Type « Column « JPA Q&A





1. JPA or Hibernate - Joining tables on columns of different types    stackoverflow.com

Is there a way to tell Hibernate to wrap a column in a to_char when using it to join to another table or conversely convert a NUMBER to a VARCHAR? I ...

2. How to use custom type in JPA column?    stackoverflow.com

I have a class:

public class Email {
  private String name;
  private String domain;
  public String toString() {
    return name + "@" + domain;
  } ...

3. JPA target entity type based on column value    stackoverflow.com

I'm trying to move some old code from hand-made persistence to Hibernate. The issue here is a peculiar mapping where the target entity type/table is defined by a column value. Example database ...

4. get columns name and types of table with jpa    java-forums.org

hii all, i tried to retreive from my data base all columns and types of columns af tables, am using jpa, i use also netbeans , until now no problem, i used this code to have my table feilds: Portefeuille pf = new Portefeuille(); Field[] v = pf.getClass().getDeclaredFields(); for (int j = 0; j < v.length; j++) { pw.print(v[j].getName() + ";"); ...

6. How to get the underlying column type for a Set?    forum.hibernate.org

How do I get the underlying type of the field in the following example? What I'm currently doing is something like this (condensed version) Code: Class clazz = //the Portfolio class object EntityPersister classMetadata = ((EntityPersister)sessionFactory.getClassMetadata(clazz)); Type [] propertyTypes = classMetadata.getPropertyTypes(); String [] propertyNames = classMetadata.getPropertyNames(); Type columnType; then I match the column name I'm interested in ("portfoliotocustomers") against the propertyNames ...

7. Custom Value Type for Columns with Comma Seperated Values?    forum.hibernate.org

I've got a legacy database model that frequently uses columns with comma seperated String enumerations, like "cat,dog,bird". I can't change the db model, but from my object model I'd like to access the list of values stored in one of these columns like a Collection, e.g. I want to use get(), append(), insert(), remove() and iterator(). toString() should yield the original ...

8. Multi-Column User Types    forum.hibernate.org

Hibernate version: 2.1.6 I've seen the DoubleString type, as an example of a UserType implementation which deals with more than one column. What I don't understand is how to communicate which of the columns each name relates to. This is important if I have two columns of different types. Is the order of the names guaranteed to be the order they ...





11. "column" must be declared for element type "o    forum.hibernate.org

12. Unknown type '246 in column 1 of 2    forum.hibernate.org

14. Could not determine type for: java.util.Set, for columns:...    forum.hibernate.org

Author Message jimjamz12 Post subject: Could not determine type for: java.util.Set, for columns:... Posted: Wed Nov 07, 2007 5:11 pm Newbie Joined: Wed Nov 07, 2007 4:28 pm Posts: 1 Location: Orlando, FL Hibernate version:3.2.5.ga I'm building my Entity classes and I'm trying to configure cardinality for a OneToMany between 2 of, Player and GameStat. I've read a through ...

15. Problem using hibernate with postgres xml column type    forum.hibernate.org

Hi, I have a problem using hibernate with the postgres sql specific column type xml. Code: @Column(columnDefinition="XML", name="document", nullable=false) private String xml = null; public String getXml() { return xml; } public void setXml(String xml) throws ConfigurationException { ...

16. Problem registering custom nvarchar2 column using @Type    forum.hibernate.org

Hi, I have a problem with defining custom mapping for a column. I want to define a custom column for Unicode strings, so I extended StringType as StringType2, and overrided getName to return "string2". I also extended Oracle10gDialect as follows to register my new type with code -999: Code: public class MyOracle10gDialect extends Oracle10gDialect { public MyOracle10gDialect() { ...





17. wrong column type in hibernate    forum.hibernate.org

Hibernate version: 3 Jboss 4.2 + Seam2.1 + Hibernate3 in Eclipse Ganymede Im trying to built an application that serch for results in an SQL Server 2005 table. This table have some columns of type decimal(5,2), and i have declare the fields on the entity to receive them as BigDecimal. But wend running on Jboss i get the this error: Code: ...