Historically, Hibernate facilitated the storage and retrieval of Java domain objects via Object/Relational Mapping. Today, Hibernate is a collection of related projects enabling developers to utilize POJO-style domain models in their applications in ways extending well beyond Object/Relational ...

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Hibernate Native Query

This is my code to populate a Class and later convert it to JSON object. ...
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39 views

Implementing a long-running entity lock

Requirement I have an entity named ImportData which can be processed once in order to extract data from a file fed to the application. I need to make sure that, ...
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1answer
15 views

Dynamic field performance

A have a model with a dynamic field like so: ...
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1answer
92 views

Customize data types in a generated model with hibernate

I have a Spring/Hibernate application with the following domain class (irrelevant code stripped for brevity): ...
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1answer
84 views

Counting nonexisting records with foreign key

I have two tables Room and RoomDate. Here's the structure for Room Room roomID checkInDate checkOutDate roomType Here's the structure for RoomDate. They have a ...
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104 views

Generic DAO implementation

I wrote a generic DAO and two DAOs extending from it. I'm new at this pattern so I'm not sure if I'm doing this correctly. It seems to work fine though. I am using Hibernate for database access. Here ...
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63 views

Update operation with hibernate

I am creating a project about hotel reservations. I created a udirection one to many relationship between users and reservations. That is, A user can have many reservations. Here is the User class. ...
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139 views

NHibernate multiple select queries [closed]

I have a service called "Roles" allowing me to retrieve all 'items' on which I have permissions. I'm experiencing a interesting performance issue with NHibernate ...
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549 views

Hibernate and the Repository Pattern

I have already asked a question on stackoverflow on how to understand the Reporitory Pattern but I'm still having very big troubles in getting a good design implemented on my server. I'm desperately ...
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1answer
48 views

Retrieving three separate sorted lists of items

I need to search for records based on their area, postcode, city and sort each group ...
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265 views

JMS consumer for message retrieval and listening

I created a standalone Java application that acts as a consumer that retrieves/listens for messages inside an ActiveMQ queue. Planning to run two instances of these on different machines for high ...
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1answer
118 views

Moving DTOs between server/client

I am developing a server for a web-client. Basically it's just a simple CMS to modify some data. My problem is that I never had a project like this where I have to take care about the server and the ...
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1answer
63 views

Hibernate entity design with a Currency class

I have a class Currency, where I want to store business logic for working with currencies: ...
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1answer
2k views

Hibernate insert with foreign key

Ι have the following database: ...
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1answer
2k views

Onion Architecture

After doing a whole bunch of research on Onion Architecture, I have made an attempt at implementing this in a new system that we are developing. We have the Layers as per below: Domain ...
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155 views

Shortening JPA criteria query boilerplate

I've used hibernate for a long time. Recently I started using JPA, but I can't find a short way to write a simple select in less than these seven lines (the use of criteria is a must in this project). ...
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Nhibernate repository for MVVM applications

I am developing a single user .net desktop application that lists numerous (over 2000) contacts sorted by an algorithm. I use NHibernate and did consider a session ...
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1answer
293 views

Method to Return a Hibernate Session

Can this method be improved?: ...
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1answer
135 views

Automagic (or not quite so) Domain Model Class Validation

The Task I was assigned a small task, concerning validation of Domain-Model classes. The Validation for a String property of one of our Models was required to be unique across the whole Table. And ...
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2answers
125 views

Performance enhancement for collection manipulation

I have below snippet of code which gets all the available menu items for a zone(top or left)and adds the widgets for which user has access to an ArrayList collection. For now the ...
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1answer
882 views

Optimization of Hibernate DAO in desktop application

I'm working on medium sized desktop application (with around 100 tables in database). For persistence layer I decided to use Hibernate for the first time to avoid massive redundancy of code for ...
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2answers
228 views

Method for executing any type of HQL

I have written two methods that executes any type of HQL and returns data. Methods are like ...
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1answer
201 views

A flexible unit-of-work + repository pattern

Searching on Stack Overflow and Google, I find many and many different implementation for Unit-of-Work/Repository patterns, but none of that really convinced me; each had some small defect that ...
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1answer
63 views

Intern AuditSystem in DB and getting users from it

My project has a change on the database, so that every INSERT-UPDATE-DELETE action is logged with triggers on the DB. For that they have an extra table created: Table ...
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1answer
874 views

Generic util method to convert in single map from list of array of Object generally result of JPQL/ hibernate

I have designed a generic method to convert list of array of Objects to result into single map. This is working fine, but I want to check weather a key object is valid key (whether it is overriding ...
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1answer
180 views

JUnit - Test whether object was persisted or not

I am using Hibernate 4 and Spring Framework 4. I wrote a simple test to check whether object was persisted or not. All set values in confirmationEntity are required. In this test I relly on that, ...
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1answer
2k views

Create better Base DAO class

I created a DAO class which is base class for all other DAO classes. I use Spring Framework 4 and Hibernate 4. Question: Is there anything that could be done better? ...
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1answer
99 views

Loading, computation and writing 500.000 rows in database

first let me explain what I am trying to achieve here : I am supposed to compute some results, using data from several tables, filtered by a run_id. One of these tables has about 500.000 rows per ...
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1answer
2k views

NHibernate select with Query Over optimization for user roles base case

I have a complicated select procedure that I solved with a 5 query select, so I am posting it here to get suggestions on how I can shorten it up a bit. I am hoping that someone can help me make it a ...
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2answers
380 views

A query on Hibernate database design

I am writing a simple web application where I have a User entity and set of pre-defined questions to be answered by the User. The answers provided by the users for these questions would need to be ...
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1answer
2k views

Using generic methods for basic crud operations

Regarding re-usability, is this OK? What might go wrong? What would be a better design? Performance-related issues and any other comments are welcome. ...
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2k views

Managing Data access layer exceptions

I am developing a webapp using Spring MVC + Hibernate. I created a GenericDao class that implements basic data access methods, to be extended by all my concrete daos in the app. What I want advice or ...
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1answer
65 views

ORM Entity with many similar relationships

To provide some background context, I'm implementing a web-based solution (Java, Spring, Hibernate) that allows the creation/authoring of task-centric workflow documents. Basically a workflow ...
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142 views

Repetitive code for different Database Entities with same implementation

I have this code in LogInService ...
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1answer
8k views

NHibernate session and transaction implementation

In order to create loose coupling architecture on my web applications, I have created my own implementation for ORM, in this case, NHibernate. I want you please to review the code and tell me if you ...
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1answer
1k views

JPA connection : is this code is efficient enough

By reading some tutorial i have written some peace of code to do crud operation . I just want to know how is this code is efficient or how can i make better ? Here i am giving code of 3 class 1. ...
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1answer
1k views

Any problems in using hibernate's session.connection() to run native sql

In my project, they use Hibernate's session the below mentioned way and then save entity objects with in a transaction. ...
4
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1answer
5k views

Many-to-many hibernate mapping if link table is having extra columns mappings

I have many-to-many mapping with extra columns in the join table. The table structure looks like this: ...
4
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2answers
168 views

Hibernate @OneToMany relationship

I started to play around with Hibernate since yesterday and came up with the following example of one-to-many relationship example, but I am not sure if I am doing right and I have no one around me ...
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1answer
445 views

Is this the way to use HibernateCompositeUser type for handling localized contents?

I am trying to use HibernateCompositeUser type to handle i18n specific data in my application. I am trying to use the below approach. I have a table named ...
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1answer
1k views

Hibernate proxy converter for GWT

Here's a class that converts Hibernate proxies to normal classes. This is useful with GWT for example, when sending objects loaded from database to the GWT client. Please review it. ...
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1answer
414 views

Dao function using hibernate

I'm just wondering if the following is the best way to write a dao function. Should I get the entity manager before the transaction and close it after the transaction every time? Should I write ...
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2answers
560 views

Hibernate transaction advice [closed]

I'm new to Hibernate so I need some advice/direction on doing Transactions. I have a DAO like ...