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From "Scott Anderson" <>
Subject RE: Upcast problems w/SQLServerMergerFactory and AutoAdapter
Date Thu, 25 Sep 2008 17:00:33 GMT
That method is defined in the DbAdapter interface; you don't need to cast it. See MySQLMergerFactory
(post CAY-1108 patch) for an example.

-----Original Message-----
From: [] On Behalf Of Øyvind Harboe
Sent: Thursday, September 25, 2008 3:55 AM
Subject: Upcast problems w/SQLServerMergerFactory and AutoAdapter

1. I'm getting the exception below in my code:


2. This happens when I execute the code below:


3. If #2 is legal, then I don't understand how an upcast to DbAdapter
to SQLServerAdapter
can work for AutoAdapter

    public MergerToken createSetNotNullToDb(DbEntity entity, final
DbAttribute column) {

        return new SetNotNullToDb(entity, column) {

            public List<String> createSql(DbAdapter adapter) {
                StringBuffer sqlBuffer = new StringBuffer();

                sqlBuffer.append("ALTER TABLE ");
                sqlBuffer.append(" ALTER COLUMN ");

                SQLServerAdapter sqladapter = (SQLServerAdapter) adapter;
                sqladapter.createTableAppendColumn(sqlBuffer, column);

                return Collections.singletonList(sqlBuffer.toString());


Øyvind Harboe
ARM7 ARM9 XScale Cortex
JTAG debugger and flash programmer

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