6 - SQM based on JPA type system

hibernate-core/src/main/java/org/hibernate/metamodel/model/domain/AllowableParameterType.java

@@ -7,8 +7,10 @@
 package org.hibernate.metamodel.model.domain;
 
 import org.hibernate.Incubating;
+import org.hibernate.NotYetImplementedFor6Exception;
 import org.hibernate.metamodel.model.mapping.spi.Writeable;
 import org.hibernate.query.Query;
+import org.hibernate.type.descriptor.java.JavaTypeDescriptor;
 
 /**
  * Specialization of DomainType for types that can be used as {@link Query} parameter bind values
@@ -23,4 +25,8 @@ import org.hibernate.query.Query;
  */
 @Incubating
 public interface AllowableParameterType<J> extends Writeable {
+
+	default JavaTypeDescriptor<J> getExpressableJavaTypeDescriptor(){
+		throw new NotYetImplementedFor6Exception( getClass() );
+	}
 }

hibernate-core/src/main/java/org/hibernate/persister/entity/PropertyMapping.java

@@ -8,6 +8,7 @@ package org.hibernate.persister.entity;
 
 import org.hibernate.NotYetImplementedFor6Exception;
 import org.hibernate.QueryException;
+import org.hibernate.annotations.Remove;
 import org.hibernate.metamodel.model.domain.DomainType;
 import org.hibernate.persister.SqlExpressableType;
 import org.hibernate.type.Type;
@@ -74,4 +75,9 @@ public interface PropertyMapping {
 	 * Given a property path, return the corresponding column name(s).
 	 */
 	public String[] toColumns(String propertyName) throws QueryException, UnsupportedOperationException;
+	/**
+	 * Get the type of the thing containing the properties
+	 */
+	@Remove
+	public Type getType();
 }

hibernate-core/src/main/java/org/hibernate/sql/ast/tree/expression/BinaryArithmeticExpression.java

@@ -71,22 +71,22 @@ public class BinaryArithmeticExpression
 		walker.visitBinaryArithmeticExpression( this );
 	}
 
-	@Override
-	public DomainResult createDomainResult(
-			String resultVariable,
-			DomainResultCreationState creationState) {
-		final SqlSelection sqlSelection = creationState.getSqlExpressionResolver().resolveSqlSelection(
-				this,
-				getType().getJavaTypeDescriptor(),
-				creationState.getSqlAstCreationState().getCreationContext().getDomainModel().getTypeConfiguration()
-		);
-		//noinspection unchecked
-		return new ScalarDomainResultImpl(
-				sqlSelection.getValuesArrayPosition(),
-				resultVariable,
-				resultType.getJavaTypeDescriptor()
-		);
-	}
+//	@Override
+//	public DomainResult createDomainResult(
+//			String resultVariable,
+//			DomainResultCreationState creationState) {
+//		final SqlSelection sqlSelection = creationState.getSqlExpressionResolver().resolveSqlSelection(
+//				this,
+//				getType().getJavaTypeDescriptor(),
+//				creationState.getSqlAstCreationState().getCreationContext().getDomainModel().getTypeConfiguration()
+//		);
+//		//noinspection unchecked
+//		return new ScalarDomainResultImpl(
+//				sqlSelection.getValuesArrayPosition(),
+//				resultVariable,
+//				resultType.getJavaTypeDescriptor()
+//		);
+//	}
 
 	/**
 	 * Get the left-hand operand.

hibernate-core/src/main/java/org/hibernate/sql/results/spi/DomainResultProducer.java

@@ -19,10 +19,12 @@ public interface DomainResultProducer<T> {
 	/**
 	 * Produce the domain query
 	 */
-	DomainResult<T> createDomainResult(
+	default DomainResult<T> createDomainResult(
 			int valuesArrayPosition,
 			String resultVariable,
-			DomainResultCreationState creationState);
+			DomainResultCreationState creationState){
+		throw new NotYetImplementedFor6Exception( getClass() );
+	}
 
 	/**
 	 * Used when this producer is a selection in a sub-query.  The