HappyTree API – Java API for managing tree-structured objects

Summary: HappyTree is an open-source Java API that converts linear collections of objects with parent-child references into hierarchical tree structures. It enables manipulation of Java objects as tree nodes with operations like adding, removing, copying, and updating, simplifying complex tree handling in memory.

What it does

It transforms flat data structures with @Id and @Parent attributes into actual trees and provides methods to manipulate these tree nodes programmatically.

Who it's for

Java developers working with hierarchical data such as directories, organizational charts, UI component trees, or any parent-child relationships.

Why it matters

It resolves the complexity of managing hierarchical data stored in flat structures by enabling straightforward tree operations in memory.