Top "Persistence" questions

Persistence in computer programming refers to the capability of saving data outside the application memory.

IdentityServer4 - How to store refresh token into database using mysql.data?

I'm new at IdentityServer4. I read I need to implement an IPersistedGrantStore to store refresh tokens into a table like …

persistence identityserver4 refresh-token
Save entities to a REST API instead of DB using Doctrine 2

This is related to my other question: Persisting entities using a REST API. For a project in Symfony2 I need …

php rest symfony doctrine-orm persistence
HttpUrlConnection that sends multiple post request in single connection

I want to make multiple post calls in a single HTTP connection, I will be sending an Arraylist<String&…

java http-post persistence httpconnection
Configuration to be able to @Inject EntityManager in Seam 3

In my project I use Seam 3 and I am having issues injecting the EntityManager with the @Inject annotation. I am …

java configuration persistence cdi seam3
How to use JDO persistence manager?

I have two questions regarding how to create / use the JDO persistence manager (PM, hereafter). Say, in a Java web …

java persistence jdo persistence-manager
How to read/write a matrix from a persistent XML/YAML file in OpenCV 3 with python?

I've been trying to read and write matrices to persistent file storage (eg. XML) with anaconda's current cv2 (which I …

python xml opencv persistence opencv3.0
EntityManager.contains() returns false after persist()

The documentation for EntityManager.persist() says it will Make an instance managed and persistent. It is persisting the entity to …

java jpa persistence jta entitymanager
How to get SingularAttribute mapped value of a persistent object?

I have a persistent object (Action) and auto generated data model (Action_). By having an object of Action class and …

jakarta-ee jpa persistence metamodel
"Type of the parameter must be a class annotated with @Entity" while creating Generic DAO interface in Room

I am using Room architecture component for persistence. I have created generic DAO interface to avoid boilerplate code. Room Pro …

java android persistence dao android-room
Is there an iPhone-like Keychain in Android?

I'm looking for something like the Keychain on the iPhone, but for Android development. Something that gives me the capability …

android persistence keychain