hibernate-mapping

I'm trying to set up a small working sample of Hibernate that I found here However when I run the code I get the follwing error Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not insert: [com.sample.Person] at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:92) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66) at org.hibernate.id.insert.AbstractReturningDelegate.performInsert(AbstractReturningDelegate.java:64) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java

I am developing a travel management application. The design in question is something like following : Each person in a tour is designated as a Traveler. Each Traveler has a Passport. Now, a Traveler can be a MainMember or a SubMember, depending on whether or not he is the head of the family. A MainMember decides stuff like TourPackage, total amount for his travelling family, etc. A SubMember is dependent on the MainMember while travelling. So, if a MainMember is deleted, all its SubMembers have to be deleted as well. So, A Traveler has a Passport. (One to One relationship) A Traveler is either

Could you please help me to persist map of strings with Hibernate? Map values come from client and are random, so I don't want to store separate table for map's values Exception Caused by: org.hibernate.AnnotationException: Associated class not found: java.lang.String Code @Entity public class UserConfig { @Id @SequenceGenerator(sequenceName = "CONFIG_SEQ", name = "ConfigSeq", allocationSize = 1) @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "ConfigSeq") private Long id; @ElementCollection(targetClass = String.class) @CollectionTable(name = "MAP") @MapKey(name="key") @Column

If do not have time please have a look at the example I have two types of users, temporary users and permanent users. Temporary users use the system as guest just provide their name and use it but system needs to track them. Permanent users are those that are registered and permanent. Once user create a permanent record for himself, I need to copy all the information that has been tracked while user was a guest to his permanent record. Classes are as following, @Entity public class PermUser{ @Id @GeneratedValue private long id; @OneToMany private List Favorites favorites; .... } @Entity public

I need to configure hibernate to avoid creating duplicate rows, (although the row exists it creates a new one, and since only one filed is set it set all the rest to NULL) Lets say I have a row as following id des index age 1 MyName 2 23 Although I just set MyName as des and it already exists in the Name table hibernate create a new row as following id des index age 1 MyName 2 23 2 MyName Null Null << new row with null values will be created rather than updating the previous one When I want to sa . So I have added the following annotation to my class but it crossed the Entity, and

I'm trying to join 4 tables using hibernate criteriabuilder.. Below are the tables respectively.. ` @Entity public class BuildDetails { @Id private long id; @Column private String buildNumber; @Column private String buildDuration; @Column private String projectName; } @Entity public class CodeQualityDetails{ @Id private long id; @Column private String codeHealth; @ManyToOne private BuildDetails build; //columnName=buildNum } @Entity public class DeploymentDetails{ @Id private Long id; @Column private String deployedEnv; @ManyToOne private BuildDetails build; //columnName=buildNum } @Entity

I am using SEAM 2/Hibernate along with PostgreSQL 9 database. I have the following table Active Band =========== active_band_id serial active_band_user text active_band_date timestamp active_band_process integer I would like to add a constraint that ensures each new entry has a unique combination of active_band_user and active_band_date. There could potentially be many attempted inserts per second so I need this to be as efficient as possible, is there a SEAM / hibernate annotation I can use in the entity mapping? Thanks in advance There is no Hibernate annotation that checks uniqueness before