pojo
JUnit tests for POJOs
The rule in TDD is “Test everything that could possibly break” Can a getter break? Generally not, so I don’t bother to test it. Besides, the code I do test will certainly call the getter so it will be tested. My personal rule is that I’ll write a test for any function that makes a … Read more
Create POJO Class for Kotlin
I think this should be the Plugin what you want https://github.com/wuseal/JsonToKotlinClass
ArrayList – How to modify a member of an object?
You can do this: myList.get(3).setEmail(“new email”);
Using wrapper Integer class or int primitive in hibernate mapping
Use wrappers, make your life simple. Your data model should dictate this. You should be enforcing nullability in the database anyway. If they are nullable in the database, then use wrappers. If they are not nullable, and you use wrappers, then you’ll get an exception if you try and insert a null into the database. … Read more
Jackson: is there a way to serialize POJOs directly to treemodel?
To answer my own question: JsonNode node = objectMapper.valueToTree(map);
How to map the result set of a JPA NativeQuery to a POJO using SqlResultSetMapping
@SqlResultSetMapping annotation should not be put on a POJO. Put it at (any) @Entity class. “Unknown SqlResultSetMapping [foo]” tells you, that JPA provider doesn’t see any mapping under name ‘foo’. Please see another answer of mine for the correct example JPA- Joining two tables in non-entity class
Jackson JSON Deserialization with Root Element
edit: this solution only works for jackson < 2.0 For your case there is a simple solution: You need to annotate your model class with @JsonRootName(value = “user”); You need to configure your mapper with om.configure(Feature.UNWRAP_ROOT_VALUE, true); (as for 1.9) and om.configure(DeserializationFeature.UNWRAP_ROOT_VALUE, true); (for version 2). That’s it! @JsonRootName(value = “user”) public static class User … Read more
How to define a map in a YAML file for simple POJO?
Here is how it can look like: #MAP keyMapping: key1: value1 key2: value2 Generally YAML format has natural support of key-value pairs. Take a look on the following tutorial (just for example): https://github.com/Animosity/CraftIRC/wiki/Complete-idiot’s-introduction-to-yaml Or just google “yaml map” for more details.
JSON Post request for boolean field sends false by default
Remember that Jackson, by default, determines the property name from either the getter or setter (the first that matches). To deserialize an object of type POJOUserDetails, Jackson will look for three properties public void setFirstName(String firstName) { public void setLastName(String lastName) { public void setActive(boolean isActive) { in the JSON. These are basically firstName, lastName, … Read more