Add Hibernate 7 batches 2-6, batch 7, and batch 8: mapping styles, JPA annotations, natural IDs, @Immutable, stored procedures, in-memory test databases, JNDI mocking, proxies, associations, temporal mapping, named queries, HQL, Criteria API, EntityManager bootstrapping, Ehcache 3 L2 cache configuration, HikariCP connection pooling, Hibernate Validator CDI integration, aggregate functions, sorting, pagination, interceptors, and Hibernate Search 8 (Hibernate 7.4.5.Final + Spring Boot 4.1.1 + JDK 25)

2026-09-20 06:06:42 +00:00
commit 8568c0ce6c
330 changed files with 23668 additions and 0 deletions
@@ -0,0 +1,76 @@
+package com.ankurm.hibernatedemo.testdb;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.Lob;
+
+/**
+ * Backs docs/09-testing-in-memory-databases.md (post 4868 rewrite). One entity, run through the SAME mapping
+ * against H2 2.4.240, HSQLDB 2.7.3 and Apache Derby 10.16.1.1 via {@link TestDbBootstrap} --
+ * the DDL differences, dialect selection, and cross-database failure case are all read off
+ * this exact class.
+ *
+ * <ul>
+ *   <li>{@code id} -- {@code GenerationType.AUTO}, deliberately not IDENTITY or SEQUENCE, to
+ *       see what each dialect resolves AUTO to.</li>
+ *   <li>{@code sku} -- {@code varchar(5)}, short enough that an over-length value is a real
+ *       constraint violation on at least one of the three databases.</li>
+ *   <li>{@code order} -- a column named after a SQL reserved word on purpose (see
+ *       {@code @Column(name = "\"order\"")}), the classic "works on some databases, breaks on
+ *       others" trap.</li>
+ *   <li>{@code active} -- a plain {@code boolean}, to see how each dialect maps and prints it.</li>
+ *   <li>{@code description} -- {@code @Lob}, to see clob/text mapping differences.</li>
+ * </ul>
+ */
+@Entity
+public class TestDbWidget {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    private Long id;
+
+    @Column(length = 5)
+    private String sku;
+
+    @Column(name = "\"order\"")
+    private Integer order;
+
+    private boolean active;
+
+    @Lob
+    private String description;
+
+    protected TestDbWidget() {
+        // JPA
+    }
+
+    public TestDbWidget(String sku, Integer order, boolean active, String description) {
+        this.sku = sku;
+        this.order = order;
+        this.active = active;
+        this.description = description;
+    }
+
+    public Long getId() {
+        return id;
+    }
+
+    public String getSku() {
+        return sku;
+    }
+
+    public Integer getOrder() {
+        return order;
+    }
+
+    public boolean isActive() {
+        return active;
+    }
+
+    public String getDescription() {
+        return description;
+    }
+}