Top "Jdo" questions

Java Data Objects (JDO) is a standard way to access persistent data in databases, using plain old Java objects (POJO) to represent persistent data.

Hibernate vs JPA vs JDO - pros and cons of each?

I'm familiar with ORM as a concept, and I've even used nHibernate several years ago for a .NET project; however, …

java hibernate orm jpa jdo
JDO vs JPA for Java on Google App Engine

I want to develop my project on Google App Engine with Struts2. For the database I have two options JPA …

java google-app-engine jpa jdo
Unsure if I understand TransactionAwarePersistenceManagerFactoryProxy

I am trying to use the org.springframework.orm.jdo.TransactionAwarePersistenceManagerFactoryProxy in my Spring project, but I am not sure …

java spring persistence dao jdo
What's the easiest way to persist java objects?

Right now I have java program whose classes are currently POJOs and stored in volatile memory. These need to be …

java persistence jdo object-persistence apache-torque
How to solve validation error on xsi:noNamespaceSchemaLocation in jdoconfig.xml

Since I updated today to GAE 1.7.2.1, I'm having validation errors in eclipse in all my jdoconfig.xml files. I have …

eclipse google-app-engine jdo xsd-validation
Why put a DAO layer over a persistence layer (like JDO or Hibernate)

Data Access Objects (DAOs) are a common design pattern, and recommended by Sun. But the earliest examples of Java DAOs …

architecture persistence data-access-layer jdo dao
Difference between JPA and JDO?

want to develop my project on Google App Engine .I want to use google big table as database. For the …

jpa jdo
Java AppEngine: JDO or JPA, How to choose?

Pros and Cons of choosing JDO or JPA for a Grails Application that will run on Google AppEngine

java google-app-engine grails jpa jdo
Error HBASE-ZOOKEEPER : Too many connections

I am using Hbase-Hadoop combination for my application along with Data Nucleus as the ORM. When I am trying to …

jdo hbase datanucleus apache-zookeeper
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