From a3661f16dd1c6ff8b1c5cce79f0ac948990c190c Mon Sep 17 00:00:00 2001
From: Matthias Andreas Benkard <code@mail.matthias.benkard.de>
Date: Sun, 1 Aug 2021 10:41:22 +0200
Subject: KB66 LazychatMessage: Make LazychatReference into a @ManyToMany
 association.

Change-Id: I6616c0e9dc6416abcc2e85c38924e5ca7045c062
---
 .../mulkcms2/benki/lazychat/LazychatMessage.java   | 18 +++++--
 .../mulkcms2/benki/lazychat/LazychatReference.java | 33 -------------
 .../benki/lazychat/LazychatReferencePK.java        | 55 ----------------------
 3 files changed, 14 insertions(+), 92 deletions(-)
 delete mode 100644 src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReference.java
 delete mode 100644 src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReferencePK.java

(limited to 'src/main/java')

diff --git a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java
index f52e05a..63f4791 100644
--- a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java
+++ b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatMessage.java
@@ -5,17 +5,27 @@ import java.util.Collection;
 import javax.annotation.CheckForNull;
 import javax.json.bind.annotation.JsonbTransient;
 import javax.persistence.Entity;
-import javax.persistence.FetchType;
-import javax.persistence.OneToMany;
+import javax.persistence.JoinColumn;
+import javax.persistence.JoinTable;
+import javax.persistence.ManyToMany;
 import javax.persistence.Table;
 
 @Entity
 @Table(name = "lazychat_messages", schema = "benki")
 public class LazychatMessage extends Post<LazychatMessageText> {
 
-  @OneToMany(mappedBy = "referrer", fetch = FetchType.LAZY)
+  @ManyToMany
+  @JoinTable(
+      name = "lazychat_references",
+      schema = "benki",
+      joinColumns = {@JoinColumn(name = "referrer")},
+      inverseJoinColumns = {@JoinColumn(name = "referee")})
   @JsonbTransient
-  public Collection<LazychatReference> references;
+  public Collection<LazychatMessage> referees;
+
+  @ManyToMany(mappedBy = "referees")
+  @JsonbTransient
+  public Collection<LazychatMessage> referrers;
 
   @CheckForNull
   @Override
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReference.java b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReference.java
deleted file mode 100644
index eecc23e..0000000
--- a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReference.java
+++ /dev/null
@@ -1,33 +0,0 @@
-package eu.mulk.mulkcms2.benki.lazychat;
-
-import io.quarkus.hibernate.orm.panache.PanacheEntityBase;
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.FetchType;
-import javax.persistence.Id;
-import javax.persistence.IdClass;
-import javax.persistence.JoinColumn;
-import javax.persistence.ManyToOne;
-import javax.persistence.Table;
-
-@Entity
-@Table(name = "lazychat_references", schema = "benki")
-@IdClass(LazychatReferencePK.class)
-public class LazychatReference extends PanacheEntityBase {
-
-  @Id
-  @Column(name = "referrer", nullable = false)
-  public int referrerId;
-
-  @Id
-  @Column(name = "referee", nullable = false)
-  public int refereeId;
-
-  @ManyToOne(fetch = FetchType.LAZY)
-  @JoinColumn(name = "referrer", referencedColumnName = "id", nullable = false)
-  public LazychatMessage referrer;
-
-  @ManyToOne(fetch = FetchType.LAZY)
-  @JoinColumn(name = "referee", referencedColumnName = "id", nullable = false)
-  public LazychatMessage referee;
-}
diff --git a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReferencePK.java b/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReferencePK.java
deleted file mode 100644
index 20ff71c..0000000
--- a/src/main/java/eu/mulk/mulkcms2/benki/lazychat/LazychatReferencePK.java
+++ /dev/null
@@ -1,55 +0,0 @@
-package eu.mulk.mulkcms2.benki.lazychat;
-
-import java.io.Serializable;
-import javax.persistence.Column;
-import javax.persistence.Id;
-
-public class LazychatReferencePK implements Serializable {
-
-  private int referrerId;
-  private int refereeId;
-
-  @Column(name = "referrer", nullable = false)
-  @Id
-  public int getReferrerId() {
-    return referrerId;
-  }
-
-  public void setReferrerId(int referrerId) {
-    this.referrerId = referrerId;
-  }
-
-  @Column(name = "referee", nullable = false)
-  @Id
-  public int getRefereeId() {
-    return refereeId;
-  }
-
-  public void setRefereeId(int refereeId) {
-    this.refereeId = refereeId;
-  }
-
-  @Override
-  public boolean equals(Object o) {
-    if (this == o) {
-      return true;
-    }
-    if (o == null || getClass() != o.getClass()) {
-      return false;
-    }
-
-    LazychatReferencePK that = (LazychatReferencePK) o;
-
-    if (referrerId != that.referrerId) {
-      return false;
-    }
-    return refereeId == that.refereeId;
-  }
-
-  @Override
-  public int hashCode() {
-    int result = referrerId;
-    result = 31 * result + refereeId;
-    return result;
-  }
-}
-- 
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