HHH-6364 : Add AttributeBinding.getValuesSpan() and Tuple.valuesSpan()

hibernate-core/src/main/java/org/hibernate/metamodel/binding/AbstractAttributeBinding.java

@@ -165,6 +165,20 @@ public abstract class AbstractAttributeBinding implements AttributeBinding {
 		return metaAttributeContext;
 	}
 
+	@Override
+	public int getValuesSpan() {
+		if ( value == null ) {
+			return 0;
+		}
+		else if ( value instanceof Tuple ) {
+			return ( ( Tuple ) value ).valuesSpan();
+		}
+		else {
+			return 1;
+		}
+	}
+
+
 	@Override
 	public Iterable<SimpleValue> getValues() {
 		return value == null

hibernate-core/src/main/java/org/hibernate/metamodel/binding/AttributeBinding.java

@@ -71,6 +71,17 @@ public interface AttributeBinding {
 	 */
 	public MetaAttributeContext getMetaAttributeContext();
 
+	/**
+	 * Returns the number of {@link org.hibernate.metamodel.relational.SimpleValue}
+	 * objects that will be returned by {@link #getValues()}
+	 *
+	 * @return the number of objects that will be returned by {@link #getValues()}.
+	 *
+	 * @see {@link org.hibernate.metamodel.relational.SimpleValue}
+	 * @see {@link #getValues()}
+	 */
+	public int getValuesSpan();
+
 	/**
 	 * @return In the case that {@link #getValue()} represents a {@link org.hibernate.metamodel.relational.Tuple} this method
 	 *         gives access to its compound values.  In the case of {@link org.hibernate.metamodel.relational.SimpleValue},

hibernate-core/src/main/java/org/hibernate/metamodel/relational/Tuple.java

@@ -56,6 +56,10 @@ public class Tuple implements Value, ValueContainer, Loggable {
 		return table;
 	}
 
+	public int valuesSpan() {
+		return values.size();
+	}
+
 	@Override
 	public Iterable<SimpleValue> values() {
 		return values;