Nov 5, 2024 · Backend Development

How CGLIB Powers Faster Java Dynamic Proxies – Inside FastClass and Bytecode Generation

This article explains CGLIB, a high‑performance bytecode library for creating Java dynamic proxies without interfaces, walks through implementation steps and core source‑code analysis, details the FastClass optimization that bypasses reflection, and compares CGLIB with JDK dynamic proxies.

Bytecode GenerationDynamic ProxyFastClass

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How CGLIB Powers Faster Java Dynamic Proxies – Inside FastClass and Bytecode Generation

vivo Internet Technology

May 31, 2022 · Databases

Exploring Presto SQL Engine (3) - Implementing WHERE Condition Filtering with Antlr and Dynamic Code Generation

The third article in the Presto SQL Engine series demonstrates how to implement WHERE‑clause filtering with Antlr, contrasting a direct AST‑traversal visitor approach—hampered by branch prediction and JVM inlining issues—with runtime bytecode generation using airlift.bytecode, which yields roughly three‑fold speed gains but adds complexity.

Airlift BytecodeBytecode GenerationDynamic Code Generation

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Exploring Presto SQL Engine (3) - Implementing WHERE Condition Filtering with Antlr and Dynamic Code Generation