command-single

name	command-single
description	Create a single JRebirth Command for one explicit, named action (save, refresh, load one thing, navigate). Use when a discrete action must be run and named clearly.

Create Single Command

A single command one clear named action

Use when

One explicit action must run named clearly:

• save editor
• refresh ranking
• load one thing
• open detail screen
• import file

Key API

• extend DefaultCommand; do work perform(Wave).
• use DefaultUICommand when action must run JavaFX thread DefaultUndoableCommand when undoable
• read payload wave.get(SomeWaves.ITEM).

Invocation

Trigger any component (Model, Controller) callCommand, never getCommand(...).run(...), bypasses wave pipeline

• Single payload: define WaveItem<T> command or shared waves class then callCommand(FooCommand.class, WBuilder.waveData(FooCommand.ITEM, value)). Avoid dedicated WaveBean one field
• Multiple fields: use WaveBean static factory FooWaveBean.of() fluent setters then callCommand(FooCommand.class, bean).

Keep small

If starts orchestrating many async steps or backend concerns pair service

Template: templates/SingleCommandTemplate.java.txt.