| /* |
| * 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.hive.metastore; |
| |
| import org.apache.hadoop.hive.metastore.api.DataOperationType; |
| import org.apache.hadoop.hive.metastore.api.LockComponent; |
| import org.apache.hadoop.hive.metastore.api.LockLevel; |
| import org.apache.hadoop.hive.metastore.api.LockType; |
| |
| /** |
| * A builder for {@link LockComponent}s |
| */ |
| public class LockComponentBuilder { |
| private LockComponent component; |
| private boolean tableNameSet; |
| private boolean partNameSet; |
| |
| public LockComponentBuilder() { |
| component = new LockComponent(); |
| tableNameSet = partNameSet = false; |
| } |
| |
| /** |
| * Set the lock to be exclusive. |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setExclusive() { |
| component.setType(LockType.EXCLUSIVE); |
| return this; |
| } |
| |
| /** |
| * Set the lock to be excl_write. |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setExclWrite() { |
| component.setType(LockType.EXCL_WRITE); |
| return this; |
| } |
| |
| /** |
| * Set the lock to be shared_write. |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setSharedWrite() { |
| component.setType(LockType.SHARED_WRITE); |
| return this; |
| } |
| |
| /** |
| * Set the lock to be shared_read. |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setSharedRead() { |
| component.setType(LockType.SHARED_READ); |
| return this; |
| } |
| |
| /** |
| * Set the database name. |
| * @param dbName database name |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setDbName(String dbName) { |
| component.setDbname(dbName); |
| return this; |
| } |
| |
| public LockComponentBuilder setOperationType(DataOperationType dop) { |
| component.setOperationType(dop); |
| return this; |
| } |
| |
| public LockComponentBuilder setIsTransactional(boolean t) { |
| component.setIsTransactional(t); |
| return this; |
| } |
| /** |
| * Set the table name. |
| * @param tableName table name |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setTableName(String tableName) { |
| component.setTablename(tableName); |
| tableNameSet = true; |
| return this; |
| } |
| |
| /** |
| * Set the partition name. |
| * @param partitionName partition name |
| * @return reference to this builder |
| */ |
| public LockComponentBuilder setPartitionName(String partitionName) { |
| component.setPartitionname(partitionName); |
| partNameSet = true; |
| return this; |
| } |
| public LockComponentBuilder setIsDynamicPartitionWrite(boolean t) { |
| component.setIsDynamicPartitionWrite(t); |
| return this; |
| } |
| |
| /** |
| * Get the constructed lock component. |
| * @return lock component. |
| */ |
| public LockComponent build() { |
| LockLevel level = LockLevel.DB; |
| if (tableNameSet) level = LockLevel.TABLE; |
| if (partNameSet) level = LockLevel.PARTITION; |
| component.setLevel(level); |
| return component; |
| } |
| |
| public LockComponent setLock(LockType type) { |
| component.setType(type); |
| return component; |
| } |
| } |