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| Resolution Date: |
07/Oct/05 12:05 PM
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Derby incorrectly throws an Exception when streaming to a BLOB in case the used InputStream actually could provide more data than I want to write to the BLOB field.
PreparedStatement statement = connection.prepareStatement( "insert into FOO(ID,DATA) values(?, ?)" );
statement.setLong( 1, someValue );
statement.setBinaryStream( 2, someInputStream, amountOfData ); // amountOfData < amount of data readable from someInputStream
statement.executeUpdate();
executeUpdate() throws an SQLException with detail message: "Input stream held less data than requested length.: java.io.IOException"
In my case this was first caused by writing an internal buffer (byte[]) to the data base through a ByteArrayInputStream while not limiting the ByteArrayInputStream to the useful data within the buffer but setting amountOfData to the number of useful bytes. So the 2 problems are:
1. the error text is definitly incorrect since I provide more data than neccessary, not less
2. in my opinion this shouldn't throw an exception at all (I checked against 4 other DBMS, all of them worked as intended)
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Description
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Derby incorrectly throws an Exception when streaming to a BLOB in case the used InputStream actually could provide more data than I want to write to the BLOB field.
PreparedStatement statement = connection.prepareStatement( "insert into FOO(ID,DATA) values(?, ?)" );
statement.setLong( 1, someValue );
statement.setBinaryStream( 2, someInputStream, amountOfData ); // amountOfData < amount of data readable from someInputStream
statement.executeUpdate();
executeUpdate() throws an SQLException with detail message: "Input stream held less data than requested length.: java.io.IOException"
In my case this was first caused by writing an internal buffer (byte[]) to the data base through a ByteArrayInputStream while not limiting the ByteArrayInputStream to the useful data within the buffer but setting amountOfData to the number of useful bytes. So the 2 problems are:
1. the error text is definitly incorrect since I provide more data than neccessary, not less
2. in my opinion this shouldn't throw an exception at all (I checked against 4 other DBMS, all of them worked as intended) |
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Bug
Closed
Major
Derby incorrectly throws Exception when streaming to BLOB field
