optimizing hibernate (reducing RAM)

Author: svencc

services/recom-backend/src/main/java/com/recom/entity/map/GameMap.java

@@ -35,27 +35,27 @@ public class GameMap implements Persistable<Long>, Serializable {
     @Column(insertable = true, updatable = false, nullable = false, length = 255)
     private String name;
 
-    @OneToOne(mappedBy = "gameMap", fetch = FetchType.EAGER, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToOne(mappedBy = "gameMap", fetch = FetchType.EAGER, cascade = CascadeType.PERSIST, orphanRemoval = true)
     private MapDimensions mapDimensions;
 
     @Builder.Default
-    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.PERSIST, orphanRemoval = true)
     private Set<MapStructureEntity> mapStructures = new HashSet<>();
 
     @Builder.Default
-    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.PERSIST, orphanRemoval = true)
     private Set<SquareKilometerTopographyChunk> topographyChunks = new HashSet<>();
 
     @Builder.Default
-    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.PERSIST, orphanRemoval = true)
     private Set<SquareKilometerStructureChunk> structureChunks = new HashSet<>();
 
     @Builder.Default
-    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.PERSIST, orphanRemoval = true)
     private Set<Configuration> configurations = new HashSet<>();
 
     @Builder.Default
-    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.ALL, orphanRemoval = true)
+    @OneToMany(mappedBy = "gameMap", fetch = FetchType.LAZY, cascade = CascadeType.PERSIST, orphanRemoval = true)
     private Set<Message> messages = new HashSet<>();
 
 

services/recom-backend/src/main/java/com/recom/entity/map/SquareKilometerTopographyChunk.java

@@ -39,6 +39,7 @@ public class SquareKilometerTopographyChunk implements Persistable<Long>, Serial
     private Long squareCoordinateY; // Down to Up | 0 ---> ...
 
     @Lob
+    @Basic(fetch = FetchType.LAZY)
     @Column(insertable = true, updatable = true, nullable = true)
     private byte[] data;