Problem updating BLOB with Hibernate?

Posted by JohnSmith on Stack Overflow See other posts from Stack Overflow or by JohnSmith
Published on 2010-03-30T10:01:36Z Indexed on 2010/03/30 10:43 UTC
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hi, i am having problem updating a blob with hibernate. (i am using Hiberante 3.3.1-GA)

my model have these getters/setters for hibernate, i.e. internally i deal with byte[] so any getter/setter convert the byte[] to blog.

I can create an initial object without problem, but if I try to change the content of the blob, the database column is not updated. I do not get any error message, everything looks fine, except that the database is not updated.

/** do not use, for hibernate only */
public Blob getLogoBinaryBlob() {
    if(logoBinary == null){
        return null;
    }
    return Hibernate.createBlob(logoBinary);
}

/** do not use, for hibernate only */
public void setLogoBinaryBlob(Blob logoBinaryBlob) {

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    try {
        logoBinary = toByteArrayImpl(logoBinaryBlob, baos);
    } catch (Exception e) {
    }
  }

my hibernate mapping for the blob looks like

<property name="logoBinaryBlob" column="LOGO_BINARY" type="blob" />

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