I’m trying to see whether a Cab is assigned to any Employee so I can fetch that Employee Id and simply to set cab as null, but @OneToMany mapping, simply returning a list of Employees & by this I’m not getting any method like a cab.getEmp() to fetch employee details Employee.java Cab.java Cont…
Tag: mapping
(Java) How do you check a string for two or more digit integers using .matches()?
The objective of this program is to return the atomic mass from a given formula (as a String), using a CSV file that contains elements and their atomic masses. My code for this particular problem is this: I have another method “fileReader” that takes the data from the mile and returns a map with t…
MapStruct. Mapping fields of list element by expression
Good afternoon! There is an object that contains field as type List, is it possible to set each (some) field of type T, by values generated in the annotation by the expression parameter? For example: Target object: Mapper interface: How can such an idea be implemented? In the documentation, I found only examp…
How to using ObjectMapper to map value of an json property to Object when my object have an contractor set this property is null
I am usng google DirectionsResul Object And then I want to using Object mapper to mapping this json to DirectionsResul Object Using this code All is ok but overview_polyline can’t mapping, the points value is null and I see in the EncodedPolyline have a contractor like this So how can I mapping the poin…
How to use Mapstruct with Ad Hoc Setters
I am trying to apply MapStruct to DDD. I created my entities with ad hoc setters like this: and I have a EmployeeDto to send data to frontend API: so, I am trying to use MapStruct to map, but it is not working because my ad hoc setter. How could I resolve this problem? Answer You have to implement custom
Mapping to “” instead of null Jackson
I have a function that reads XML from a Kafka topic into String format, which I then want to convert to a JSON Object. Example XML: I then have POJO Classes such as: (with lombok getter/setter/toString and jackson annotation imports) I am then using a MappingJackson2XmlHttpMessageConverter to get an Object Ma…
Mapping multiple fields to one in Mapstruct?
I need to map from an open banking class to my core class. I am working with mapstruct. I need to map multiple enum fields to one on my core class. But i think mapstruct doesn’t support mapping multiple fields. Any tricky way or a solution for that? Thanks in advance! Here is my enum values from open ba…
How to sort two arrays with one being sorted based on the sorting of the other?
So I have encountered this problem a lot of times. Let me explain. Say I have these two arrays: A1={1,2,3,4,5,6,7,8,9,10}; and A2={1,2,3,0,2,1,1,0,0,0};. What I require is this: When I sort A2, whatever swapping and shifting of elements takes place in A2, the same should take place in A1 as well. Basically I …
String to JSONObject troubles
Is the first time I have to make this and I think I’m going to the wrong side. I trying to pass my String to a JSONObject but it’s nothing working. My code is this: The locationObj value after: (The code continue like a String and I don’t know why) The class I’m going to use to map lat…
DataStax Java Driver 4.0: is object mapping going to be supported?
On March 2019 DataStax Java Driver v4.0.0 was released, and my project should plan future migration to it, however I was not able to found any mentioning of object mapping as it was done in 3.x.x version. I checked DataStax GitHub and JIRA and there is nothing that can help. Is it going to be supported? If ye…