[hibernate#2212] add getCriteriaBuilder() convenience method to session types

since JPA has this, and a uniform API makes things easier for
Hibernate Processor

Author: gavinking

hibernate-reactive-core/src/main/java/org/hibernate/reactive/mutiny/Mutiny.java

@@ -1525,6 +1525,15 @@ default Session setCacheRetrieveMode(CacheRetrieveMode cacheRetrieveMode) {
 		 * The {@link SessionFactory} which created this session.
 		 */
 		SessionFactory getFactory();
+
+		/**
+		 * Convenience method to obtain the {@link CriteriaBuilder}.
+		 *
+		 * @since 3
+		 */
+		default CriteriaBuilder getCriteriaBuilder() {
+			return getFactory().getCriteriaBuilder();
+		}
 	}
 
 	/**
@@ -2104,6 +2113,15 @@ default Uni<Void> refresh(Object entity, LockModeType lockModeType) {
 		 * The {@link SessionFactory} which created this session.
 		 */
 		SessionFactory getFactory();
+
+		/**
+		 * Convenience method to obtain the {@link CriteriaBuilder}.
+		 *
+		 * @since 3
+		 */
+		default CriteriaBuilder getCriteriaBuilder() {
+			return getFactory().getCriteriaBuilder();
+		}
 	}
 
 	/**

hibernate-reactive-core/src/main/java/org/hibernate/reactive/stage/Stage.java

@@ -1557,6 +1557,14 @@ default Session setCacheRetrieveMode(CacheRetrieveMode cacheRetrieveMode) {
 		 * The {@link SessionFactory} which created this session.
 		 */
 		SessionFactory getFactory();
+		/**
+		 * Convenience method to obtain the {@link CriteriaBuilder}.
+		 *
+		 * @since 3
+		 */
+		default CriteriaBuilder getCriteriaBuilder() {
+			return getFactory().getCriteriaBuilder();
+		}
 	}
 
 	/**
@@ -2155,6 +2163,15 @@ default CompletionStage<Void> refresh(Object entity, LockModeType lockModeType)
 		 * The {@link SessionFactory} which created this session.
 		 */
 		SessionFactory getFactory();
+
+		/**
+		 * Convenience method to obtain the {@link CriteriaBuilder}.
+		 *
+		 * @since 3
+		 */
+		default CriteriaBuilder getCriteriaBuilder() {
+			return getFactory().getCriteriaBuilder();
+		}
 	}
 
 	/**