/*
- * Sone - Post.java - Copyright © 2010–2012 David Roden
+ * Sone - Post.java - Copyright © 2010–2013 David Roden
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
package net.pterodactylus.sone.data;
import java.util.Comparator;
-import java.util.UUID;
-import net.pterodactylus.util.collection.filter.Filter;
+import com.google.common.base.Optional;
+import com.google.common.base.Predicate;
/**
* A post is a short message that a user writes in his Sone to let other users
*
* @author <a href="mailto:bombe@pterodactylus.net">David ‘Bombe’ Roden</a>
*/
-public class Post {
+public interface Post extends Identified {
/** Comparator for posts, sorts descending by time. */
public static final Comparator<Post> TIME_COMPARATOR = new Comparator<Post>() {
};
/** Filter for posts with timestamps from the future. */
- public static final Filter<Post> FUTURE_POSTS_FILTER = new Filter<Post>() {
+ public static final Predicate<Post> FUTURE_POSTS_FILTER = new Predicate<Post>() {
@Override
- public boolean filterObject(Post post) {
- return post.getTime() <= System.currentTimeMillis();
+ public boolean apply(Post post) {
+ return (post == null) ? false : post.getTime() <= System.currentTimeMillis();
}
};
- /** The GUID of the post. */
- private final UUID id;
-
- /** The Sone this post belongs to. */
- private volatile Sone sone;
-
- /** The Sone of the recipient. */
- private volatile Sone recipient;
-
- /** The time of the post (in milliseconds since Jan 1, 1970 UTC). */
- private volatile long time;
-
- /** The text of the post. */
- private volatile String text;
-
- /** Whether the post is known. */
- private volatile boolean known;
-
- /**
- * Creates a new post.
- *
- * @param id
- * The ID of the post
- */
- public Post(String id) {
- this(id, null, 0, null);
- }
-
- /**
- * Creates a new post.
- *
- * @param sone
- * The Sone this post belongs to
- * @param text
- * The text of the post
- */
- public Post(Sone sone, String text) {
- this(sone, System.currentTimeMillis(), text);
- }
-
- /**
- * Creates a new post.
- *
- * @param sone
- * The Sone this post belongs to
- * @param time
- * The time of the post (in milliseconds since Jan 1, 1970 UTC)
- * @param text
- * The text of the post
- */
- public Post(Sone sone, long time, String text) {
- this(UUID.randomUUID().toString(), sone, time, text);
- }
-
- /**
- * Creates a new post.
- *
- * @param id
- * The ID of the post
- * @param sone
- * The Sone this post belongs to
- * @param time
- * The time of the post (in milliseconds since Jan 1, 1970 UTC)
- * @param text
- * The text of the post
- */
- public Post(String id, Sone sone, long time, String text) {
- this.id = UUID.fromString(id);
- this.sone = sone;
- this.time = time;
- this.text = text;
- }
-
//
// ACCESSORS
//
*
* @return The ID of the post
*/
- public String getId() {
- return id.toString();
- }
+ public String getId();
/**
* Returns the Sone this post belongs to.
*
* @return The Sone of this post
*/
- public Sone getSone() {
- return sone;
- }
+ public Sone getSone();
/**
- * Sets the Sone of this post.
+ * Returns the ID of the recipient {@link Sone}, or
+ * {@link Optional#absent()} if this post does not have a recipient.
*
- * @param sone
- * The Sone of this post
- * @return This post (for method chaining)
+ * @return The ID of the recipient, or {@link Optional#absent()}
*/
- public Post setSone(Sone sone) {
- this.sone = sone;
- return this;
- }
+ public Optional<String> getRecipientId();
/**
* Returns the recipient of this post, if any.
*
- * @return The recipient of this post, or {@code null}
- */
- public Sone getRecipient() {
- return recipient;
- }
-
- /**
- * Sets the recipient of this post.
- *
- * @param recipient
- * The recipient of this post, or {@code null}
- * @return This post (for method chaining)
+ * @return The recipient of this post, or {@link Optional#absent()} if there
+ * is no recipient
*/
- public Post setRecipient(Sone recipient) {
- if (!sone.equals(recipient)) {
- this.recipient = recipient;
- }
- return this;
- }
+ public Optional<Sone> getRecipient();
/**
* Returns the time of the post.
*
* @return The time of the post (in milliseconds since Jan 1, 1970 UTC)
*/
- public long getTime() {
- return time;
- }
-
- /**
- * Sets the time of this post.
- *
- * @param time
- * The time of this post (in milliseconds since Jan 1, 1970 UTC)
- * @return This post (for method chaining)
- */
- public Post setTime(long time) {
- this.time = time;
- return this;
- }
+ public long getTime();
/**
* Returns the text of the post.
*
* @return The text of the post
*/
- public String getText() {
- return text;
- }
-
- /**
- * Sets the text of this post.
- *
- * @param text
- * The text of this post
- * @return This post (for method chaining)
- */
- public Post setText(String text) {
- this.text = text;
- return this;
- }
+ public String getText();
/**
* Returns whether this post is known.
*
* @return {@code true} if this post is known, {@code false} otherwise
*/
- public boolean isKnown() {
- return known;
- }
+ public boolean isKnown();
/**
* Sets whether this post is known.
* {@code true} if this post is known, {@code false} otherwise
* @return This post
*/
- public Post setKnown(boolean known) {
- this.known = known;
- return this;
- }
-
- //
- // OBJECT METHODS
- //
-
- /**
- * {@inheritDoc}
- */
- @Override
- public int hashCode() {
- return id.hashCode();
- }
-
- /**
- * {@inheritDoc}
- */
- @Override
- public boolean equals(Object object) {
- if (!(object instanceof Post)) {
- return false;
- }
- Post post = (Post) object;
- return post.id.equals(id);
- }
-
- /**
- * {@inheritDoc}
- */
- @Override
- public String toString() {
- return getClass().getName() + "[id=" + id + ",sone=" + sone + ",time=" + time + ",text=" + text + "]";
- }
+ public Post setKnown(boolean known);
}