" . echo "Searching for the executeRemoveReferenceStatements method:" rg -C 10 "executeRemoveReferenceStatements" . echo "Searching for duplicate filtering keywords (e.g., filteredRbmsReferences):" rg -C 10 "filteredRbmsReferences" .Length of output: 16985
JNG-6138 Duplicate reference deletion in a junction table