All Questions
4 questions
2
votes
0
answers
152
views
Why is the following block not thread safe?
We have a Spring Boot application where we fetch data from a database and keep it in a concurrent Hashmap tempMap. Then we use it to fetch details based on the incoming keys. But keys are in the form ...
- 21
1
vote
1
answer
875
views
java11 stream split n of list chunk as arguments
Let's say I have this (Spring boot) code:
List<User> userList = userService.selectAll(); <-- this returns 1,000,000 rows
customerService.saveBulk(userList).get();
I want to split the list ...
- 1,061
0
votes
4
answers
5k
views
Conversion of Map<String, String> to List of Objects
Below is what I am trying to achieve.
"timezones": [
{
"name" : "America/New_York",
"label" : "US Eastern Time"
},
{
...
- 603
0
votes
1
answer
1k
views
collect a sequence of paged results ( 776 pages ) from REST API ( JSON response) and insert final result into DB SQL or create csv file
I am consuming a Rest API which is exposing 6212514 rows from SQL Server Database. The response of REST API is JSON which represents the database rows.
To call this API REST and get the hole data , I ...
