Apache Pulsar is an all-in-one messaging and streaming platform. Messages can be consumed and acknowledged individually or consumed as streams with less than 10ms of latency. Its layered architecture allows rapid scaling across hundreds of nodes, without data reshuffling.
Its features include multi-tenancy with resource separation and access control, geo-replication across regions, tiered storage and support for six official client languages. It supports up to one million unique topics and is designed to simplify your application architecture.
What are the best practices for using prototype scope?
What happens if you call ApplicationContext.getBean() for a prototype bean multiple times?
What is the default scope in Spring and why?
When should you use prototype scope vs request scope?
Explain @Lookup annotation usage in this context.
Can we inject a session-scoped bean into a prototype bean?
What are “Scope Mismatch” errors?
What are the possible issues with prototype beans in singleton beans?
How does Spring handle @Scope(proxyMode = ScopedProxyMode.TARGET_CLASS) internally?
Can a singleton bean hold a request- or session-scoped bean?
What happens when a prototype bean has a singleton dependency?
What happens when a singleton bean contains a prototype bean?
Which operations are not allowed on frozen collections in Cassandra?
What does "frozen" mean in Cassandra?
What are cassandra collections?
What are keyspaces in Cassandra?
Advantages of using record in Java.
What is the difference between a class and a record in Java?
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