Unanswered Questions
476 questions with no upvoted or accepted answers
11
votes
1
answer
620
views
Should I be concerned with dependencies?
Our organization uses IBM ClearCase to manage its versioning controls (for better or worse). We've been working on our application for several years now, and a large number of activities have started ...
CommunityBot
- 1
6
votes
1
answer
16k
views
Should I mock ObjectMapper in my unit tests?
I have different services in a spring application that have a dependency on Jackson ObjectMapper, the unit tests rely on @InjectMocks to inject all the various dependencies to the class that is under ...
- 478
5
votes
1
answer
785
views
Applying Domain Driven Design - Model/Implementation
I'm quite new in the DDD-World and I'm just trying to figure out all the basics so please bear with me!
I have the following Entities:
- Datamodel
- Object Types
- Object Fields
A datamodel can ...
CommunityBot
- 1
5
votes
0
answers
564
views
Smallest number of rectangles covering marked parts of grid
I have an N by N grid of cells, and certain blocks are marked:
+--+---+---+---+
| | | | |
| | x | x | |
| | x | x | |
| | | | |
| | | | x |
+--+---+---+---+
I would like to ...
- 289
4
votes
0
answers
68
views
Component needs to invoke class methods and instance methods (via ORM), how to structure
An interesting design choice/discussion has cropped up in code review, and I would like to understand more about proposed solutions. The original review includes re-factoring of a messy piece of code ...
- 529
4
votes
0
answers
1k
views
Architecture design for Java servlet that triggers work (for sending push notifications)
I'm designing a push notification server (for pushing notification via APNS and Google servers) and have come up with the following design for a Java based web application server. I would really like ...
CommunityBot
- 1
4
votes
0
answers
215
views
Incorporating custom Algorithm in SOLR-LUCENE , before Indexing?
CURRENT FLOW: I am using a custom algorithm(presently in php) to rank
the MYSQL records before INDEXING it to SOLR .
WHAT I WANT : Is it possible implementing this
ALGORITHM(may be in JAVA) inside ...
- 149
4
votes
0
answers
3k
views
Spring bean injection into a hibernate validator constraint
I have a controller method like listed below whose argument is annotated with @Valid to validate PasswordChange object using a Hibernate validator @Constraint. Both PasswordChange and a sample ...
- 1,219
4
votes
0
answers
412
views
How to deal with runtime changes to tenant-location in a clustered, multitenant web application with app-managed datasources?
I have a Java web application that supports multi-tenancy to keep customer data
separate.
Connection pools to each customer database are created at runtime. The
details of each customer shard (...
- 82.3k
4
votes
1
answer
355
views
Staging of artifacts in the build server?
Java artifacts are often staged through different "quality levels", named like alpha, beta, releaseCandidate, release etc. They enter the next stage if they have passed tests (automatic or manual ones)...
CommunityBot
- 1
4
votes
1
answer
2k
views
Where to store formulas and formula "constants"?
I want to implement a database driven payroll system using CSharp. I already did it once, but the implementation sucks so I want to do it again and do it right.
My first thought is to create a static ...
- 39.3k
3
votes
0
answers
121
views
Why does the Java CompletableFuture API uses long + TimeUnit instead of Duration?
Java 9 introduced many new methods in the CompletableFuture API that support execution timeouts.
For example:
public CompletableFuture<T> orTimeout(long timeout, TimeUnit unit);
public ...
- 3,167
3
votes
0
answers
265
views
Logging by 3rd party libraries
We've got 2 very large platforms for our services & jobs.
Both platforms consists of 20+ servers hosting 1000+ services/jobs.
Each job/service is essentially a java web application.
Both ...
- 61
3
votes
0
answers
746
views
Is this an example of cyclic dependency?
I'm an undergraduate student and I have this assignment on a Discrete Event simulator. Currently I have completed to the end of v1.2 here. Attached also, is an algorithmic overview.
I have wrote my ...
3
votes
0
answers
402
views
Chronicle Queue: how to make a stack and how to limit disk usage
My server and several clients are different JVMs running on the same machine, they need to share persisted time series data: server reads a time series from somewhere, writes to a persisted embedded ...
- 31