HashMap « Map « JPA Q&A

1. About Hibernate save using Dynamic-Map entity mode stackoverflow.com

In the following example, how can I save the value of role to the role with id=1 without loading it? I have tried:

Map user = new HashMap<String,Object>();

user.put("address","Address test");
user.put("role",1);

session.save("User",user);

But that results in: ...

2. Mapping Hashmap of Coordinates in Hibernate with Annotation stackoverflow.com

3. mapping hashMap values to tables based on keys in hibernate stackoverflow.com

I need to insert java objects in hashmap into different tables where table name will be maintained in HashMap as key suppose HAshMap ...

4. Hibernate(JPA) mapping a HashMap stackoverflow.com

Prereading: How to persist a HashMap with hibernate My problem revolves aroung the following structure that I want to map with JPA:

Map<User, List<POJO>>

My POJO is very simple (no composite types etc., just ...

5. [Hibernate] Mapping key/value pairs in a HashMap coderanch.com

I'm fairly new to all this and am having a conceptual problem. I've been wading through documentation, but I'm not even sure where I'm supposed to be looking anymore :S I had an idea that if I use a base class as below, then users could subclass it for there own logic (storing all data in the map rather than instance ...

6. Hibernate mapping HashMap to row coderanch.com

7. Mapping Hashmap of Coordinates in Hibernate with Annotation forum.hibernate.org

I've just started using hibernate and I'm trying to map walking distance between two coordinates into a hashmap, There can be many connections from one "FromCoordinate" to another "ToCoordinate". I'm not sure if i've implemented this correctly, What annotations do i need to map this MashMap? Thanks HashMap> coordWalkingConnections = new HashMap>(); Code: @Entity @Table(name = "COORDCONNECTIONS") public class CoordinateConnection implements ...

8. JPA Mapping of own Class (HashMap) forum.hibernate.org

Caused by: org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class: worldOfJingu.CityData.military[java.lang.Integer] at org.hibernate.cfg.annotations.CollectionBinder.bindManyToManySecondPass(CollectionBinder.java:1071) at org.hibernate.cfg.annotations.CollectionBinder.bindStarToManySecondPass(CollectionBinder.java:602) at org.hibernate.cfg.annotations.MapBinder$1.secondPass(MapBinder.java:79) at org.hibernate.cfg.CollectionSecondPass.doSecondPass(CollectionSecondPass.java:66) at org.hibernate.cfg.Configuration.secondPassCompile(Configuration.java:1163) at org.hibernate.cfg.AnnotationConfiguration.secondPassCompile(AnnotationConfiguration.java:329) at org.hibernate.cfg.Configuration.buildMappings(Configuration.java:1148) at org.hibernate.ejb.Ejb3Configuration.buildMappings(Ejb3Configuration.java:1226) at org.hibernate.ejb.EventListenerConfigurator.configure(EventListenerConfigurator.java:173) ...

9. Mapping HashMap or HashTable as an Entity forum.hibernate.org

i have one situation where, there is a dropdown which contain all the tables from the schema, when i select a table i need to generate a data entry form for that table. when i select another table the data entry form should change according to the table columns. here dynamically the table fields are changing depends on the table selection ...

10. Map a HashMap using annotations instead of xml forum.hibernate.org

maity_bi wrote: This code maps a HashMap but I would like to do the same using annotations. Is it possible? Clould you help me? Thaks in advance!!! You cannot use directly HashMap, but you can use Map: Code: //imports @Entity @Table(name="Person") public class Person { private String name; private int id; private ...

11. Mapping a HashMap to a @Lob forum.hibernate.org

12. HashMap Mapping help forum.hibernate.org

Hi, I'm having some problems in storing a Java HashMap. What is the meaning of key, index and element? When i try to store the object i get a class cast exception to set the Property values os the element. Thanks in advance, Joao Rangel java.lang.ClassCastException at tipos.TipoDeContentorMetaClass4.setPropertyValues() at ...

13. Mapping a HashMap forum.hibernate.org

Hello, I'm trying to map a class (call it 'ItemsMap') which has a java.util.Map attribute (call it 'items'). My problem is that the element type I'm trying to use is another class (call it 'Item') which I have mapped in a separate hbm.xml file. I have tried using the 'class' attribute of but the SchemaGenerator seems to ignore it and ...

14. Please help!! Mapping a HashMap. forum.hibernate.org

Hello, sorry, but this is my 3rd posting about this subject. I had tried some answers but it doesn't work. I want to map the following class structure: Code: public class Template { public HashMap containers = new HashMap(); public void setSingleContainers(Map singleContainers) { this.containers = singleContainers; ...

15. Best way to Map HashMap or java.util.Properties class ???? forum.hibernate.org

Hibernate version:2.1.6 using:Oracle 8i Hi, I am new to Hibernate. I have some classes with simple HashMaps or Properties members. they are usually contains Key-string and Value-string can someone please show me what should be the Mapping for such a class and how should it look like in the database ? I tried somthing like : class : Code: public class ...

16. Need help mapping Hashmap of other class forum.hibernate.org

17. mapping a hashmap only forum.hibernate.org

I'm using hibernate in my new project and so far I love it :) I managed to map classes with collections etc, but now I'd like to persist this "configuration" class and I have no clue how to do this without declaring multiple tables. I'd like to have one "configuration" table with a key and value. The entire table should be ...

18. mapping in HashMap instead of xml forum.hibernate.org

19. Hibernate Mapping (HashMap) Query/Problem forum.hibernate.org

Hi I have a problem using maps with Hibernate v3 that is best explained using the Department Employee one to many scenario. My dept.hbn.xml mapping would be: [code] DEPT_SEQ 100

20. Need to map the Hashmap keys to database table columns. forum.hibernate.org

3.1 I need to dynamically select the columns of a database table for persistance. My data comes as an XML and using some rules, the db table column to which the data (from a particular xml node) needs to be persisted. This I do using a hashmap but I need to be able to map the keys of the map to ...

21. About Hashmap' Mapping forum.hibernate.org

Hello, i am using Hibernate to map a Hashmap object . the key of the Hashmap is a string, the value of it is a customer object. I map the Hashmap object to database with the lazy mode. But when i invoke the size() method of the hashmap. Hibernate will read all the customer object' data from the database and save ...

22. About Hashmap' Mapping forum.hibernate.org

23. Mapping a hashmap of objects forum.hibernate.org

Newbie Joined: Sat May 12, 2007 10:33 am Posts: 1 Hi, I'm trying to map a HashMap into my database but cannot find the right way to do it. I have a "Gallery" class who has a HashMap collection of Pictures. But when I use the attached mapping document I get this exception: Code: Caused by: org.hibernate.MappingException: Repeated column in mapping ...

24. HQL / JPA QL to navigate the elemets of a Map (hashmap) forum.hibernate.org

Hi, I have the following mapping in a class called Address: @CollectionOfElements(fetch=FetchType.EAGER) @JoinTable(name="ADDRESS_ADDRESSROWS", joinColumns=@JoinColumn(name="ADDRESSROW_ID")) private Map addressRows = new HashMap (); Now I want to make a HQL / JPA QL query that navigates through the elements of the Map. How do I address them? I want to ask something like this: select from Address as a inner join ...

25. mapping a HashMap collection to a single row forum.hibernate.org

Thanks. That link partially helps. Consider my scenario --> Class Child extends Parent{ } Class Parent{ private [u]transient[/u] Component comp1; getters..setters.. } Class Component{ private Component2 comp2; getters..setters.. } Class Component2{ private Map members; getters..setters.. } Now I want to transform elements of Map ( members) to columns of a row of rdbms table Parent (see thread). So I create CompositeUserType ...

26. Exotic mapping (value type with internal Hashmap) forum.hibernate.org

I'm not really sure how to map the following case with the latest hibernate. I have two objects: a Table class and a TableRow class. I included the basic definition of each one. Table is an entity and TableRow is a value type. The complexity comes from TableRow using a Map to store the column names and values. We want to ...

27. Mapping problem: HashMap forum.hibernate.org

Hello everyone, I have the following problem and was not able to find a solution, so you are my last chance. I am using Hibernate with annotations to generate my database tables. Everything works fine, except for the property relevance, which is a Map which has a enum as key and enum as value. The value of the Map is mapped ...