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From "Kristian Waagan (JIRA)" <j...@apache.org>
Subject [jira] Created: (DERBY-3898) Blob.setBytes differs between embedded and client driver when the specified length is invalid
Date Thu, 02 Oct 2008 16:33:44 GMT
Blob.setBytes differs between embedded and client driver when the specified length is invalid
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                 Key: DERBY-3898
                 URL: https://issues.apache.org/jira/browse/DERBY-3898
             Project: Derby
          Issue Type: Bug
          Components: JDBC
    Affects Versions: 10.4.2.0, 10.3.3.0, 10.5.0.0
            Reporter: Kristian Waagan
            Priority: Minor


Blob.setBytes behaves differently with the embedded driver and the client driver.
Assume a 1 byte array and a specified length of 2: Blob.setBytes(1, new byte[] {0x69}, 0,
2)
Embedded: IndexOutOfBoundsException (from java.io.RandomAccessFile.writeBytes or System.arraycopy)
Client: succeeds, returns insertion count 1

The behavior should be made consistent, but what is the correct behavior?

>From the Blob.setBytes JavaDoc:
"Writes all or part of the given byte array to the BLOB value that this Blob object represents
and returns the number of bytes written. Writing starts at position pos in the BLOB  value;
len bytes from the given byte array are written. The array of bytes will overwrite the existing
bytes in the Blob object starting at the position pos. If the end of the Blob value is reached
while writing the array of bytes, then the length of the Blob value will be increased to accomodate
the extra bytes."

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