Import autogenerated JPA entities.

Adds JPA entities generated by IntelliJ for all existing tables in the
database.

Change-Id: Iac957b5d68ce45328db87487f105522f8595e124
diff --git a/src/main/scala/eu/mulk/entity/ArticleRevisionParenthoodPK.java b/src/main/scala/eu/mulk/entity/ArticleRevisionParenthoodPK.java
new file mode 100644
index 0000000..ecb918c
--- /dev/null
+++ b/src/main/scala/eu/mulk/entity/ArticleRevisionParenthoodPK.java
@@ -0,0 +1,50 @@
+package eu.mulk.entity;
+
+import java.io.Serializable;
+import java.util.Objects;
+import javax.persistence.Column;
+import javax.persistence.Id;
+
+public class ArticleRevisionParenthoodPK implements Serializable {
+
+  private int parentId;
+  private int childId;
+
+  @Column(name = "parent", nullable = false)
+  @Id
+  public int getParentId() {
+    return parentId;
+  }
+
+  public void setParentId(int parentId) {
+    this.parentId = parentId;
+  }
+
+  @Column(name = "child", nullable = false)
+  @Id
+  public int getChildId() {
+    return childId;
+  }
+
+  public void setChildId(int childId) {
+    this.childId = childId;
+  }
+
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) {
+      return true;
+    }
+    if (o == null || getClass() != o.getClass()) {
+      return false;
+    }
+    ArticleRevisionParenthoodPK that = (ArticleRevisionParenthoodPK) o;
+    return parentId == that.parentId &&
+        childId == that.childId;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(parentId, childId);
+  }
+}