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New MongoDB ORM/ODM Tool

· 6 min read
ZhaoYongChun
Maintainers
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This article is generated by AI translation.

Java ORM tools are mature for RDBMS, but MongoDB's document model needs ODM (Object-Document Mapping) for clean Java integration. This post surveys the landscape and introduces dbVisitor as a JDBC-based solution.

Handling Complex Conditions with Rules

· 4 min read
ZhaoYongChun
Maintainers
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This article is generated by AI translation.

Simple rules like @{and, name = :name} handle single conditions well, but real-world queries often need nested logic like (A AND B) OR (C AND D). This article shows how dbVisitor rules handle complex compound conditions in one line.