this thing has the database

demo/src/main/java/com/example/database/Ingredient.java

@@ -0,0 +1,38 @@
+package com.example.database;
+
+import jakarta.persistence.Entity;
+import jakarta.persistence.Table;
+import jakarta.persistence.UniqueConstraint;
+import jakarta.persistence.Id;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Column;
+
+@Entity
+@Table(name = "ingredients", uniqueConstraints = {
+    @UniqueConstraint(columnNames = "name")
+})
+public class Ingredient {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Integer id;
+
+    @Column(nullable = false, unique = true)
+    private String name;
+
+    // Default constructor required by JPA
+    public Ingredient() {}
+
+    // Convenience constructor
+    public Ingredient(String name) {
+        this.name = name;
+    }
+
+    // Getters and setters
+    public Integer getId() { return id; }
+    public void setId(Integer id) { this.id = id; }
+
+    public String getName() { return name; }
+    public void setName(String name) { this.name = name; }
+}