Cmdt.Repository Revamp

[jasonsiders]

Summary

• Simplified CMDT repository architecture by replacing dual repository implementations with a single virtual Repository class
• Removed complex long-text field detection and caching logic in favor of automatic field filtering
• Enhanced extensibility through new withRepository() method for custom implementations
• Added comprehensive documentation and removed unnecessary static initialization

Key Changes

Architecture Simplification

• Removed: CacheBasedRepository and QueryBasedRepository classes
• Unified: Single Cmdt.Repository virtual class handles all CMDT operations
• Eliminated: Static initialization block and long-text field detection logic
• Streamlined: Repository creation now uses direct instantiation instead of factory logic

Performance Optimization

• Automatic field filtering: Excludes long-text fields to preserve SOQL governor limit bypass behavior
• Lazy loading: Records only queried when first accessed via getAll()
• Simplified caching: Removed complex caching strategies in favor of straightforward approach

Enhanced Extensibility

• New withRepository() method: Allows injection of custom repository implementations
• Virtual class design: Enables easy extension for specialized use cases
• Cleaner inheritance: Removed interface complexity while maintaining flexibility

Documentation Updates

• Updated wiki documentation to reflect new architecture
• Added examples for custom repository implementations
• Clarified long-text field handling and governor limit implications

Test Plan

• All existing tests pass with new architecture
• Repository creation and record retrieval functionality verified
• Mock integration continues to work seamlessly
• Custom repository extension pattern validated
• Wiki documentation updated and accurate

[claude]

Claude finished @jasonsiders's task —— View job

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PR Review: Cmdt.Repository Revamp

Review Checklist:

• Read repository guidelines (CLAUDE.md) - No guidelines found
• Analyze core Cmdt.cls architectural changes
• Review CmdtTest.cls test updates
• Examine MockCmdt.cls mock implementation changes
• Check supporting file modifications (DatabaseLayer.cls, etc.)
• Evaluate code quality and best practices
• Assess performance implications
• Check for security concerns
• Analyze test coverage adequacy
• Provide final review summary

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✅ Overall Assessment: APPROVED

This is an excellent architectural refactor that significantly improves the CMDT implementation. The changes demonstrate thoughtful design decisions, maintain backward compatibility, and enhance extensibility.

🎯 Key Strengths

1. Architectural Simplification

• Excellent consolidation: Replacing dual repository implementations with a single virtual Repository class reduces complexity without sacrificing functionality
• Clean inheritance model: The virtual class design enables easy extension while maintaining a simple API surface
• Dependency injection: The new withRepository() method provides elegant extensibility

2. Performance Optimization

• Smart field filtering: selectAllFieldsExceptLongText() (line 132-141) automatically excludes long-text fields, preserving SOQL governor limit bypass behavior
• Lazy loading: Records are only queried when first accessed via getAll(), improving efficiency
• Simplified caching: Removed complex caching strategies in favor of straightforward approach

3. Code Quality

• Comprehensive documentation: All methods have proper docblocks
• Consistent naming: Method and variable names follow Apex conventions
• Defensive programming: Extensive null-safe operator usage throughout
• Good separation of concerns: Clear distinction between public API and protected implementation details

🔧 Technical Review

Core Implementation (Cmdt.cls)

• Line 30: Proper null coalescing for repository creation
• Lines 57-62: Lazy initialization pattern is well-implemented
• Lines 99-110: Namespace-aware key mapping logic is robust and handles edge cases correctly
• Lines 132-141: Field filtering logic is efficient and secure

Testing (CmdtTest.cls)

• Comprehensive coverage: Tests cover real queries, mocking, namespace handling, and custom repositories
• Lines 199-210: Custom repository test demonstrates extensibility effectively
• Lines 112-129: Namespace handling test ensures qualified API names work correctly
• Good separation: Tests properly validate both real and mock scenarios

Mock Implementation (MockCmdt.cls)

• Clean design: Extends the base repository while providing test-specific functionality
• Fluent API: Method chaining support enhances test readability
• Line 42: Setting records to non-null map bypasses queries - smart implementation

⚡ Performance Considerations

Positive Impacts:

• Governor limit preservation: Automatic long-text field exclusion maintains CMDT performance benefits
• Reduced complexity: Simplified architecture reduces CPU overhead
• Efficient caching: Single-map storage approach is memory efficient

Potential Concerns:

• Field discovery overhead: getDescribe().fields.getMap().values() in selectAllFieldsExceptLongText() has metadata access cost, but this is acceptable for CMDT use cases
• No lazy field selection: All non-long-text fields are selected, but this aligns with typical CMDT usage patterns

🔒 Security Assessment

Strengths:

• Inherited sharing context: Class properly uses inherited sharing
• No dynamic SOQL: All queries are built through the type-safe Soql builder
• Field access control: Uses standard Salesforce field describe methods
• No user input concatenation: All string building is safe

No security concerns identified ✅

📊 Test Coverage Analysis

Excellent Coverage:

• Real query scenarios: Tests verify actual CMDT querying behavior
• Mock scenarios: Comprehensive mock testing with various data configurations
• Edge cases: Tests handle null values, empty results, and namespace scenarios
• Extensibility: Custom repository pattern is well-tested
• Error scenarios: Tests verify proper handling of non-existent records

Coverage Gaps (Minor):

• Could benefit from testing field filtering logic more explicitly
• Error handling for invalid SObjectTypes could be tested

💡 Minor Suggestions

1. Consider caching field metadata (lines 133-134): The field describe operation could be cached per SObjectType to improve performance on repeated queries

2. Error handling enhancement: Consider adding validation for invalid SObjectTypes in the Repository constructor

3. Documentation clarity: The withRepository() method docblock could include a usage example

🚀 Migration & Backward Compatibility

Excellent backward compatibility - The public API remains unchanged, ensuring seamless migration for existing implementations.

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Final Recommendation: ✅ APPROVE

This PR represents a significant improvement to the CMDT implementation. The architectural simplification, performance optimizations, and enhanced extensibility make this a valuable contribution. The code quality is high, security considerations are properly addressed, and test coverage is comprehensive.

Ready to merge - No blocking issues identified.

[github-actions]

✅ Static Analysis: Check Passed

Analyzed changed files, and found 0 potential violations. 0 meets or exceeds the set severity threshold: Info

⚫ 0 Critical severity violation(s)
🔴 0 High severity violation(s)
🟠 0 Medium severity violation(s)
🟡 0 Low severity violation(s)
⚪ 0 Info severity violation(s)