SwingNodeUpdater

Applies mirror to this node, so the mirror belongs to it - which is what lets MirrorState.report answer a change inside the event that made it rather than from an event of its own.

Declares value onto a widget property the user can also change, keeping mirror in sync with it.

Declares value onto a widget property whose write is a transition rather than an assignment: write is handed what the widget holds alongside what is declared, so it can write only the part that differs and leave what the rest of the value anchors standing - the caret inside a document, above all. The held value is the one the settlement has already read, so the write costs no second read.

Runs block, with the typed component as this, exactly once: on the pass that creates the node, after the set/update blocks declared above it in the same update lambda have run against the freshly built component. Use it for setup that must happen once at creation but needs a value set/update computed - a value the factory cannot see - and that reconcile would otherwise redo on every composition.

Unconditionally schedules block to run against the typed component on every composition. Prefer set/update when a single changing value drives the update; reach for reconcile only when those are insufficient.

Reconciles block against this node's children, at the end of the change pass rather than here.

Reactively applies value to the component. block runs, with the typed component as this and value as its argument, on the first composition and again only when value changes between recompositions.

Reactively applies value to the component, but - unlike set - skips the very first composition. Use it when the factory already initialized the component with value (e.g. a constructor argument).