I’ve a two POJOs, Sample code below Controller class This returns me a list of the list: but what I want is a single list like How can I do that with Java 8 streams? I’ve tried flatMap also, but that doesn’t go well with the Object datatype of entries. Answer Consider a List<String> as…
Change or override default Behavior of Mongorepository.save(document)
Is there any way to intercept or change the document before MongoRepository.save(e) updates it? I am trying to push a subproperty inside and array in a document. I have tried to manipulate DBObjects by implementing converter(using custom converter) but the $push operation did not work over there. I think to m…
I used Glide library to load image into imageView and I don’t know how to make image pinch to zoomable
I tried using Picasso too and then connecting it with PhotoView library but it didn’t do anything, when I tried pinch to zoom it didn’t zoom at all, here is part of that code: Answer You can for example use this library. https://github.com/MikeOrtiz/TouchImageView Load your image into this widget,…
How to exclude a direct dependency of a Maven Plugin
I want to exclude a direct dependency of a Maven plugin and the approach described in this answer does not work (as indicated by this comment). As a particular example: I still see javax.xml.bind:jaxb-api in the list of dependencies (with mvn … -X). What am I doing wrong? (In case someone has an idea fo…
Get index of element that matches a predicate
I know how to find the first element of a list by predicate: Find first element by predicate Is there an easy way to get the index of that element? Answer If I understood correctly, that’s the classic case where you need IntStream; but that would only apply for a List obviously.
Hibernate upgrade to 5.2 – Session Factory creation and replacing PersistentClass for getting entity class properties
I am currently upgrading my Hibernate version to the latest version 5.2.10. I replaced my code in the HibernateUtil for the SessionFactory creation. 4.3.11.Final (Previous): 5.2.10 Final (New): Now I have a method which would fetch me the list of column names by passing the DB table name as a string. I did it…
Accessing Spring RestApi using POSTMAN (404 not found)
I’m trying to access a simple api using POSTMAN but every time it give the error 404 not found. What can I do to access my api? This is my PostApi class, My main class is in BloggApplication.java. I call the API using POSTMAN as this, with body Answer I solved the issue I moved Application class which c…
How to reset Hibernate sequence generators?
I’m using Hibernate 3.5.6-Final with an Oracle database for production and a H2 database for integration tests. The Hibernate mapping for ID creation looks like this with every entity extending EasyPersistentObject: Before each JUnit integration test I am removing all data from the database with Everyth…
how to modify web.xml for multiple servlet
I just get confused about how to modify web.xml for multiple servlet. I got three servlet to handle three different jsp, but now only one servlet is effective. Answer You should declare and define the classes/servlets inside the web.xml file like this:
Putting a user’s input in between double quotes
if the user inputs John, the output will say : John is your first name. My question : How can I change the output to “John” instead of John. Answer Try this This escapes the ” by using .