Re: Remove ByteWrapper class

[Jacques Le Roux]

Hi,

I created https://issues.apache.org/jira/browse/OFBIZ-12194 for that

Le 07/03/2021 à 18:32, Jacques Le Roux a écrit :

Here is a comment from David in 2007 in the ByteWrapper class

 * @deprecated
 * NOTE DEJ20071022: deprecating this because we want to save the byte[] 
directly instead of inside a serialized
 * object, which makes it hard for other apps to use the data, and causes 
problems if this object is ever updated

Here is another comment where it's used, in GenericEntity.getBytes()

        if (value instanceof byte[]) {
            return (byte[]) value;
        }
        if (value instanceof org.apache.ofbiz.entity.util.ByteWrapper) {
            // NOTE DEJ20071022: the use of ByteWrapper is not recommended and 
is deprecated, only old data should be stored that way

            Debug.logWarning("Found a ByteWrapper object in the database for field [" + this.getEntityName() + "." + name + "]; converting to byte[] and returning, but note that you need to update your database to unwrap these objects for future compatibility", module);

            org.apache.ofbiz.entity.util.ByteWrapper wrapper = 
(org.apache.ofbiz.entity.util.ByteWrapper) value;
            return wrapper.getBytes();
        }

Here is another related comment (in SqlJdbcUtil.deserializeField())

        // NOTE DEJ20071022: the following code is to convert the byte[] back 
into an object; if that fails
        //just return the byte[]; this was for the ByteWrapper thing which is 
now deprecated, so this may
        //be removed in the near future to enhance performance

Where there is also this code commented out

        //alt 1: binaryInput = rs.getBinaryStream(ind);
        //alt 2: Blob blobLocator = rs.getBlob(ind);
        //if (blobLocator != null) {
        //    binaryInput = blobLocator.getBinaryStream();
        //}

deserializeField() is only used (twice) in SqlJdbcUtil.getValue() and here are the 
concerned types (11 & 12):

        fieldTypeMap.put("java.lang.Object", 11);
        fieldTypeMap.put("Object", 11);

        fieldTypeMap.put("java.sql.Blob", 12);
        fieldTypeMap.put("Blob", 12);
        fieldTypeMap.put("byte[]", 12);
        fieldTypeMap.put("java.nio.ByteBuffer", 12);
        fieldTypeMap.put("java.nio.HeapByteBuffer", 12);

And I think we can clean this 2 cases from the ByteWrapper class . So it was 10 
years ago, opinions before I open a Jira ?