| /* |
| * 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.cassandra; |
| |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.db.*; |
| import org.apache.cassandra.db.rows.*; |
| import org.apache.cassandra.db.partitions.*; |
| |
| |
| /** |
| * Convenience object to create updates to a single partition. |
| * |
| * This is not unlike RowUpdateBuilder except that it allows to create update to multiple rows more easily. |
| * It is also aimed at unit tests so favor convenience over efficiency. |
| */ |
| public class UpdateBuilder |
| { |
| private final PartitionUpdate.SimpleBuilder updateBuilder; |
| private Row.SimpleBuilder currentRow; |
| |
| private UpdateBuilder(PartitionUpdate.SimpleBuilder updateBuilder) |
| { |
| this.updateBuilder = updateBuilder; |
| } |
| |
| public static UpdateBuilder create(TableMetadata metadata, Object... partitionKey) |
| { |
| return new UpdateBuilder(PartitionUpdate.simpleBuilder(metadata, partitionKey)); |
| } |
| |
| public UpdateBuilder withTimestamp(long timestamp) |
| { |
| updateBuilder.timestamp(timestamp); |
| if (currentRow != null) |
| currentRow.timestamp(timestamp); |
| return this; |
| } |
| |
| public UpdateBuilder newRow(Object... clustering) |
| { |
| currentRow = updateBuilder.row(clustering); |
| return this; |
| } |
| |
| public UpdateBuilder add(String column, Object value) |
| { |
| assert currentRow != null; |
| currentRow.add(column, value); |
| return this; |
| } |
| |
| public PartitionUpdate build() |
| { |
| return updateBuilder.build(); |
| } |
| |
| public IMutation makeMutation() |
| { |
| Mutation m = updateBuilder.buildAsMutation(); |
| return updateBuilder.metadata().isCounter() |
| ? new CounterMutation(m, ConsistencyLevel.ONE) |
| : m; |
| } |
| |
| public void apply() |
| { |
| makeMutation().apply(); |
| } |
| |
| public void applyUnsafe() |
| { |
| assert !updateBuilder.metadata().isCounter() : "Counters have currently no applyUnsafe() option"; |
| updateBuilder.buildAsMutation().applyUnsafe(); |
| } |
| } |