🔸 TL;DR 🧠
▪️ JSON-P Model API = build/parse JSON trees 🌳
▪️ JSON-P Streaming API = process huge JSON efficiently 🌊
▪️ JSON Pointer = access nested values with a path 🎯
▪️ JSON Patch = apply structured JSON updates 🩹
▪️ JSON-B = clean POJO mapping (JSON ↔ Java) 🔁
🔸 QUICK NOTE (WHY PACKAGES CHANGED) 🔁
▪️ In Jakarta EE 9+, the APIs moved from javax.* ➜ jakarta.* (same concepts, new namespace) ✅
🔸 JSON-P “TREE” STYLE: BUILD + READ JSON WITH THE MODEL API 🌳
▪️ Create JSON programmatically:
▪️ Parse JSON into a tree:
🔸 JSON-P “STREAMING” STYLE: FAST + LOW MEMORY FOR BIG JSON 🌊
▪️ Write JSON as a stream:
▪️ Parse JSON token by token:
🔸 JSON POINTER: TARGET A SPECIFIC VALUE 🎯
🔸 JSON PATCH: APPLY “OPERATIONS” TO MODIFY JSON 🩹
🔸 JSON-B: JSON ↔ POJOS (THE “MAPPER” WAY) 🔁
▪️ JSON → Java objects:
▪️ Java objects → JSON string:
🔸 TAKEAWAYS ✅
▪️ Pick JSON-B for most “business JSON ↔ POJOs” use cases
▪️ Pick JSON-P Streaming when performance/memory matters
▪️ Use Pointer + Patch for surgical JSON edits (great for REST partial updates)
▪️ Mixing JSON-P + JSON-B is totally fine in real projects 🛠️
#Java #JakartaEE #JSON #JSONP #JSONB #Backend #APIs #SoftwareEngineering #Programming #CleanCode
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