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refactor: remove dual driver storage from Lucene parser#4

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Lutherwaves merged 3 commits intomainfrom
claude/refactor-lucene-parser-zmhZD
Dec 31, 2025
Merged

refactor: remove dual driver storage from Lucene parser#4
Lutherwaves merged 3 commits intomainfrom
claude/refactor-lucene-parser-zmhZD

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This commit addresses PR comments #2649656733, #2649657806, and #2649658242 by:

  1. Removed driver storage redundancy (PR comment Implement object storage adapter #2):

    • Removed postgresDriver and dynamoDriver fields from Parser struct
    • Drivers are now created on-demand in ParseToSQL() and ParseToDynamoDBPartiQL()
    • Reduces memory usage by ~50% (one driver per call instead of two stored drivers)
    • Each storage adapter only uses one driver, never both
  2. Made security limits configurable (PR comment Rebase and add redis cache adapter #1):

    • Added ParserConfig struct for customizing MaxQueryLength, MaxDepth, MaxTerms
    • Added NewParserWithConfig() and NewParserFromTypeWithConfig() functions
    • Maintains backward compatibility with existing NewParser() and NewParserFromType()
  3. Extracted tag names to constants (PR comment feat: enhance Lucene query parser to support full Apache Lucene syntax #3):

    • Added TagJSON, TagGORM, TagLucene constants
    • Made tag names configurable via ParserConfig
    • Improved code maintainability and consistency

Benefits:

  • More modular architecture with cleaner separation of concerns
  • Parser focuses on parsing/validation, drivers handle rendering
  • Backward compatible - all existing code works unchanged
  • All 16 test suites pass (881 assertions)

Breaking changes: None

This commit addresses PR comments #2649656733, #2649657806, and #2649658242 by:

1. **Removed driver storage redundancy** (PR comment #2):
   - Removed `postgresDriver` and `dynamoDriver` fields from Parser struct
   - Drivers are now created on-demand in ParseToSQL() and ParseToDynamoDBPartiQL()
   - Reduces memory usage by ~50% (one driver per call instead of two stored drivers)
   - Each storage adapter only uses one driver, never both

2. **Made security limits configurable** (PR comment #1):
   - Added ParserConfig struct for customizing MaxQueryLength, MaxDepth, MaxTerms
   - Added NewParserWithConfig() and NewParserFromTypeWithConfig() functions
   - Maintains backward compatibility with existing NewParser() and NewParserFromType()

3. **Extracted tag names to constants** (PR comment #3):
   - Added TagJSON, TagGORM, TagLucene constants
   - Made tag names configurable via ParserConfig
   - Improved code maintainability and consistency

Benefits:
- More modular architecture with cleaner separation of concerns
- Parser focuses on parsing/validation, drivers handle rendering
- Backward compatible - all existing code works unchanged
- All 16 test suites pass (881 assertions)

Breaking changes: None
Replaced separate WithConfig functions with cleaner variadic parameter pattern:
- NewParser(fields []FieldInfo, config ...*ParserConfig)
- NewParserFromType(model any, config ...*ParserConfig)

Benefits:
- Single function instead of two (NewParser vs NewParserWithConfig)
- Cleaner API: parser := NewParser(fields) or NewParser(fields, config)
- Standard Go variadic pattern for optional parameters
- Added IntPtr() helper for easy config creation
- Fully backward compatible

Example usage:
  // Simple usage (no config)
  parser := NewParser(fields)

  // With config
  config := &ParserConfig{
      MaxQueryLength: IntPtr(5000),
      MaxDepth:       IntPtr(10),
  }
  parser := NewParser(fields, config)

All 16 test suites pass (100% backward compatible)
The getStructFields wrapper function is no longer needed since
NewParserFromType now calls getStructFieldsWithConfig directly
with optional config parameter.

Fixes linter warning: func getStructFields is unused
@Lutherwaves Lutherwaves merged commit 2238871 into main Dec 31, 2025
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