Table of Contents
What is c3p0 hibernate connection pooling?
C3p0 is an open-source JDBC connection pooling library, with support for caching and reuse of PreparedStatements. Hibernate provides support for Java applications to use c3p0 for connection pooling with additional configuration settings.
What is Hibernate interview questions?
Hibernate Interview Questions For Freshers
- What is ORM in Hibernate?
- What are the advantages of Hibernate over JDBC?
- What are some of the important interfaces of Hibernate framework?
- What is a Session in Hibernate?
- What is a SessionFactory?
- What do you think about the statement – “session being a thread-safe object”?
What is hibernate pool size?
The Hibernate Connection Pool Size property establishes the number of connections that are permitted between the Model repository and the Model Repository Service database. The default value is 10. In deployments with many concurrent connections, you can increase the property to increase performance.
Why Hibernate is used over JDBC?
Hibernate support inheritance and association mapping. This is the major benefit of Hibernate over JDBC. In JDBC there is no concept of inheritance or association mapping. In association mapping, it is easy to save and manage the entity. For example, when we save parent entity the child entity will save automatically.
Why was C-3PO’s mind wiped?
Shortly after the Galactic Empire was formed, Bail Organa had C-3PO’s memory wiped clean in order for the droid to not spill any confidential information. When he purchased C-3PO and R2-D2, Owen Lars also wanted the droids’ memories wiped after he learned they were looking for Obi-Wan Kenobi.
What are the different object States in hibernate?
One of the more expansive Hibernate interview questions, in total there are three object states – detached, persistent and transient. Objects become detached once the session is closed by the developer. Detached objects can then turn into persistent ones, with proper methods enabled.
What is hibernate in job interviews?
Hibernate, which functions as a layer between a Java application and its database, is a key tool for developers. Interview questions on Hibernate are likely to test you on concepts, architecture and usage. Demonstrating your knowledge of this Java framework can impress hiring managers and increase your chances of receiving a job offer.
What are the questions to ask for hibernate?
Question 1: Describe Hibernate. 1.2. Question 2: What JPA? 1.3. Question 3: What is the criteria API? 1.4. Question 4: What is ‘ORM’? 1.5. Question 5: Name a few Hibernate benefits.
What are persistent and transient objects in hibernate?
Persistent objects are those who are open – they happen whenever you save or retrieve certain instances from the Hibernate database. Transient objects are the “ odd ones ” – they are objects that have just been created, and are yet to be distinguished by a specific Session.