All Downloads are FREE. Search and download functionalities are using the official Maven repository.

net.javacrumbs.shedlock.provider.jdbc.micronaut.MicronautJdbcLockProvider Maven / Gradle / Ivy

There is a newer version: 6.0.2
Show newest version
/**
 * Copyright 2009-2021 the original author or authors.
 *
 * 

Licensed 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 net.javacrumbs.shedlock.provider.jdbc.micronaut; import io.micronaut.transaction.TransactionOperations; import io.micronaut.transaction.jdbc.DataSourceTransactionManager; import java.sql.Connection; import javax.sql.DataSource; import net.javacrumbs.shedlock.support.StorageBasedLockProvider; import net.javacrumbs.shedlock.support.annotation.NonNull; /** * Lock provided by plain JDBC, using the Micronaut Data transaction manager. It * uses a table that contains lock_name and locked_until. * *

    *
  1. Attempts to insert a new lock record. Since lock name is a primary key, * it fails if the record already exists. As an optimization, we keep in-memory * track of created lock records. *
  2. If the insert succeeds (1 inserted row) we have the lock. *
  3. If the insert failed due to duplicate key or we have skipped the * insertion, we will try to update lock record using UPDATE tableName SET * lock_until = :lockUntil WHERE name = :lockName AND lock_until <= :now *
  4. If the update succeeded (1 updated row), we have the lock. If the update * failed (0 updated rows) somebody else holds the lock *
  5. When unlocking, lock_until is set to now. *
*/ public class MicronautJdbcLockProvider extends StorageBasedLockProvider { private static final String DEFAULT_TABLE_NAME = "shedlock"; /** * @deprecated Use {@link #MicronautJdbcLockProvider(TransactionOperations)} * instead as transaction management has be refactored in Micronaut * Data 4.0 and DataSourceTransactionManager is not easy to * construct. */ @Deprecated public MicronautJdbcLockProvider(@NonNull DataSource datasource) { this(new DataSourceTransactionManager(datasource), DEFAULT_TABLE_NAME); } public MicronautJdbcLockProvider(@NonNull TransactionOperations transactionManager) { this(transactionManager, DEFAULT_TABLE_NAME); } public MicronautJdbcLockProvider( @NonNull TransactionOperations transactionManager, @NonNull String tableName) { super(new MicronautJdbcStorageAccessor(transactionManager, tableName)); } }




© 2015 - 2024 Weber Informatics LLC | Privacy Policy