convert « Data Type « JPA Q&A

1. Best way to convert from "Simple Class Name" to "Full Class Name" to Object in Java    stackoverflow.com

So lets say I have an object that it stored in a Database:

com.test.dummy.Cat

2. Error: Cannot convert value '0000-00-00 00:00:00' from column 13 to TIMESTAMP    stackoverflow.com

the field definition

 /** Date. */
  @Column(columnDefinition = "datetime")
  private Date date;

public void setDate(final Date date) {
    DateFormat dfmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
    ...

3. cannot convert clob to string    stackoverflow.com

I am trying to convert my clob object to string to display that on my JSTL page for that I am writting the following code

public String convertClobToString(Clob clob){
    ...

4. How can I convert a Hibernate String column to an Enum?    stackoverflow.com

I currently have a simple String field in a Hibernate persisted class:

 private String font = "Times New Roman";

5. Why does Hibernate convert an HQL Date parameter to empty string?    stackoverflow.com

Why does Hibernate convert a new Date() to an empty string when supplying as a parameter in a WHERE clause that compares it to a Timestamp field? (Database dialect is ...

6. Hibernate aliasToBean does not convert string to Enum    stackoverflow.com

I have the query below that is selecting a constant in the column list and I was expecting aliasToBean to convert the string to the appropriate enum type. I have mapped other ...

7. Hibernate DB2 convert Timestamp to Date ?    coderanch.com

8. hibernate Converting byte[] into SQL Blob    coderanch.com

9. Convert date to string in HQL    forum.hibernate.org

10. HQL - SQL SERVER CONVERT function equivalent    forum.hibernate.org

Good Afternoon, Is there a CONVERT type equivalent in standard HQL for formatting the decimal precision of Numbers (doing division in a HQL statement so what to restrict the precision in the Result set - not in the mapping)? For instance in SQL (Server) I may do something like this to limit precision to 3 decimal places: CONVERT(Decimal(15,3),A_TableOfSomeKind.EntryAmount) Cheers Mat

11. HOL function to convert string to integer    forum.hibernate.org

Hi, I have a varchar field in DB , which is use to store a series number which has the fromat "XYZ01" , and my requirement is to fetch the largest number of this field. I use "select max(substring(vt.voucherNumber,4)) ....." to do this. but its not retrieve max value . And this query is not getting executed after i modified the ...

12. Hql to convert text to number    forum.hibernate.org

13. Date Cast Convert Problem    forum.hibernate.org

14. How to convert char(1) column with T/F values into boolean?    forum.hibernate.org

15. convert NULL to 0 with integer type    forum.hibernate.org

16. Error converting the string 'N' to boolean    forum.hibernate.org

ERROR:org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:704) Servlet.service() for servlet jsp threw exception org.hibernate.exception.GenericJDBCException: could not initialize a collection: [com.regul8.objects.template.stage.StageTemplate.elementTemplates#801] at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:91) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:79) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.loader.Loader.loadCollection(Loader.java:1926) at org.hibernate.loader.collection.CollectionLoader.initialize(CollectionLoader.java:71) at org.hibernate.persister.collection.AbstractCollectionPersister.initialize(AbstractCollectionPersister.java:520) at org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:60) at org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1627) at org.hibernate.collection.AbstractPersistentCollection.forceInitialization(AbstractPersistentCollection.java:454) ...

17. how to work with both to_char and convert ?    forum.hibernate.org

Hello I'm looking for this solution too. Please, let me know how to convert any data type to string for comparison proposal. I would like to implement an universal text search function in all field of a table. How can I do it using HQL ? I tried to use the following: 1) (Works) from Category where lower(id)='8' 2) (does not ...

18. Unable to convert between java.lang.Integer and BINARY    forum.hibernate.org

Newbie Joined: Fri Mar 30, 2007 4:43 pm Posts: 3 In implementing some auditing code I took the time to make serializable some of our domain objects that were lacking the marker interface. But now it appears that somewhere in hibernate it is assuming one or more persistent class associations are saved/retrieved as blobs when in fact they have their own ...

19. Converting string property to sql type date    forum.hibernate.org

Hi, I have a domain object which has a date property "birthDate" but the type of this property is String. class PersonInfo{ String birthDate; ..... } In my hbm file i have following mapping .... Here i want hibernate to parse the given date string and store into database. ...

20. convert char or int value to String    forum.hibernate.org

How can I convert a char or int value into a String? For example: I have a table "USER" which has a column "ACTIVE" (Y/N), but could also be 0 or 1. My Domain object User has a String property "active". But in my jsf view page I want to display "Yes" or "No" instead of "Y" or "N" What is ...

21. How to convert "String" into "Date type"    forum.hibernate.org

org.hibernate.QueryException: , expected in SELECT [select to_char(to_date('1-8-2005','dd-mm-yyyy'),'dd-Mon-yyyy') as date1, to_char(to_date('1/8/2004','dd-mm-yyyy'),'dd-Mon-yyyy') as date2] at org.hibernate.hql.classic.SelectParser.token(SelectParser.java:175) at org.hibernate.hql.classic.ClauseParser.token(ClauseParser.java:86) at org.hibernate.hql.classic.ClauseParser.end(ClauseParser.java:113) at org.hibernate.hql.classic.PreprocessingParser.end(PreprocessingParser.java:122) at org.hibernate.hql.classic.ParserHelper.parse(ParserHelper.java:29) at org.hibernate.hql.classic.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:191) at org.hibernate.hql.classic.QueryTranslatorImpl.compile(QueryTranslatorImpl.java:167) at org.hibernate.engine.query.HQLQueryPlan.(HQLQueryPlan.java:75) at org.hibernate.engine.query.HQLQueryPlan.(HQLQueryPlan.java:54) at org.hibernate.engine.query.QueryPlanCache.getHQLQueryPlan(QueryPlanCache.java:71) at org.hibernate.impl.AbstractSessionImpl.getHQLQueryPlan(AbstractSessionImpl.java:133) at org.hibernate.impl.AbstractSessionImpl.createQuery(AbstractSessionImpl.java:112) at org.hibernate.impl.SessionImpl.createQuery(SessionImpl.java:1583) at _jsp._clzone._reports._erp._common._locprodidshiber__jsp._jspService(/clzone/reports/erp/common/LocProdIdsHiber.jsp:96) at com.caucho.jsp.JavaPage.service(JavaPage.java:75) at com.caucho.jsp.Page.pageservice(Page.java:571) at com.caucho.server.dispatch.PageFilterChain.doFilter(PageFilterChain.java:155) at com.caucho.server.cache.CacheFilterChain.doFilter(CacheFilterChain.java:177) at com.caucho.server.webapp.WebAppFilterChain.doFilter(WebAppFilterChain.java:177) at com.caucho.server.dispatch.ServletInvocation.service(ServletInvocation.java:221) at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:263) at com.caucho.server.port.TcpConnection.run(TcpConnection.java:331) at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:464) at com.caucho.util.ThreadPool.run(ThreadPool.java:408) at ...

22. How can I convert a column datatype during a join?    forum.hibernate.org

I am trying to map a legacy database schema. In one table there is a primary key of type numeric and another table that references that primary key as a varchar. ( I can not change the schema) I want to use hibernate annotations to automatically perform the joining of those two tables. I was able to use @SQLInsert to write ...

23. How to convert byte[] to Blob in Java(Hibernate)    forum.hibernate.org

Similarly, you can do it with a JPA annotation. Here's some Hibernate3 code: Code: @Entity @Table(name = "BlobClobBoBob", schema = "examscam") public class BlobClobber { Long id; String beans; char[] ming; Character[] witness; java.sql.Clob sqlClob; java.sql.Blob sqlBlob; byte[] me; @Id @GeneratedValue ...

24. convert float to date type    forum.hibernate.org

We have a SQL server DB, there is a field in a table that store the date as the float type, but we want to pull the data as the Date type. How can we do that? I tried cast, convert functions, which work in SQL, but not work in HQL. I also try to define the field as java.util/sql.Date, hoping ...

25. Unable to convert string "date" to class "jav    forum.hibernate.org

26. Convert the Strings in Java?    forum.hibernate.org

27. Convert from String to Integer in SQL    forum.hibernate.org

I would like to order by a String, which in some cases I know contains an integer. Like this select * from vo_meta_data where md_key="relevance" order by CONVERT(md_value, SIGNED) desc; here md_value is stored as a string, but in this perticular case I know it is an integer. The problem is that if I have values "100", and "8" they are ...