Add Hibernate 7 batches 2-6: mapping styles, JPA annotations, natural IDs, @Immutable, stored procedures, in-memory test databases, JNDI mocking, proxies, associations, temporal mapping, named queries, HQL, Criteria API and EntityManager bootstrapping (Hibernate 7.4.5.Final + Spring Boot 4.1.1 + JDK 25)

Co-Authored-By: Claude Sonnet 5 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EQNA6DJ9VgCtW6zhCE8Xud

src/main/java/com/ankurm/hibernatedemo/proxy/ProxyPublisher.java

@@ -0,0 +1,39 @@
+package com.ankurm.hibernatedemo.proxy;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+
+/**
+ * The default-fetch-type EAGER side of the entity-graph demo in docs/11-proxies-and-lazy-initialization.md
+ * (fetchgraph vs loadgraph). {@link ProxyBook#publisher} points here with the default
+ * {@code @ManyToOne} fetch type, which is EAGER -- deliberately, so that a
+ * {@code jakarta.persistence.fetchgraph} hint has something to force back to LAZY that a
+ * {@code jakarta.persistence.loadgraph} hint leaves alone.
+ */
+@Entity
+public class ProxyPublisher {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long id;
+
+    private String name;
+
+    protected ProxyPublisher() {
+        // JPA
+    }
+
+    public ProxyPublisher(String name) {
+        this.name = name;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getName() {
+        return name;
+    }
+}