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- Replaced nested query in `getMainMedal` with `INNER JOIN` - Refactored `SQLManager` for testability - Added JUnit 5 and Mockito tests - Verified 50% reduction in query count for this method Co-authored-by: acsoto <59144459+acsoto@users.noreply.github.com>
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Pull request overview
This PR optimizes the SQLManager.getMainMedal method by replacing a nested two-query approach with a single INNER JOIN query, reducing database round-trips from 2 to 1. The PR also adds necessary test infrastructure (JUnit and Mockito dependencies) and updates the PlaceholderAPI repository URL.
Changes:
- Optimized
getMainMedalmethod to use a single INNER JOIN query instead of nested queries - Added test infrastructure with JUnit Jupiter and Mockito dependencies
- Updated PlaceholderAPI repository URL and version
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| modules/MedalCabinet/src/main/java/com/mcatk/medalcabinet/sql/SQLManager.java | Refactored getMainMedal to use INNER JOIN, added test-specific constructor and setInstance method |
| modules/MedalCabinet/src/test/java/com/mcatk/medalcabinet/sql/SQLManagerTest.java | Added unit test to verify query optimization |
| modules/MedalCabinet/pom.xml | Updated PlaceholderAPI repository and version, added JUnit and Mockito test dependencies |
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| String medalId = "medal456"; | ||
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| // Setup for the single JOIN query | ||
| when(connection.prepareStatement(contains("INNER JOIN"))).thenReturn(preparedStatement1); |
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This PreparedStatement is not always closed on method exit.
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| // Setup for the single JOIN query | ||
| when(connection.prepareStatement(contains("INNER JOIN"))).thenReturn(preparedStatement1); | ||
| when(preparedStatement1.executeQuery()).thenReturn(resultSet1); |
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This ResultSet is not always closed on method exit.
1 participant
💡 What: Replaced the nested query in
SQLManager.getMainMedalwith a singleINNER JOINquery.🎯 Why: To improve performance by reducing the number of database round-trips from 2 to 1 per call.
📊 Measured Improvement: Verified via unit tests that the number of
prepareStatementcalls (queries) is reduced from 2 to 1. The optimization preserves correctness as verified by the test.Also fixed the
pom.xmlto include testing dependencies and fixed the PlaceholderAPI repository URL.PR created automatically by Jules for task 10075826486663232324 started by @acsoto