/*
* Copyright (c) 2011. The Apache Software Foundation
*
* 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.hadoop.hbase.hbql.statement;
import org.apache.hadoop.hbase.client.HBaseAdmin;
import org.apache.hadoop.hbase.hbql.client.HBqlException;
import org.apache.hadoop.hbase.hbql.impl.HConnectionImpl;
import java.io.IOException;
public class DropFamilyAction implements AlterTableAction {
private final String familyName;
public DropFamilyAction(final String familyName) {
this.familyName = familyName;
}
private String getFamilyName() {
return this.familyName;
}
public void execute(final HConnectionImpl conn,
final HBaseAdmin admin,
final String tableName) throws HBqlException {
try {
conn.validateFamilyExistsForTable(this.getFamilyName(), tableName);
admin.deleteColumn(tableName, this.getFamilyName());
}
catch (IOException e) {
throw new HBqlException(e);
}
}
}