Architecture

What table-driven design means Table-driven design replaces sprawling conditionals with structured data. Whenever branching logic keeps growing, move the rules into a table and let the program look up the answer. The approach shines in state machines, permission matrices, pricing rules, and plenty of day-to-day backend tasks. Here are three lightweight examples that demonstrate the idea. Example 1: Rock, paper, scissors Instead of a long if/else chain, keep a victory map and let a lookup drive the full round logic: ...

Why SPI matters Framework authors often need to hand over execution to third parties without touching the core code. Java’s Service Provider Interface (SPI) solves this by letting the framework publish contracts while external providers deliver implementations. The two sides meet through a well-defined loading routine. Visualising the flow briefly: Framework interface -> Provider implementation -> Runtime invocation | | | API contract META-INF/services file ServiceLoader wiring The framework owns the interfaces and life-cycle, providers contribute implementations, and ServiceLoader stitches things together at runtime. ...