[SC-10749]

Summary

• Add a CustomerTableGateway that centralizes parameterized CRUD operations for the CUSTOMERS table.
• Add an immutable Customer record, H2 demo, UML source, and README.
• Register the new Maven module and cover CRUD behavior with tests.

Validation

• table-data-gateway clean verify: 5 tests passed.
• Packaged demo runs successfully.

Closes #1318

[github-actions]

PR Summary

Introduced a Table Data Gateway pattern for the CUSTOMERS table, including an immutable Customer record, a demonstration App using an in-memory H2 database, UML diagram, and README. Added a new Maven module with tests to validate CRUD operations and to cover the gateway behavior.

Changes

File	Summary
pom.xml	Updated root pom to declare the new module table-data-gateway and to include the JUnit 5 API dependency for tests.
table-data-gateway/README.md	Documentation for the Table Data Gateway pattern, including intent, example usage, and related patterns.
table-data-gateway/etc/table-data-gateway.urm.puml	PlantUML diagram showing App, Customer, and CustomerTableGateway and their relationships.
table-data-gateway/pom.xml	Module POM declaring dependencies (slf4j, logback, h2, junit-jupiter-api, junit-jupiter-engine, mockito-core) and an assembly plugin for an executable artifact.
table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/App.java	Demo application wiring up an in-memory H2 DB and performing CRUD via CustomerTableGateway with logs.
table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/Customer.java	Immutable Customer record representing a row in the CUSTOMERS table.
table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/CustomerTableGateway.java	Gateway encapsulating all SQL operations for the CUSTOMERS table: insert, findById, findAll, update, delete.
table-data-gateway/src/test/java/com/iluwatar/tabledatagateway/AppTest.java	Tests ensuring the App class can be constructed and its main runs without throwing.
table-data-gateway/src/test/java/com/iluwatar/tabledatagateway/CustomerTableGatewayTest.java	Comprehensive tests for CRUD operations of CustomerTableGateway using H2.

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autogenerated by presubmit.ai

[github-actions]

✅ LGTM!

Review Summary

Commits Considered (1)

• cd01de8: feat: add Table Data Gateway pattern (#1318)

Files Processed (8)

• pom.xml (1 hunk)
• table-data-gateway/README.md (1 hunk)
• table-data-gateway/etc/table-data-gateway.urm.puml (1 hunk)
• table-data-gateway/pom.xml (1 hunk)
• table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/App.java (1 hunk)
• table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/Customer.java (1 hunk)
• table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/CustomerTableGateway.java (1 hunk)
• table-data-gateway/src/test/java/com/iluwatar/tabledatagateway/CustomerTableGatewayTest.java (1 hunk)

Actionable Comments (0)

Skipped Comments (2)

• table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/CustomerTableGateway.java [42-42]

  best_practice: "Declare gateway as final."

• table-data-gateway/pom.xml [53-57]

  best_practice: "Add JUnit Jupiter API dependency."

[codecov]

Codecov Report

❌ Patch coverage is 97.33333% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 84.11%. Comparing base (4cabb20) to head (b4ccfa5).

Files with missing lines	Patch %	Lines
...luwatar/tabledatagateway/CustomerTableGateway.java	96.22%	0 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #3626      +/-   ##
============================================
+ Coverage     84.06%   84.11%   +0.05%     
- Complexity     4353     4368      +15     
============================================
  Files          1133     1136       +3     
  Lines         15400    15475      +75     
  Branches        739      743       +4     
============================================
+ Hits          12946    13017      +71     
- Misses         2158     2159       +1     
- Partials        296      299       +3     

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[github-actions]

✅ LGTM!

Review Summary

Commits Considered (1)

• b4ccfa5: test: improve table data gateway coverage

Files Processed (5)

• pom.xml (2 hunks)
• table-data-gateway/pom.xml (1 hunk)
• table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/CustomerTableGateway.java (1 hunk)
• table-data-gateway/src/test/java/com/iluwatar/tabledatagateway/AppTest.java (1 hunk)
• table-data-gateway/src/test/java/com/iluwatar/tabledatagateway/CustomerTableGatewayTest.java (1 hunk)

Actionable Comments (0)

Skipped Comments (4)

• pom.xml [265-265]

  enhancement: "Add table-data-gateway module to the aggregator"

• pom.xml [327-333]

  enhancement: "Add JUnit 5 API dependency in root POM"

• table-data-gateway/pom.xml [75-75]

  enhancement: "Set runnable main class in table-data-gateway module"

• table-data-gateway/src/main/java/com/iluwatar/tabledatagateway/CustomerTableGateway.java [73-73]

  best_practice: "Add null checks for Customer fields in insert"