/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.metamodel.couchdb;
import org.ektorp.CouchDbInstance;
import org.apache.metamodel.MetaModelException;
import org.apache.metamodel.create.AbstractTableCreationBuilder;
import org.apache.metamodel.schema.ColumnType;
import org.apache.metamodel.schema.MutableColumn;
import org.apache.metamodel.schema.MutableSchema;
import org.apache.metamodel.schema.MutableTable;
import org.apache.metamodel.schema.Schema;
import org.apache.metamodel.schema.Table;
final class CouchDbTableCreationBuilder extends AbstractTableCreationBuilder<CouchDbUpdateCallback> {
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));
}
}
}