HHH-12280 - Resolve {alias} in @Formula like Restrictions.sqlRestriction()

hibernate-core/src/main/java/org/hibernate/loader/custom/sql/SQLQueryParser.java

@@ -89,7 +89,7 @@ public class SQLQueryParser {
 		for ( int curr = 0; curr < sqlQuery.length(); curr = right + 1 ) {
 			if ( ( left = sqlQuery.indexOf( '{', curr ) ) < 0 ) {
 				// No additional open braces found in the string, append the
-				// rest of the string in its entirty and quit this loop
+				// rest of the string in its entirety and quit this loop
 				result.append( sqlQuery.substring( curr ) );
 				break;
 			}
@@ -171,6 +171,9 @@ public class SQLQueryParser {
 					}
 				}
 			}
+			else {
+				result.append( '{' ).append(aliasPath).append( '}' );
+			}
 		}
 
 		// Possibly handle :something parameters for the query ?

hibernate-core/src/main/java/org/hibernate/mapping/Formula.java

@@ -10,6 +10,7 @@ import java.io.Serializable;
 
 import org.hibernate.dialect.Dialect;
 import org.hibernate.dialect.function.SQLFunctionRegistry;
+import org.hibernate.internal.util.StringHelper;
 import org.hibernate.sql.Template;
 
 /**
@@ -33,7 +34,8 @@ public class Formula implements Selectable, Serializable {
 
 	@Override
 	public String getTemplate(Dialect dialect, SQLFunctionRegistry functionRegistry) {
-		return Template.renderWhereStringTemplate(formula, dialect, functionRegistry);
+		String template = Template.renderWhereStringTemplate(formula, dialect, functionRegistry);
+		return StringHelper.replace( template, "{alias}", Template.TEMPLATE );
 	}
 
 	@Override

hibernate-core/src/test/java/org/hibernate/test/annotations/formula/FormulaWithAliasTest.java

@@ -0,0 +1,130 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * License: GNU Lesser General Public License (LGPL), version 2.1 or later.
+ * See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
+ */
+package org.hibernate.test.annotations.formula;
+
+import static org.hibernate.testing.transaction.TransactionUtil.doInHibernate;
+import static org.junit.Assert.assertEquals;
+
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.List;
+
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+import org.hibernate.annotations.Formula;
+import org.hibernate.cfg.AvailableSettings;
+import org.hibernate.cfg.Configuration;
+import org.hibernate.cfg.Environment;
+import org.hibernate.dialect.H2Dialect;
+import org.hibernate.query.Query;
+import org.hibernate.test.annotations.formula.FormulaWithColumnTypesTest.ExtendedDialect;
+import org.hibernate.test.locking.A;
+import org.hibernate.testing.RequiresDialect;
+import org.hibernate.testing.TestForIssue;
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+import org.junit.Test;
+
+/**
+ * @author Yanming Zhou*
+ */
+@RequiresDialect(H2Dialect.class)
+public class FormulaWithAliasTest extends BaseCoreFunctionalTestCase {
+
+	@Override
+	protected Class<?>[] getAnnotatedClasses() {
+		return new Class[] { Customer.class };
+	}
+
+	@Override
+	protected void configure(Configuration configuration) {
+		configuration.setProperty(
+				Environment.DIALECT,
+				ExtendedDialect.class.getName()
+		);
+	}
+
+	@Test
+	@TestForIssue(jiraKey = "HHH-12280")
+	public void testFormulaWithAlias() throws Exception {
+		doInHibernate( this::sessionFactory, session -> {
+			Customer company1 = new Customer();
+			company1.setBalance(new BigDecimal(100));
+			company1.setVip(true);
+			session.persist(company1);
+
+			Customer company2 = new Customer();
+			company2.setBalance(new BigDecimal(1000));
+			company2.setVip(false);
+			session.persist(company2);
+		} );
+
+		doInHibernate( this::sessionFactory, session -> {
+			List<Customer> customers = session.createQuery(
+				"select c " +
+				"from Customer c ", Customer.class)
+			.getResultList();
+
+			assertEquals(2, customers.size());
+			assertEquals(1d, customers.get(0).getPercentage().doubleValue(), 0);
+			assertEquals(1d, customers.get(1).getPercentage().doubleValue(), 0);
+		} );
+	}
+	
+	@Entity(name = "Customer")
+	public static class Customer implements Serializable{
+
+		@Id
+		@GeneratedValue(strategy = GenerationType.AUTO)
+		private Long id;
+
+		private BigDecimal balance;
+
+		@Formula("balance/(select sum(c.balance) from Customer c where c.vip = {alias}.vip)")
+		private BigDecimal percentage;
+
+		private boolean vip;
+
+		public Long getId() {
+			return id;
+		}
+
+		public void setId(Long id) {
+			this.id = id;
+		}
+
+		public BigDecimal getBalance() {
+			return balance;
+		}
+
+		public void setBalance(BigDecimal balance) {
+			this.balance = balance;
+		}
+
+		public BigDecimal getPercentage() {
+			return percentage;
+		}
+
+		public void setPercentage(BigDecimal percentage) {
+			this.percentage = percentage;
+		}
+
+		public boolean isVip() {
+			return vip;
+		}
+
+		public void setVip(boolean vip) {
+			this.vip = vip;
+		}
+
+	}
+
+}