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package org.apache.cayenne.dbsync.merge.factory;
import org.apache.cayenne.dba.DbAdapter;
import org.apache.cayenne.dbsync.merge.token.MergerToken;
import org.apache.cayenne.dbsync.merge.token.db.CreateTableToDb;
import org.apache.cayenne.dbsync.merge.token.db.DropRelationshipToDb;
import org.apache.cayenne.dbsync.merge.token.db.SetAllowNullToDb;
import org.apache.cayenne.dbsync.merge.token.db.SetColumnTypeToDb;
import org.apache.cayenne.dbsync.merge.token.db.SetNotNullToDb;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.DbJoin;
import org.apache.cayenne.map.DbRelationship;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
public class OpenBaseMergerTokenFactory extends DefaultMergerTokenFactory {
@Override
public MergerToken createCreateTableToDb(DbEntity entity) {
return new CreateTableToDb(entity) {
@Override
public List<String> createSql(DbAdapter adapter) {
List<String> sqls = new ArrayList<>();
// create table first as OpenBase adapter created primary key in its
// getPkGenerator().createAutoPkStatements
sqls.add(adapter.createTable(getEntity()));
sqls.addAll(adapter.getPkGenerator().createAutoPkStatements(
Collections.singletonList(getEntity())));
return sqls;
}
};
}
@Override
public MergerToken createDropRelationshipToDb(
final DbEntity entity,
final DbRelationship rel) {
return new DropRelationshipToDb(entity, rel) {
@Override
public List<String> createSql(DbAdapter adapter) {
// FK_NAME form jdbc metadata seem to be wrong. It contain a column name
// and not the 'relationshipName'
// TODO: tell openbase developer mail list
DbEntity source = getEntity();
DbEntity dest = rel.getTargetEntity();
// only use the first. See adapter
// TODO: can we be sure this is the first and same as used by the adapter?
DbJoin join = rel.getJoins().get(0);
// see comment in adapter for why source and dest is switched around..
return Collections.singletonList("delete from _SYS_RELATIONSHIP where "
+ " source_table = '" + dest.getFullyQualifiedName() + "'"
+ " and source_column = '" + join.getTargetName() + "'"
+ " and dest_table = '" + source.getFullyQualifiedName() + "'"
+ " and dest_column = '" + join.getSourceName() + "'");
}
};
}
@Override
public MergerToken createSetColumnTypeToDb(
final DbEntity entity,
final DbAttribute columnOriginal,
final DbAttribute columnNew) {
return new SetColumnTypeToDb(entity, columnOriginal, columnNew) {
@Override
public List<String> createSql(DbAdapter adapter) {
List<String> sqls = new ArrayList<>();
if (columnOriginal.getMaxLength() != columnNew.getMaxLength()) {
sqls.add("ALTER TABLE "
+ entity.getFullyQualifiedName()
+ " COLUMN "
+ columnNew.getName()
+ " SET LENGTH "
+ columnNew.getMaxLength());
}
return sqls;
}
};
}
@Override
public MergerToken createSetNotNullToDb(DbEntity entity, DbAttribute column) {
return new SetNotNullToDb(entity, column) {
@Override
public List<String> createSql(DbAdapter adapter) {
return Collections.singletonList("ALTER TABLE " + getEntity().getFullyQualifiedName()
+ " COLUMN " + getColumn().getName() + " SET NOT NULL");
}
};
}
@Override
public MergerToken createSetAllowNullToDb(DbEntity entity, DbAttribute column) {
return new SetAllowNullToDb(entity, column) {
@Override
public List<String> createSql(DbAdapter adapter) {
return Collections.singletonList("ALTER TABLE " + getEntity().getFullyQualifiedName()
+ " COLUMN " + getColumn().getName() + " SET NULL");
}
};
}
}