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https://issues.apache.org/cayenne/browse/CAY-1117?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tore Halset closed CAY-1117.
----------------------------
Assignee: Tore Halset (was: Andrus Adamchik)
> Class Cast Exception in SQLServerMergerFactory from AutoAdapter to
> SQLServerAdapter
> -----------------------------------------------------------------------------------
>
> Key: CAY-1117
> URL: https://issues.apache.org/cayenne/browse/CAY-1117
> Project: Cayenne
> Issue Type: Bug
> Components: Cayenne Core Library
> Affects Versions: 2.0 [STABLE]
> Environment: Windows XP, 1.6.0_07 by Sun Microsystems Inc., Microsoft
> SQL Server
> Reporter: Laurentiu Cocanu
> Assignee: Tore Halset
> Fix For: 3.0
>
>
> In
> cayenne/framework/cayenne-jdk1.5-unpublished/src/main/java/org/apache/cayenne/dba/sqlserver/SQLServerMergerFactory.java,
> the following method
> @Override
> public MergerToken createSetNotNullToDb(DbEntity entity, final
> DbAttribute column) {
> return new SetNotNullToDb(entity, column) {
> @Override
> public List<String> createSql(DbAdapter adapter) {
> StringBuffer sqlBuffer = new StringBuffer();
> sqlBuffer.append("ALTER TABLE ");
> sqlBuffer.append(getEntity().getFullyQualifiedName());
> sqlBuffer.append(" ALTER COLUMN ");
> SQLServerAdapter sqladapter = (SQLServerAdapter) adapter;
> sqladapter.createTableAppendColumn(sqlBuffer, column);
> return Collections.singletonList(sqlBuffer.toString());
> }
> };
> }
> the cast SQLServerAdapter sqladapter = (SQLServerAdapter) adapter; will raise
> a Class Cast Exception.
> A possible fix could be eliminating this cast as createTableAppendColumn
> method is defined in DbAdapter interface, so the cast is useless.
> See
> http://www.nabble.com/Upcast-problems-w-SQLServerMergerFactory-and-AutoAdapter-td19664724.html
> (the patch is known but not implemented yet)
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