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I am using hibernate.What is the use In Data(POJO) class primary key is sending as an argument with constructor?
mani.sivapuram
- Feb 14th, 2011
since according to the hibernate specifications hbm file is configured in such a way that one primary key shoud be configured in id tag of hbm file.and other properties are configured in property tags...
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Hibernate Transactions
How to do transactions with Hibernate?
prsrinu
- Feb 26th, 2009
Session session = getSessionFactory().openSession();Transaction tx = session.beginTransaction();MyPersistanceClass mpc = new MyPersistanceClass ("Sample App");session.save(mpc);tx.commit();session.close();
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Connect Two Database
How to connect two database in one application using hibernate?
awasie
- Jan 21st, 2010
You have to create two different cfg files.for exampledb1.cfg.xmldb2.cfg.xmlConfiguring for different database.for db1.cfg.xmlpublic class HibernateSessionFactory { private static St...
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Hibernate JDBC Driver
What type of JDBC driver is used in hibernate?
nabi_alam
- Mar 30th, 2012
It depends on the Database what we are using.According to the database we use corresponding Driver.
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How do we create new table apart from mapping with existing table ?
CrackHead
- Aug 8th, 2011
Hibernate automatically creates new tables if there are corresponding POJOs. If you know how to write/read to/from an existing table using Hibernate, then you can easily create a table. Step#1: Creat...
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Hibernate DataSource Properties
What are the properties in DataSource Explain? also explain hibernate properties?
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What is the difference between hibernate and Spring
mani.sivapuram
- Feb 21st, 2011
Hibernate is used to interact with database.i.e if we want to save some data then we use hibernate or jdbc or some other tools available in the market.But it is not possible for struts or spring to st...
srini
- May 3rd, 2007
Hibernate is ORM tool used for data persistency.Spring is a framework for enterprise applications?with default APIs for presentation, middle tiers and presistence layers and allows to integrate with ...
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How are joins handled using HQL.
anupsadhwani60
- Sep 16th, 2007
HQL provides four ways of expressing (inner and outer) joins:1) An ordinary join in the from clause2) A fetch join in the from clause3) A theta-style join in the where clause4) An implicit association join
Sivakumar Karuppiah
- Aug 15th, 2007
Its just like RDBMS joining. After joining two or more tables we are retriving values from different tables. In HQL, The tables are our Value Objects (VOs). when we apply join on two more VOs we...
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How will handle Hibernate the situation,
If the data base does not contain any primary key?i.e we had a table that does not contain key .but we map the all the fields to properties of class.
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How do i call the the Stored procedure using Hibernate?
tecfinder
- Mar 26th, 2010
There are two ways you can call stored procedure in hibernate1) session.connection() will give you jdbc connection which you can use it to call callablestatement which you normally do in JDBC. Here yo...
Hur Muhammad
- Mar 10th, 2008
You can use callableStatement to call any procedure from the Hibernate but i prefer to use iBatis instead of Hibernate for performing these type of actions.
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Fetching Strategies
What are different fetching strategies in hibernate?
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Level 2 Cache and Query Cache
What will happened if level 2 cache is enable and query cache is diabled in Hibernate?
sowdri
- Jan 29th, 2011
Query cache depends on L2 cache. L2 cache does not depend on query cache. So nothing would happen. Alternatively: What will happened if level 2 cache is disabled and query cache is enabled in ...
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When would you use Hibernate and Spring JDBC Template ?
Mukesh
- Aug 25th, 2015
As per my view Hibernate is complete framework for ORM tool which including broad future for handing database. It has also keeping feature of Mapping (1 to 1, 1 to M,.....) but in Spring JDBC not covered to these all things
sampra
- Mar 19th, 2012
Spring jdbc and hibernate are working in same way ..it depends what technologies we are using
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What are the types of inheritence models and describe how they work like vertical inheritence and horizontal
AjaySinghBhati
- Apr 30th, 2010
There are three types of inheritance mapping in hibernate1. Table per class hierarchy2. Table per subclass3. Table per concrete class In hbm.xml file you need following enteries1. For T...
Jaleel Akbar
- Jul 12th, 2007
Table per concrete class using implicitpolymorphism can also be added as inheritance mapping in hibernate
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What is component mapping in hibernate?
Thomas John
- Sep 21st, 2015
Hibernate component represents as a group of values or properties, not entity (table). I have a customer table that has address fields. I will create 2 models - customer, address. In this case, Addres...
mani.sivapuram
- Feb 21st, 2011
I will explain one realtime scenario here.Consider one Address class as given belowpublic class Address{private Integer doorNo;private String street;//provide setters and getters for above properties}...
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What is the difference between sorted and orderd collection in hibernate?
arindam_0006in
- May 19th, 2008
A component is an object saved as a value, not as a reference A component can be saved directly without needing to declare interfaces or identifier properties Required to define an empty constructor Shared references not supported
arindam_0006in
- May 19th, 2008
For Sorted Collection:A sorted collection is sorting a collection by utilizing the sorting features provided by the Java collections framework. The sorting occurs in the memory of JVM which running Hi...
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What is the main difference between Entity Beans and Hibernate ?
shashi1983
- Nov 22nd, 2008
The main diffrence between Entity Bean and hibernate is Entity Bean is a heavy weight component and hibernate is a light weight component.
nitinpokhriyal
- Jul 16th, 2008
It is not right answer as given by ranveer.Entity beans now become JPA so it has all the feature which hibernate has. All the application server has to provide implementation of jpa using presistent p...
Hibernate Interview Questions
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