binary « Data Type « JPA Q&A





1. Open JPA - column definition binary    stackoverflow.com

I'm trying to set the type of a column in OpenJPA as binary(5) so I'm using the following declaration:

@Column(name="MY_FIELD", columnDefinition="BINARY(5)")
public byte[] getMyField() {
    return myField;
}
However, the column is ...

2. Large binary file in jpa    stackoverflow.com

I have ejb + JPA app on GF3 server and remote swing client. I want upload large files from client to server's database over stateless session bean. how to upload large binary ...

3. JPA - Update binary data    stackoverflow.com

I am new to JPA and hibernate. I am using HSQLDB 2.0 and hibernate-JPA to insert image into BINARY column. I have annotated as follows

@Lob
private byte[] profileImage;
I can insert the image into ...

4. How to store uuid in binary form using hibernate JPA 2    stackoverflow.com

I have a question about string uuid in database in binary form through hibernate persistence (JPA2). I'm using now this code:

private UUID id;

@Id
@Type(type="uuid-char")
@GeneratedValue(generator = "system-uuid")
@GenericGenerator(name = "system-uuid", strategy = "uuid")
@Column(length = ...

6. Retrieving binary data via Hibernate    coderanch.com

7. Retrieving binary data    forum.hibernate.org

9. No corresponding Hibernate type for MySQL binary?    forum.hibernate.org

glenpeterson wrote: Code: Why do you want to use binary instead of varbinary or blob? It seems to me that varbinary does all the good things that binary does without changing (padding) the data value that you store in it. At the end of http://dev.mysql.com/doc/refman/5.1/en/binary-varbinary.html they say, "If the value retrieved ...





10. How to serializae an array as binary ?    forum.hibernate.org

11. working with binary data    forum.hibernate.org

Hi all ! I need to rewrite some code from handcoded jdbc, to Hibernate, and i have a problem with binary data. I have a class: Resource - which represent some binary data for for other classes, and this class have a methods for accessing actual binary data through InputStream: InputStream getData() setData(InputStream) , so i want to map it with ...

12. Binary data    forum.hibernate.org

I let hibernate generate automatically my schema, so if I don't put length, or put a short length, hibernate generates a RAW column with a fixed length. I just put this length to force hibernate to generate a LONG RAW column. In Oracle a LONG RAW column is able to store binary data of variable length up to 2Gb. There is ...

13. Read binary object into database via hibernate    forum.hibernate.org

Hi, what is the best way to read a binary object into a postgresql table via hibernate? I have defined the setter in my class to handle the object as: public byte[] getArtistPhoto1() { return ArtistPhoto1; } public void setArtistPhoto1(byte[] newArtistPhoto1) { this.ArtistPhoto1 = newArtistPhoto1; } The java code I had deleloped so far is: Artist newArt = new Artist(); File ...

14. Size of Binary    forum.hibernate.org

15. Binary retrieval - *Best practice* recommendations...    forum.hibernate.org

Hi, I have a table in postgreSQL, ver. 7.4.1, which serves up image data(JPEG) to users browsers. In various posts I have read there has been a favour towards storing image data as bytea (byte[]) instead of storing the filesystem location of the image, or whatever binary data is, in the database. I have decided to store my images on the ...

16. Problem inserting binary into SQLServer    forum.hibernate.org

Hi, I'm having problems to insert binary type using MS sqlServer2000 an hibernate. Previously during development life cicle I used a String type to store password, but now I have implemented a cripto rotine using Rijndael algoritm to store the password and I'm getting an error. I'm using byte[] as the java type for the POJO and on hibernate xml mapping ...





19. Sending large binary data across network    forum.hibernate.org

Dear All, I am developing an application with Hibernate as Data Access backend and Swing GUI as client side. Hibernate and Data Access layer is centralized. Swing GUI is distributed at client side. My application should send large binary data (media file such as ..mp3, graphic, etc). I put these data as byte[] in my Java object and mapp to db ...

20. Are binary size fixed?    forum.hibernate.org

Hibernate version:2.14 Mapping documents: We are using BLOB for signature image store in Oracle 9i database. The type for database column is BLOB. We are using binary for mapping and byte[] for Java datatype. The thing is that we found if the image size is bigger than 4k, then the SQLException will be thrown. Otherwise everything ...

21. Are binary size fixed?    forum.hibernate.org

Hibernate version:2.14 Mapping documents: We are using BLOB for signature image store in Oracle 9i database. The type for database column is BLOB. We are using binary for mapping and byte[] for Java datatype. The thing is that we found if the image size is bigger than 4k, then the SQLException will be thrown. Otherwise everything ...

22. insert a binary stream to a blob in oracle 9i    forum.hibernate.org

Hi, I am trying to insert an uploaded file (media) into a blob column in oracle and I think I hit the 4k limit. 1. I have defined media as byte[] in my POJO. I don't want to define it as java.sql.Blob (ref to articlehttp://forum.hibernate.org/viewt ... racle+blob ) 'cos my user may be using some other DB instead of oracle. 2. ...

23. Hibernate and binary data    forum.hibernate.org

Hello, I'm trying to store images into a PostgreSQL(v7.4) database. I could get it to work using a byte-array, but this approach keeps the whole image in memory and trying to insert a large image (>500k) causes an out-of-memory exception. Is there a way to stream the data directly into the database with hibernate, or do i need to do this ...

24. Postgresql binary type & hibernate    forum.hibernate.org

Newbie Joined: Wed Oct 19, 2005 7:29 am Posts: 5 HI, I am getting the following exception while loading the data: (Full stack trace at the end) net.sf.hibernate.type.SerializationException: could not deserialize at net.sf.hibernate.util.SerializationHelper.deserialize(Ljava.io.InputStream;)Ljava.lang.Object;(SerializationHelper.java:211) at net.sf.hibernate.util.SerializationHelper.deserialize([B)Ljava.lang.Object;(SerializationHelper.java:234) at net.sf.hibernate.type.SerializableType.fromBytes([B)Ljava.lang.Object;(SerializableType.java:73) ................... Caused by: java.io.StreamCorruptedException: invalid stream header at java.io.ObjectInputStream.readStreamHeader()V(Unknown Source) at java.io.ObjectInputStream.(Ljava.io.InputStream;)V(Unknown Source) at net.sf.hibernate.util.SerializationHelper$CustomObjectInputStream.(Ljava.io.InputStream;)V(SerializationHelper.java:246) at net.sf.hibernate.util.SerializationHelper.deserialize(Ljava.io.InputStream;)Ljava.lang.Object;(SerializationHelper.java:203) Trivia: Database: PostgreSQL 7.4 Relevant Mapping:

25. Postgres binary type \0 not allowed IllegalArgumentException    forum.hibernate.org

iam using hibernate3.0.5 version our product using all kinds of database management system for management tool of product problem is using binary field if i use oracle or sql server then ok. but postres always throw IllegarArgumentException (\0 not allowed) these are hbm and model class and controller class implementation performance is not critical. just operate then no problem

26. Exception : Expected NUMBER got BINARY    forum.hibernate.org

Why am i getting this exception : I had it earlier also in a small example, but somehow got rid of it, by using 'assigned' mechanism for PK generation. But right now i am using 'native' mechanism for PK generation. Does this error occur because a Java null value is being put in a property for hibernate which expects a particular ...

27. A Though situation on binary data and blobs    forum.hibernate.org

Hello, I have a question about how to implement a use case... I have an entity which has a collection of non persistent items. I keep the collection in a private field marked as @Transient . And I implement prepersist/preUpdate and onload call backs within the entity class. The problem is with the dirty flags. As soon as a make a ...

30. UserType vs binary for storing binary data    forum.hibernate.org

Hi! I have recently tried to replace a mapping written by a former employee. The old version used a UserType for the binary property. The former employee claimed that this was a must be for storing binary data, according to what he had read in Hibernate documentation. After reading the Hibernate 3 core reference documentation, I tried to simply replace the ...

31. saving binary to HSQLDB....    forum.hibernate.org

here is what I modified in the BinaryBlobType class: Code: public Object nullSafeGet(ResultSet rs, String[] names, Object owner) throws HibernateException, SQLException { InputStream input = rs.getBinaryStream(names[0]); if (input == null) return null; byte [] blob = null; ...

32. binary images and mysql    forum.hibernate.org

The Hibernate part to me is what matters. I would like to know how a blob should be defined and if there are certain settings such as size limitations, etc. that may come into play. As far as mysql, it should just take the data. Seems that is out of play, if the hbm definition is correct and the pojo to ...

33. Oracle - BINARY expected got NUMBER    forum.hibernate.org

Newbie Joined: Tue Apr 05, 2005 3:51 am Posts: 7 Location: Switzerland I tried to move my database from MySQL to Oracle. I changed the appropriate config properties (including hibernate.dialect=org.hibernate.dialect.OracleDialect or Oracle9Dialect). But now I get a "BINARY expected got NUMBER" on some queries. I dont really understand where it comes from. I dont have any "BINARY" field in my mappings ...

34. To BINARY_DOUBLE or NUMBER, that is the question    forum.hibernate.org

Oracle 10g has two new datatypes: BINARY_FLOAT and BINARY_DOUBLE that correspond to the IEEE floating-point types found in Java (and most languages). Obviously, a big advantage is performance -- computers can crunch IEEE floating point numbers faster than binary coded decimals. But another key advantage in my mind is that the datatypes match that of Java, so there will be nothing ...

35. storing a binary object in db    forum.hibernate.org

Hey guys, I am using jdbc3 sybase driver w/ Sybase 12.5 and hibernate-3.2 I want to store and retrieve a blob, but am getting the following error. I am storing it fine, but then cant' retrieve it. I've looked around but can't to seem find examples of which data type i should use to store the binary image. Any recommendation would ...

36. binary data storage    forum.hibernate.org

Hey guys, Using Hibernate, I am trying to store a pdf into sybase. Originally I tried storing it as a blob & clob, but the getblob & getclob methods are not supported. Now, i am trying to store the pdf into a 'text' type field; however, I am not sure how to make this conversion from binary pdf to 'text' type ...

37. Unknown type '246 in column 0 of 1 in binary-encoded result    forum.hibernate.org

Full stack trace of any exception that occurs: Exception in thread "main" org.hibernate.exception.GenericJDBCException: could not execute query at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:103) at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:91) at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43) at org.hibernate.loader.Loader.doList(Loader.java:2147) at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2028) at org.hibernate.loader.Loader.list(Loader.java:2023) at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:393) at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338) at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172) at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121) at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79) at org.hibernate.impl.AbstractQueryImpl.uniqueResult(AbstractQueryImpl.java:780) at iron.bd.BD.prueba(BD.java:711) at iron.bd.BD.main(BD.java:719) Caused by: java.sql.SQLException: Unknown type '246 in column 0 of 1 in binary-encoded result set. at ...

38. streaming binary data - what port/protocol does hb/java use?    forum.hibernate.org

I use the system setting hibernate.jdbc.use_streams_for_binary=true to stream blob/clob data from a remote oracle db to my local dev web app on my laptop. This works great from many different locations where I do dev work, except at corporate hq. A new firewall has been put up there, and now my web app stalls when querying my user prefs blob from ...