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1. Java Persistence / JPA: @Column vs @Basic    stackoverflow.com

What is the difference between @Column and @Basic annotations in JPA? Can they be used together? Should they be used together? Or does one of them suffice?

2. Is there a way to get only the changed columns from an object using Hibernate?    stackoverflow.com

In a persistent object, If i change only one field, Is it possible to find out the changed field only through Hibernate? I know I can get the entire old row ...

3. Hibernate: virtual column    stackoverflow.com

I'm looking for a way to associate a entity with another entity purely through hibernate (no extra relation db column mappings) and not requiring separate DAO calls. I searched around for ...

4. Hibernate Java problem with persistence columns    stackoverflow.com

I keep getting this error and can't find how to fix it. Could not determine type for: org.digitalcorpse.pirates.Pirate, for columns: [org.hibernate.mapping.Column(pirate)]

package org.digitalcorpse.pirates;

import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.OneToOne;

@Entity
public class Pirate {
    ...

5. how to calculate SUM of a column in rich:datatable?    stackoverflow.com

hi i want to calculate the sum of a column and set it in another column total in my bean i set :

public float getTotal() {
      ...

6. is @Temporal preferred to @Column columnDefinition?    stackoverflow.com

Which is best practice?

@Column(name = "FOO", columnDefinition = "TIMESTAMP")
private Date foo;
Or
@Column(name = "FOO")
@Temporal(TemporalType.TIMESTAMP)
private Date foo;
The documentation suggests that using columnDefinition is non-portable ...

7. Formatting Columns in Hibernate    stackoverflow.com

I have a Money field in Sql server Table and mapping to double in hibernate. how to format as 999,999?(three to three separate) for example: 45000.0 ---> 45,000

8. Hibernate - compound column?    coderanch.com

All you are doing with an ORM is mapping entities to POJOs. If you have an entity which defines a date as three fields, rather than using a DATE or TIMESTAMP (I can think of no good reason for doing this, but I'll assume you have one) then these values just get mapped to properties in a POJO. So rather than ...

9. how to define password column in hibernate    coderanch.com

"password" data type? Which database are you using? Sounds like a vendor-specific data type, if it is I'd keep this out of the mapping (just use a character type and encrypt the text). In Hibernate you treat functions like they were named queries. Have a read of the docs on named queries for more info.





10. Autoincrement column in iSeries & Hibernate (URGENT)    coderanch.com

Hi All, I am facing problem on iSeries using autoincrement columns. Version(s) ========== Hibernate : 3.0 iSeries : V5R4 Problem ======= If I execute the INSERT SQL on table having autoincrement column, then its working fine. But when I am trying to insert record into the same table using Hibernate, I am getting following error. [10/31/07 9:27:41:600 UTC] 0000002a JDBCException W ...

11. elt column hibernate    coderanch.com

Hi I am new to Hibernate. I am trying to implement a many-to-many association. I have a simple scenario where I have two entities three tables. one is Teacher.java with teacher table containg id and name. the other is Student.java with student table containing id and name as well. let me show you my java files, my tables and the hibernate ...

12. Hibernate comparing columns    coderanch.com

13. hibernate unknown column    java-forums.org

11:21:45,838 ERROR JDBCExceptionReporter:72 - Unknown column 'rel_pv_mar0_.tc_par_id' in 'where clause' Exception in thread "main" org.hibernate.exception.SQLGrammarException: could not execute query using iterate at org.hibernate.exception.SQLStateConverter.convert( SQLStateConverter.java:67) at org.hibernate.exception.JDBCExceptionHelper.conver t(JDBCExceptionHelper.java:43) at org.hibernate.loader.hql.QueryLoader.iterate(Query Loader.java:420) at org.hibernate.hql.ast.QueryTranslatorImpl.iterate( QueryTranslatorImpl.java:318) at org.hibernate.engine.query.HQLQueryPlan.performIte rate(HQLQueryPlan.java:177) at org.hibernate.impl.SessionImpl.iterate(SessionImpl .java:1156) at org.hibernate.impl.QueryImpl.iterate(QueryImpl.jav a:46) at PvSelect.marchi(PvSelect.java:92) at PvSelect.main(PvSelect.java:294) Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorEx ception: Unknown column 'rel_pv_mar0_.tc_par_id' in 'where clause' at sun.reflect.NativeConstructorAccessorImpl.newInsta nce0(Native Method) at ...

14. getSingleResult and "The column position 1 is out of range"    forum.hibernate.org

Dear all, I am encountering problems when issuing getSingleResult queries using the Glassfish v3 "hibernate 3.5.0-0.2". These queries work fine if I uninstall the hibernate adon and bundle hibernate 3.3.1.GA with my wars. I'd really like to get into a position where I can use a shared hibernate library, so I have documented the problem here. The queries are along the ...

15. column privilege awareness (SOLVED)    forum.hibernate.org

Hi folks UPDATE: See the follow-up post below for a more detailed explanation of the issue and two ways to handle it with Hibernate. Original post: It seems that Hibernate isn't presently well equipped to deal with schema where column privileges vary depending on the user that Hibernate's JDBC connections are logged in as. Columns that for one user are insertable ...

16. Column Not Found : Hibernate    forum.hibernate.org

I have seen this issue being posted 'n' number of times, but dont have a clear neat way of resolving it. The problem is using hibernate + JPA , where if i use alaises, hibernate, fails to read the columns, And the reason i am using aliases because, i have the same column name in the tables i doin a join ...





17. More than one record in one column    forum.hibernate.org

Hi, I have a requirement where I need to show different records' column in one column. I am downloading the data from a database to an excel sheet where: ID, POLE, COUNTRY, LNG are the different columns. 1 1 1 1 1 1 2 1 I need to group the POLE, COUNTRY based on ID, LNG like this in my excel ...

18. One-2-one using more than 1 column    forum.hibernate.org

Hi, I am just a newbie in Hibernate but I have to face an old-ugly DB. Ugly because when we join tables, we always need to trim of fill in some spaces, even add some custom text to PK or FK. Here is the problem: An ENTITY (have standard id = id) have corresponding EMPLOYEE (with composite key of Emp_code, Some_code) ...

19. DateCreated, DateModified columns how to?    forum.hibernate.org

Using Hibernate 3.5.1 and MSSQL 2008 R2 Hi I'm trying to implement the typical DateCreated and DateModified columns. The issue I'm having is that the requirement is to get the date from the database not from the application. For DateCreated I can set the property mapping to generated = always and set a the column default value in the DB to ...

20. Using Restrictions to compare two columns    forum.hibernate.org

22. How to write scalar when no of columns are not fixed.    forum.hibernate.org

We are facing an issue while executing a stored procedure in hibernate. Issue: We have a stored procedure named GET_OFFER_CATEGORIES_PRO which takes country as an input argument and returns a ref cursor which contains categories and importers. The problem is that for different countries passed, the number of columns which the SP returns will vary (because no of importers for each ...

23. Hibernate Console Configuration doesn't show columns    forum.hibernate.org

Hi all, I'm new to Hibernate and I try to generate some pojo's and doa's from an existing database (PostgreSQL). As far as I understand I need to generate a Console Configuration before I can do this. I create de configuration and I see my database and I see the tables in the database but I don't see the columns in ...

24. Encrypt/Decrypt Columns    forum.hibernate.org

25. @NamedQuery for Selective Columns    forum.hibernate.org

Hello, I am trying to do a SQL query on selective columns of my database Table and hence populate selective fields of my @Entity pojo (performance reason). Let's say I have an @Entity class A that has p1, p2,p3 fields and I only need p1 and p2 to be populated. In order to achieve that, I changed my @NamedQuery's query="from A ...

26. Auto Drop Columns    forum.hibernate.org

Hi everyone.. I have a question regarding Hibernate syncing with the DB and the .hdm.xml file. Is there any way Hibernate could drop the column in the DB comparing the schema with the Metadata from the DB driver ??? For example, I have the properties "Name" and "Age" in my .hdm.xml file. I wish not to store the age and changing ...

27. ImprovedNamingStrategy and @Column    forum.hibernate.org

Hi, I am using a custom naming strategy which extends com.hibernate.cfg.ImprovedNamingStrategy to format my field names. There are instances however where I would like to specify the exact column name that I wish to generate in the database and therefore use the column annotation. However the name that I specify in the annotation is still passed to the naming strategy and ...

28. Repeated Column but Column is only used once?!    forum.hibernate.org

Author Message christianbeikov Post subject: Repeated Column but Column is only used once?! Posted: Sat Aug 27, 2011 10:59 pm Newbie Joined: Sat May 21, 2011 7:40 am Posts: 10 I have decided to use JPA Annotations instead of hbm.xml files because otherwise i can not use Envers and now i ran into a problem. I have the following ...

29. column ambiguously defined    forum.hibernate.org

select this_.ID as y0_, p2_.FIRST_NAME as y1_, p2_.LAST_NAME as y2_, md4_.MEDICAL_NUMBER as y3_, ...

30. Declare Final Columns    forum.hibernate.org

31. Calculating rank on an aggregate column in an SQLProjection    forum.hibernate.org

String sqlProjection = "(select count(*) from IPTStatistic stat2 where max(s.powerRestarts) > max({alias}.powerRestarts)) as rank)"; ProjectionList list = Projections.projectionList(); list.add(Projections.sqlProjection(sqlRankQuery, new String[]{"rank"}, new ...

32. repeated columns workaround?    forum.hibernate.org

I get net.sf.hibernate.MappingException: Repeated column in mapping for collection: co m.studentuniverse.farefilter.persistent.Fares.priceCostCalc column: prcolo_id at net.sf.hibernate.collection.CollectionPersister.checkColumnDuplicatio n(CollectionPersister.java:838) for the following mapping. Is there a way to let it use a column for more than one entry (or did I miss what the real problem is?) Code:

33. Different "Repeated column" behaviour in class and    forum.hibernate.org

Hello, I was playing with Hibernate and noticed that multiple mapping of the same column behaves differently in class and component. If I create multiple mappings under class and set insert and update to false (see "CITY MAPPING 1"), everything works fine. But if I do the same thing under component (see "CITY MAPPING 2"), "Repeated column" is reported. Here are ...

34. Column Functions    forum.hibernate.org

Is there any way to join tables that do not have a specific mapping defined? Here is a simple example: select Header, Detail from Header as Header join Detail as Detail on Header.detailId = Detail.id When I try this I get "outer or full join must be followed by path expression". The join notation should be much more efficient than: select ...

35. Persisting only the columns I want.    forum.hibernate.org

I have an User object, with login and password as properties. I have mapped the class and when I save it, on the onSave method, I MD5 the password. Ok. On my web interface, while updating the user, I can't show the password, it comes empty (since I can't decript MD5 encription). If the user fills in the password, then I ...

36. Exclude Column    forum.hibernate.org

To whom it may concern, If I have a table that I don't want to include all the columns in certain tables for example the guid column in the table that is required by SQL server for replication, is that any way in hibernate that I can exclude those columns. Thanks Vivian

37. how to get info about columns metadata?    forum.hibernate.org

38. Approaches to M-N with additional columns    forum.hibernate.org

When I first learnt using Hibernate, I implemented the M-N as two 1-N relations with the relation table as if a separate ordinary class. It works fine, so far. I also found that there is another approach suggested in the tip & tricks of this site to implement the relation class as a composite element of the class ... My questions ...

39. How to implement nested arrays as columns?    forum.hibernate.org

My problem is: 1. The top-level class A holds an array of N (hundreds) second-level classes B. I would like to have each class B in this array as a COLUMN in the table, which represents A. However, standard Hibernate options map array elements to ROWS. 2. Each class B in the above-mentioned array, in turn, holds a sub-array of M ...

40. Can Example.create() create a column?    forum.hibernate.org

41. can i add some comment for the column    forum.hibernate.org

42. problems with image retrieval from bytea column....    forum.hibernate.org

Author Message dukeswharf Post subject: problems with image retrieval from bytea column.... Posted: Sun Feb 22, 2004 12:10 pm Regular Joined: Mon Jan 19, 2004 10:39 pm Posts: 84 Location: Nottingham, England Hi I am having a problem with image requests from a browser which in turn retrieves binary data from a postgreSQL table (ver7.4.1) and serves the data ...

43. Dynammicaly remove columns?    forum.hibernate.org

44. Retrieving only certain columns    forum.hibernate.org

Lets say you have the following table: CREATE TABLE MYTABLE { ID numeric (9, 0) IDENTITY NOT NULL, FIELD1 varchar(50), FIELD2 varchar(50), FIELD3 varchar(50), .... FIELD10 varchar(50), } And lets say you have two views of that data. One, is a table displaying all rows (or pages) of data, butonly displaying the ID, FIELD1 and FIELD2. The second view is a ...

45. Best approach with calculated columns    forum.hibernate.org

46. column ambiguously defined    forum.hibernate.org

47. column ambiguously defined    forum.hibernate.org

48. Column 'x1_0_' not found    forum.hibernate.org

49. Possible to persist column not in domain object?    forum.hibernate.org

Is it possible to persist column not in domain object? All of our legacy tables have a column called LOG_COUNTER, that was used for versioning with a mainframe 3GL. Is is possible to leave this property out of my domain object since i'm am not using it, and have a 0 inserted when I save()?

50. Strategy for calculated columns    forum.hibernate.org

51. Repeated Column problem    forum.hibernate.org

Hi I have a Cost table which is reused by 3 other tables that have Cost related information.... So I want to setup cascades from all 3 entities into this Cost table. The Cost table itself has a 'linking_id', which is to hold the primarykey of one of the three other entites.... It works fine if I only define one entity ...

52. User defined columns    forum.hibernate.org

In our project, there is a requirement that we should provide user-defined columns i.e user should be able to choose few columns and label them as they like and use it for their own purposes. The way we are thinking of providing this is to have a table with pre-defined number of different data types say, 3 strings, 4 dates and ...

53. Many-to-one with column sharing between primary/associaton    forum.hibernate.org

@hibernate.class table="TABLE_D" @hibernate.id generator-class="assigned"

54. determine if column has to be changed    forum.hibernate.org

You can enable dirty checking in Hibernate (select-before-update="true" in ), but I'm don't think you can narrow it down to a specific column, and there are performance implications. You could create an interceptor that implements onSave and/or onFlushDirty that will compare two states of the object. There are two ways to do this: 1) Use the object ID to load the ...

56. when i dont have a column...    forum.hibernate.org

57. Column 'Code' not found.    forum.hibernate.org

I'm making a normal HQL call that asked is to return a list of major themes and using many-to-many relationships, each has a list of themes that are under it. Many of the SQL called work fine, but some; and not consistently the same one come back with the following weird error. Oct 31, 2005 6:36:27 PM org.hibernate.util.JDBCExceptionReporter logExceptions WARNING: SQL ...

58. Cannot populate a column.    forum.hibernate.org

Author Message ndk Post subject: Cannot populate a column. Posted: Fri Nov 04, 2005 4:48 pm Newbie Joined: Fri Nov 04, 2005 4:26 pm Posts: 5 I have a simple database schema with 3 tables that I have used the ant reverse engineering tools to develop mapping classes and POJOs. A simple method to add a record to one ...

59. Difference between columns    forum.hibernate.org

60. Enforce multi-column uniqueness    forum.hibernate.org

Hibernate version: 3.1 Hi. I am having a problem figuring out how to have Hibernate enforce uniqueness on a set of columns. Basically, we have a legacy database that contains four(!) primary keys (the reason there are four is because other applications need it). From our application's perspective, we want to define uniqueness based on two of those columns. Now if ...

61. many-to-ome multi column    forum.hibernate.org

Hibernate version: 3.1 Mapping documents: Code: Proprieta configurazioni [b][/b] ...

62. "WARNING: Using non-qualified column reference"    forum.hibernate.org

I take it that this is manual HQL (as opposite to sql-delete, or an sql-query). If it's SQL, then put square brackets around the column name "number". If it's HQL, then I don't think that there's anything you can do, though you could try the square brackets to see if the HQL parser can deal with them.

63. Rel 1-to-many -how hibernate determine columns in relatation    forum.hibernate.org

Hello, I am using a one to many relation between two tables - users and cars, as every user can have more than one car. The user table has fields: (UserID, username, password, email...), the cars table has fields (CarID, CarName, CarOwner, dateOfProduction). I have the folloding mapping classes: ...

64. many-to-one on one column and one constant    forum.hibernate.org

If I have a table A, with column A1 and A2 and a table B with column B1. The association between A and B is B1 = A1 and A2 = 'some constant value' How can I map this with Hibernate? It appears that I can have associations on multiple columns by nesting a properties element, but I haven't been able ...

65. Hibernate3 warning Using non-qualified column reference    forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: hibernate-3.1.3 Name and version of the database you are using: Oarcle 10 I am trying to upgrade my Hibernate from version 2 to 3, and to extent got many of the things to work except this one which is giing me hard time, so thought someone might help me ...

66. Using non-qualified column reference warnings    forum.hibernate.org

Newbie Joined: Tue Jul 25, 2006 10:52 am Posts: 2 Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: 3.2.0.cr2 Mapping documents:

67. column ambiguously defined    forum.hibernate.org

Newbie Joined: Thu Sep 28, 2006 7:01 pm Posts: 1 Problem Description: Im using Hibernate 3.1.3 and creating a fairly large criteria. Involved in this criteria are a few situations where I do something like: Code: List ids = new ArrayList(products.size()); Iterator iter = products.iterator(); while (iter.hasNext()) { ids.add(new Integer((Product) iter.next().getId()))); } criteria.createCriteria("project.products", "prod").add(Expression.in("prod.id", ids)); Where there is a many-to-many relationship ...

68. Best way to implement "features" column    forum.hibernate.org

I'd like to get some opinions on what would be the best way to implement a features property. I have an object that has many "features" associated with it, properties such as "supports_xml" or "uses_department_code". I'd like to avoid a separate column for each feature, since there are so many of them. I'd also like to avoid creating a table linking ...

69. Many-To-Many with additional columns    forum.hibernate.org

Hi, I was wondering if what I'm trying to achieve is possible, and if so... how? Basically I have a many-to-many mapping between two objects, relating to three tables (one for each of the classes, and a third to link the two together). However, the third linking table needs to have additional values (namely last_updated_by and last_updated_date). i.e. TBL_A_TO_B needs 2 ...

70. Hibernate's handling of unmapped columns.    forum.hibernate.org

I have looked through the documentation and searched the forums, but i can't seem to find an answer to this question. So here goes: If I have a table with the following columns: id - int First name - string last name - string misc - string Ifi map a POJO to this table, but only the id, first name and ...

71. Resizing a column - hibernate not picking it up    forum.hibernate.org

72. Column Wildcard    forum.hibernate.org

I have the following HQL query FROM Project as p where p.description like '%SEARCH_TERM%' I would like to search all the columns, not just description, something like FROM Project as p where p.* like '%SEARCH_TERM%' I'm unsure of the syntax I should use for this. Is there any wildcard character to search every column of a table so that I can ...

73. ignore a column in    forum.hibernate.org

74. Problem with @UniqueConstraints on more than one column prob    forum.hibernate.org

Hi all, I am trying to set up a unique constraint on more than one column, But the hb2m2ddl script keeps on bombing: @Table(uniqueConstraints= {@UniqueConstraint(columnNames={"customer","run"})}) org.hibernate.AnnotationException: Unable to create unique key constraint (customer, run) on table Billing: customer not found The column customer does exists. I am using MySQL. Any ideas? thanks

75. i'm almost done but this elt column just appeared out of no    forum.hibernate.org

Newbie Joined: Sun Jan 27, 2008 11:45 pm Posts: 3 Hi I am trying to implement a many-to-many association. I have a simple scenario where I have two entities three tables. one is Teacher.java with teacher table containg id and name. the other is Student.java with student table containing id and name as well. let me show you my java files, ...

76. Hibernate, Postgres, and "inet" columns    forum.hibernate.org

Hello all. I am fairly new to Hibernate, and am trying to map an existing Postgres DB with Hibernate. One of my tables is set up with a "inet" field, which doesn't have an equivalent in Hibernate. What's the best practice for dealing with this? I found some code submitted where someone had written an Inet4AddressType.java - however, upon using it, ...

77. Is it possible to create a pseudo-column?    forum.hibernate.org

Need help with Hibernate? Read this first: http://www.hibernate.org/ForumMailingli ... AskForHelp Hibernate version: Hibernate 3.0 final Mapping documents:

78. Getting subset of columns    forum.hibernate.org

I am using Hibernate in JBoss with Annotations and my question is: Is it possible to get objects back from a hibernate call that only have a certain columns set? I.E. Some of my tables are very wide, and I might only need a couple of columns populated in the objects. Is there a way to get hibernate to return an ...

79. Do not want HJID and HJtype column    forum.hibernate.org

I have seen your HyperJAXB2 project . it is very good. I have one doubt about this project. This automatically generate the two columns in tables(HJID ,HJtype ). I do not want to generate these columns in my tables as well as in mapping files , java classes also. Please tell me. is it possible to generate code without having these ...

80. need to split or substring the result columns    forum.hibernate.org

81. How to set the wrapperclassses for column with HibernateTool    forum.hibernate.org

Hi , 1) I am able to generate hbm.xml with MiddleGen but I am getting OutOfMemory in my Eclipse if i select single Table .But I am able to generate hbm.xml for All table. I have gone through the forum I could not find the correct Solution. 2) Even am abel to generat Beans wit hHibernate Tool .But my issue is ...

82. comments in columns?    forum.hibernate.org

83. Virtual column    forum.hibernate.org

84. Unknown column, but I don't know why    forum.hibernate.org

Hi everybody, I get the following error: java.lang.Exception: org.hibernate.exception.SQLGrammarException: could not load an entity: [de.interkulturellesPortal.dao.training.TrainingDestiny#1] I try to get the object of TrainingDestiny with the id 1. This is my class TrainingDestiny: Code: @Entity @Table(name = "ikPortalTrainingDestiny") public class TrainingDestiny { private int trainingDestinyId; private boolean interculturalTraining; private boolean interculturalCoaching; ...

85. Column comments    forum.hibernate.org

86. NamedNativeQuery failing with unknown column    forum.hibernate.org

@SqlResultSetMapping( name = "FindFieldsResultSet", entities = { @EntityResult( entityClass = X.class, fields = { @FieldResult( name = "field1", column = "FIELD1" ) } ), @EntityResult( entityClass = Y.class, fields = { @FieldResult( name = "field2", column = "FIELD2" ) ...

87. Collation speficfication at column level    forum.hibernate.org

88. How to auto increment a non primary column?    forum.hibernate.org

89. Working with XML columns    forum.hibernate.org

Hi, I was looking for resources about XML persistence. I want to persist XML data because I have some brasilian taxes requirenments that are very assimetric and always changing. I've found something about bring N columns to one formatted XML in memory, but I was looking for the opposite: work with N pojos in memory and persist these into one XML ...

90. Different columns are not different???    forum.hibernate.org

Query query = session.createSQLQuery( "Select tmpljava_dimension_spec.code, tmpljava_dimension_spec.english, tmpljavadep_dimension_si_units.english " + // TODO: MLS "from tmpljava_dimension_spec, tmpljavadep_dimension_si_units " + "where tmpljava_dimension_spec.dim_specify like '" + dimCode + ...