
org.eobjects.metamodel.couchdb.CouchDbTableCreationBuilder Maven / Gradle / Ivy
/**
* eobjects.org MetaModel
* Copyright (C) 2010 eobjects.org
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.eobjects.metamodel.couchdb;
import org.ektorp.CouchDbInstance;
import org.eobjects.metamodel.MetaModelException;
import org.eobjects.metamodel.create.AbstractTableCreationBuilder;
import org.eobjects.metamodel.schema.ColumnType;
import org.eobjects.metamodel.schema.MutableColumn;
import org.eobjects.metamodel.schema.MutableSchema;
import org.eobjects.metamodel.schema.MutableTable;
import org.eobjects.metamodel.schema.Schema;
import org.eobjects.metamodel.schema.Table;
final class CouchDbTableCreationBuilder extends AbstractTableCreationBuilder {
public CouchDbTableCreationBuilder(CouchDbUpdateCallback updateCallback, Schema schema, String name) {
super(updateCallback, schema, name);
}
@Override
public Table execute() throws MetaModelException {
MutableTable table = getTable();
String name = table.getName();
CouchDbInstance instance = getUpdateCallback().getDataContext().getCouchDbInstance();
instance.createDatabase(name);
addMandatoryColumns(table);
MutableSchema schema = (MutableSchema) table.getSchema();
schema.addTable(table);
return table;
}
/**
* Verifies, and adds if nescesary, the two mandatory columns: _id and _rev.
*
* @param table
*/
public static void addMandatoryColumns(MutableTable table) {
// add or correct ID column
{
MutableColumn idColumn = (MutableColumn) table.getColumnByName(CouchDbDataContext.FIELD_ID);
if (idColumn == null) {
idColumn = new MutableColumn(CouchDbDataContext.FIELD_ID, ColumnType.VARCHAR, table, 0, false);
table.addColumn(0, idColumn);
}
idColumn.setPrimaryKey(true);
}
if (table.getColumnByName(CouchDbDataContext.FIELD_REV) == null) {
table.addColumn(1, new MutableColumn(CouchDbDataContext.FIELD_REV, ColumnType.VARCHAR, table, 1, false));
}
}
}
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