How to evaluate entity comparison (equal) statements in JPQL: Is it through identity comparison, equals() or something else?
I spent a few hours Googling and completed the Hibernate and JPA s
Category: Opensource
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NHIBERNATE: Add the entity to many-to-many collections only via ID
I am looking for shortcuts. I have some NH entities with many-to-many relationships. Something like this:
public class Customer: EntityBase
{
public virtual IList Categories {get; set; }
}
p
Hibernate verifier Change the locale at runtime
I created an application with hibernate and used comments for verification.
I realized that to translate the message into my language, I must put it in the resource folder A file called Validation
Problems when using Hibernate and SQL Server 2008
I have a problem with Hibernate and SQL Server 2008. When I try to save an object to the database, Hibernate will throw this:
could not retrieve snapshot: com.my.MyClass
Caused by: com.micros
Hibernate – @AttributeOverride does not use inheritance
I tried to change the column name in the subclass table, but I will not change it with the @AttributeOverride annotation.
@ Entity @Table(name=”emp”)
@Inheritance(strategy=InheritanceType.TAB
Hadoop – Hive query stays 99%
I use left join to insert records in Hive. When I set limit 1 query, but for all record queries, it stays at 99% to reduce jobs.
Insert overwrite table tablename select a.id, b.name from a le
Hibernate inheritance – Reference entity using @mappedsuperclass comment
@MappedSuperclass
public abstract class AbstractBaseModel{ }
@MappedSuperclass
public class Person extends AbstractBaseModel {}
@Entity
public class APerson extends Person {}
@Entity
public class B
Hadoop – Is Cassandra for OLAP or OLTP or both?
Cassandra does not comply with ACID like RDBMS, but CAP. Therefore, Cassandra selects AP from CAP and leaves it to the user for adjustment consistency.
I definitely can’t use it. Cassandra conduct
Hadoop – Kafka Spark streaming: Unable to read
I am integrating Kafka and Spark, using spark-streaming. I created a theme as a producer of Kafka:
bin/kafka-topics.sh –create –zookeeper localhost:2181 –replication-factor 1 –partitions
Use Hibernate JPA 2.1 to deploy applications to IBM WebSphere will generate nullpointerException
We are trying to deploy a Java 7 Spring MVC application to IBM WebSphere 8.5.5.2 server using Hibernate. The application is running fine on the Tomcat server, but we cannot run it in WebSphere .