org.apache.cassandra.db.migration
Class DropColumnFamily

java.lang.Object
  org.apache.cassandra.db.migration.Migration
      org.apache.cassandra.db.migration.DropColumnFamily

public class DropColumnFamily
extends Migration

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.

Field Summary

Fields inherited from class org.apache.cassandra.db.migration.Migration

clientMode, LAST_MIGRATION_KEY, lastVersion, logger, MIGRATIONS_CF, MIGRATIONS_KEY, NAME_VALIDATOR_REGEX, newVersion, rm, SCHEMA_CF

Constructor Summary

protected	DropColumnFamily() Required no-arg constructor
	DropColumnFamily(java.lang.String tableName, java.lang.String cfName)

Method Summary

void	applyModels() keep in mind that applyLive might happen on another machine
void	beforeApplyModels() override this to perform logic before writing the migration or applying it.
void	subdeflate(org.apache.cassandra.db.migration.avro.Migration mi) Deflate this Migration into an Avro object.
void	subinflate(org.apache.cassandra.db.migration.avro.Migration mi) Inflate this Migration from an Avro object: called after the required no-arg constructor.

Methods inherited from class org.apache.cassandra.db.migration.Migration

acquireLocks, announce, apply, deserialize, getLastMigrationId, getLocalMigrations, getVersion, isLegalName, releaseLocks, serialize, toUTF8Bytes

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DropColumnFamily

protected DropColumnFamily()

Required no-arg constructor

DropColumnFamily

public DropColumnFamily(java.lang.String tableName,
                        java.lang.String cfName)
                 throws ConfigurationException,
                        java.io.IOException

Throws:

ConfigurationException

java.io.IOException

Method Detail

beforeApplyModels

public void beforeApplyModels()

Description copied from class: Migration

override this to perform logic before writing the migration or applying it. defaults to nothing.

Overrides:

beforeApplyModels in class Migration

applyModels

public void applyModels()
                 throws java.io.IOException

Description copied from class: Migration

keep in mind that applyLive might happen on another machine

Throws:

java.io.IOException

subdeflate

public void subdeflate(org.apache.cassandra.db.migration.avro.Migration mi)

Description copied from class: Migration

Deflate this Migration into an Avro object.

Specified by:

subdeflate in class Migration

subinflate

public void subinflate(org.apache.cassandra.db.migration.avro.Migration mi)

Description copied from class: Migration

Inflate this Migration from an Avro object: called after the required no-arg constructor.

Specified by:

subinflate in class Migration