T.I.L_230102

What’s New for Today

1. Effective Java
   • Serialization
     • prefer alternatives to serialization
       • consider using cross-platform data structures
       • carefully use serialization
     • implement serialization carefully
       • exposure to bug
       • decrease in flexibility
       • transformation issue in old version and new version
       • carefully use in inheritance
     • consider using custom serialized form
       • only use default form when physical representation is identical to logical content
     • write readObject with defensive copy
       • if you need to control access for internal members use defensive copy
     • use enumset to control number of instances
       • readObject creates new Instance
     • use serialization proxy
       • can protect serialization
       • easily check input validity
2. MongoDB
   • master/slave replication
   • replica set
3. Algorithm
   • 1949
     • tree + dp
   • 1520
   • 2150
     • SCC
     • kosaraju
     • tarjan
4. JPA 활용
   • JPA_WebApplication
     • project gradle settings
     • view, h2, jpa settings