I still need to know where to call something like this at run time so
it kicks in for all the tables I use.
I can get an adapter and tell it what PkGenerator to use on a case by
case basis (as the example in my question shows)
But how do I put it in there just once. I don't want to modify
everywhere I get a DataContext.
Is there some init hook?
Roger
Borut Bolčina wrote:
Hello Roger,
study the method bellow which creates tables on two databases based on
info
in datamaps created by modeler.
hope it helps,
Borut
/**
* Creates tables. This method is capable of creating tables on
multiple
* database servers, even mixed vendors.
*/
@SuppressWarnings("unchecked")
private void createTables() {
MySQLAdapter mysqlDbAdapter = new MySQLAdapter();
DbGenerator generator = null;
// see http://issues.apache.org/cayenne/browse/CAY-527
//PropertyUtils.setProperty(mysqlDbAdapter, "pkGenerator", new
MyJdbcPkGenerator());
List<DataMap> maps = (List) dataContext.getEntityResolver
().getDataMaps();
for (DataMap dataMap : maps) {
DataNode dataNode = dataContext.getParentDataDomain
().lookupDataNode(dataMap);
DataSource dataSource = dataNode.getDataSource();
MyJdbcPkGenerator myPkGenerator = null;
if (dataMap.getName().equals("MyFirstDomainMap")) {
mysqlDbAdapter.setSupportsFkConstraints(false);
generator = new DbGenerator(mysqlDbAdapter, dataMap);
generator.setShouldCreatePKSupport(false);
generator.setShouldDropTables(false);
} else if (dataMap.getName().equals("MySecondDomainMap")) {
mysqlDbAdapter.setSupportsFkConstraints(true);
myPkGenerator = new MyJdbcPkGenerator();
myPkGenerator.setDataNode(dataNode);
mysqlDbAdapter.setPkGenerator(myPkGenerator);
generator = new DbGenerator(mysqlDbAdapter, dataMap);
generator.setShouldCreatePKSupport(true);
generator.setShouldCreateFKConstraints(true);
generator.setShouldDropTables(false);
}
try {
generator.runGenerator(dataSource);
} catch (Exception e) {
logger.error("Error running database generator for " +
dataMap.getName(), e);
}
}
}
2006/10/26, Roger Parkinson <[EMAIL PROTECTED]>:
I have extended JdbcPkGenerator to generate a custom primary key and
it
works fine in unit testing.
How do I tell Cayenne to use my class instead of standard
JdbcPkGenerator?
Searching the messages reveals I should do something like:
DbAdapter adapter = dataNode.getAdapter();
PropertyUtils.setProperty(adapter,"pkGenerator",new
MyJdbcPkGenerator());
But I don't know where to actually put this code so that it will use my
generator everywhere.
Thanks
--
------------------------------
Roger Parkinson
+64 21 508 792
--
Roger
Parkinson
+64 21 508 792
|
