--- /dev/null
+/*
+ * Sone - PostReplyBuilder.java - Copyright © 2013–2016 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
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package net.pterodactylus.sone.database
+
+import net.pterodactylus.sone.data.PostReply
+
+/**
+ * Builder for a [PostReply] object.
+ */
+interface PostReplyBuilder : ReplyBuilder<PostReplyBuilder> {
+
+ fun to(postId: String): PostReplyBuilder
+
+ /**
+ * Verifies the configuration of this builder and creates a new post reply.
+ *
+ * The following conditions must be met in order for the configuration to be
+ * considered valid:
+ *
+ * * Exactly one of [randomId] or [withId] must have been called.
+ * * The [sender][from] must not be `null`.
+ * * Exactly one of [currentTime] or [withTime] must have been called.
+ * * The [text][withText] must not be `null` and must contain something other than whitespace.
+ * * The [post][to] must have been set.
+ *
+ * @return The created post reply
+ * @throws IllegalStateException if this builder’s configuration is not valid
+ */
+ fun build(): PostReply
+
+}