Example usage for javafx.collections ObservableList stream

Introduction

In this page you can find the example usage for javafx.collections ObservableList stream.

Prototype

default Stream<E> stream() 

Source Link

Document

Returns a sequential Stream with this collection as its source.

Usage

From source file:org.sleuthkit.autopsy.timeline.ui.detailview.DetailViewPane.java

/**
 * Observe the list of events that should be highlighted in this view.
 *
 *
 * @param highlightedEvents the ObservableList of events that should be
 *                          highlighted in this view.
 *//*from w  w w  .ja  va  2  s .  c  om*/
public void setHighLightedEvents(ObservableList<TimeLineEvent> highlightedEvents) {
    highlightedEvents.addListener((Observable observable) -> {
        /*
         * build a predicate that matches events with the same description
         * as any of the events in highlightedEvents or which are selected
         */
        Predicate<EventNodeBase<?>> highlightPredicate = highlightedEvents.stream() // => events
                .map(TimeLineEvent::getDescription)// => event descriptions 
                .map(new Function<String, Predicate<EventNodeBase<?>>>() {
                    @Override
                    public Predicate<EventNodeBase<?>> apply(String description) {
                        return eventNode -> StringUtils.equalsIgnoreCase(eventNode.getDescription(),
                                description);
                    }
                })// => predicates that match strings agains the descriptions of the events in highlightedEvents
                .reduce(getSelectedNodes()::contains, Predicate::or); // => predicate that matches an of the descriptions or selected nodes
        getChart().setHighlightPredicate(highlightPredicate); //use this predicate to highlight nodes
    });
}

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