Add Hibernate 7 batches 2-5: mapping styles, JPA annotations, natural IDs, @Immutable, stored procedures, in-memory test databases, JNDI mocking, proxies, associations, temporal mapping and named queries (Hibernate 7.4.5.Final + Spring Boot 4.1.1 + JDK 25)

src/main/java/com/ankurm/hibernatedemo/association/LazyProfile.java

@@ -0,0 +1,38 @@
+package com.ankurm.hibernatedemo.association;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.OneToOne;
+import jakarta.persistence.Table;
+
+/** Owning side (holds {@code user_id} FK) of {@link LazyUser#getProfile()}. */
+@Entity
+@Table(name = "lazy_profile")
+public class LazyProfile {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String bio;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "user_id")
+    private LazyUser user;
+
+    protected LazyProfile() {
+    }
+
+    public LazyProfile(String bio, LazyUser user) {
+        this.bio = bio;
+        this.user = user;
+    }
+
+    public Long getId() {
+        return id;
+    }
+}