hacking - tmp save

Author: christophstrobl

spring-data-jpa/src/main/java/org/springframework/data/jpa/repository/query/AbstractJpaQuery.java

@@ -23,6 +23,8 @@
 import jakarta.persistence.TupleElement;
 import jakarta.persistence.TypedQuery;
 
+import java.lang.reflect.InvocationTargetException;
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashMap;
@@ -51,6 +53,7 @@
 import org.springframework.jdbc.support.JdbcUtils;
 import org.springframework.lang.Nullable;
 import org.springframework.util.Assert;
+import org.springframework.util.ClassUtils;
 
 /**
  * Abstract base class to implement {@link RepositoryQuery}s.
@@ -353,6 +356,24 @@ public Object convert(Object source) {
 				}
 			}
 
+			if(type.isProjecting() && !type.getReturnedType().isInterface() && !type.getInputProperties().isEmpty()) {
+				List<Object> ctorArgs = new ArrayList<>(type.getInputProperties().size());
+				type.getInputProperties().forEach(it -> {
+					ctorArgs.add(tuple.get(it));
+				});
+                try {
+                    return type.getReturnedType().getConstructor(ctorArgs.stream().map(Object::getClass).toArray(Class<?>[]::new)).newInstance(ctorArgs.toArray());
+                } catch (InstantiationException e) {
+                    throw new RuntimeException(e);
+                } catch (IllegalAccessException e) {
+                    throw new RuntimeException(e);
+                } catch (InvocationTargetException e) {
+                    throw new RuntimeException(e);
+                } catch (NoSuchMethodException e) {
+                    throw new RuntimeException(e);
+                }
+            }
+
 			return new TupleBackedMap(tupleWrapper.apply(tuple));
 		}