SimplePredictionView.java

package com.schneeloch.bostonbusmap_library.data;

import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;

public class SimplePredictionView extends PredictionView {
	private final String snippet;
	private final String snippetTitle;
	private final ImmutableCollection<Alert> alerts;
	
	private static final SimplePredictionView EMPTY;
	
	public SimplePredictionView(String snippet, String snippetTitle, ImmutableCollection<Alert> alerts) {
		this.snippet = snippet;
		this.snippetTitle = snippetTitle;
		this.alerts = alerts;
	}
	
	static {
		ImmutableCollection<Alert> nullAlerts = ImmutableList.of();
		EMPTY = new SimplePredictionView("", "", nullAlerts);
	}
	
	@Override
	public String getSnippet() {
		return snippet;
	}

	@Override
	public String getSnippetTitle() {
		return snippetTitle;
	}

	@Override
	public ImmutableCollection<Alert> getAlerts() {
		return alerts;
	}

	public static SimplePredictionView empty() {
		return EMPTY;
	}

}