Clob « Data Type « JPA Q&A





1. Hibernate crops clob values oddly    stackoverflow.com

I have a one to many relationship between two tables. The many table contains a clob column. The clob column looks like this in hibernate:

@CollectionOfElements(fetch = EAGER)
@JoinTable(name = NOTE_JOIN_TABLE, joinColumns = ...

2. Strings > 4000 to CLOB conversion using hibernate    stackoverflow.com

i have a java class persisting a string (>4k) into a database table into a CLOB field. If the string is less than 4k then it works. I have the field annotated using ...

3. Hibernate > CLOB > Oracle :(    stackoverflow.com

I am trying to write to an Oracle clob field a value over 4000 characters. This seams to be a common issue but non of the solutions seem to work. So ...

4. ORA-22835 using JPA (Buffer too small)    stackoverflow.com

I am trying to persist an Entity with a @Lob annotated String field. The content of that fiels if bigger than the 40k buffer size limit. The first problem I had ...

5. How to create a Clob in JPA in an implementation agnostic way    stackoverflow.com

I am using Ejb3 and JPA (based on Hibernate and Oracle 10g at the moment) I have an entity that contains a clob

@Entity
@Table(name = "My_TAB")
public class ExampleEntity implements java.io.Serializable {

   ...

6. read a clob from oracle using hibernate    stackoverflow.com

I am having a big headache in finding out what is the problem here .. I get a session from the session factory and then get the clob out of the ...

7. Question about Clob object in Hibernate    stackoverflow.com

In the previous versions of Hibernate, it had the static api Hibernate.createClob(String), which allowed to create Clob object from String. Now that this is deprecated, what is the proper way to store ...

8. How to store a string(more than 4 KB) into CLOB data using hibernate    coderanch.com

I can't answer you directly since I don't use Hibernate directly, but I can point you to something that might help. The Spring framework provides a support class for handling CLOBs and BLOBs. I'm using the BLOB support class to store 16kb byte arrays. Since it's open source, you can get the source and check out how they handled this.

9. Hibernate Clob    coderanch.com

Hi all, I have a problem with extracting java.sql.Clob data from database using Hibernate. The following is my code, could you please help me out? I am using db2 7.1 Thanks. public Log loadData(int pk) { Session session = null; ReprintLog log=null; Transaction tx = null; try { session=HibernateSessionFactory.currentSession(); tx = session.beginTransaction(); log = (Log)session.load(Log.class, new Integer(pk)); java.sql.Clob xml = log.getMsgdata(); ...





10. hibernate clob    coderanch.com

11. CLOB in Hibernate    coderanch.com

Hello, I had a column defined as Varchar2(4000) in Oracle database and defined as the following in the Value Object. @Column(name="VALUE") public String getValue() { return this.value; } I needed to change the column to allow more than 4000 chars, and since the maximum limit of varchar is 4000, i needed to change it to CLOB. So, i changed the data ...

12. Clob to String (Using Hibernate)    coderanch.com

Hello guys, I generated Beans from Oracle 10g tables. I have Clob fields. I want to get info from my form textarea which is injected in my bean. I got the following error : Failed to convert property value of type [java.lang.String] to required type [java.sql.Clob] for property rapComment; nested exception is java.lang.IllegalArgumentException: Cannot convert value of type [java.lang.String] to required ...

13. Hibernate Oracle clob conversion issue    coderanch.com

I am facing a issue while committing data into database using hibernate. We are using Hibernate3 and oracle 10.2 client. Kindly find below the exception. Caused by: org.jboss.util.NestedSQLException: Error; - nested throwable: (java.lang.ClassCastException: org.hibernate.lob.SerializableClob cannot be cast to oracle.sql.CLOB) at o 20:32:18,925 INFO [STDOUT] rg.jboss.resource.adapter.jdbc.WrappedConnection.checkException(WrappedConnection.java:873) at org.jboss.resource.adapter.jdbc.WrappedStatement.checkException(WrappedStatement.java:852) at org.jboss.resource.adapter.jdbc.WrappedPreparedStatement.setClob(WrappedPreparedStatement.java:812) at gov.nih.nci.system.util.StringClobType.nullSafeSet(StringClobType.java:101) at org.hibernate.type.CustomType.nullSafeSet(CustomType.java:145) at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1826) at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:1803) at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2059) ... 76 ...

14. CLOBs    forum.hibernate.org

I got it to work. (with some help from my smart friends) Evidently all I had to do is to leave my setSomeString(String s) and getSomeString() methods alone... meaning that they don't need to take an argument of type CLOB or return a CLOB. My configuration file need to specify the type="text" For example: ...

15. Hibernate with CLOB    forum.hibernate.org

Hi All, Has anyone used CLOB objects with Hibernate. Our application requires fetching and updating CLOB objects. We have mapped the datatype to java.sql.clob. DB fetch happens fine without any issues. We convert the String which comes from the front end to java.sql. clob using Hibernate.createClob() and do a merge. The issue is it does not throw any exception but does ...

16. Hibernate > CLOB > Oracle :(    forum.hibernate.org

I am trying to write to an Oracle clob field a value over 4000 characters. This seams to be a common issue but non of the solutions seem to work. So I pray for help from here. Down and dirty info: Using Oracle 9.2.0.8.0 ojdbc14.jar Hibernate3 implementing pojo's with annotations Tomcat 6.0.16 Oracle 10.2.x drivers C3P0 connction pool provider In my ...





17. using CLOB with hibernate 3 and Oracle    forum.hibernate.org

18. java.lang.UnsupportedOperationException: Clobs are not cache    forum.hibernate.org

Hi, I'm having one entity as EDIRequest and child as EDIRequestArchive. In archive entity I've 4 CLOB fields. Whenever I'm fetching(not through session.load, using normal HQL) fields from EDI Request (not archive), its throwing below errors in JBoss server. The same code is running fine in Oracle Full Suite. java.lang.UnsupportedOperationException: Clobs are not cacheable at org.hibernate.type.ClobType.disassemble(ClobType.java:84) at org.hibernate.type.TypeFactory.disassemble(TypeFactory.java:422) at org.hibernate.cache.entry.CacheEntry.(CacheEntry.java:46) at ...

19. Informix and CLOB issue    forum.hibernate.org

persistence.xml org.hibernate.ejb.HibernatePersistence EBUS.XA.DATASOURCE