Atomikos's Documentation webThe Documentation webhttps://www.atomikos.com/DocumentationCopyright 2026 Atomikos BVBA
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LogCloudhttps://www.atomikos.com/Documentation/LogCloud2026-08-08T16:32:53+02:00What is it? Available as of Main.ExtremeTransactions 5.0, the LogCloud is our answer to the needs of transaction processing projects that need to move into the cl... (last changed by GuyPardon)GuyPardonConfiguringYourSubscriptionhttps://www.atomikos.com/Documentation/ConfiguringYourSubscription2026-07-29T14:07:09+02:00Why Subscription Files? In the past we have had installations that were moved to a different team, with contacts who were unknown to us. When they applied for sup... (last changed by GuyPardon)GuyPardonHowToDowngradehttps://www.atomikos.com/Documentation/HowToDowngrade2026-03-24T13:14:55+01:00CAUTION: by downgrading, you loose: 1. 100 bug fixes available in Main.ExtremeTransactions (downgrading is like injecting 100 bugs into your project) 1. A... (last changed by GuyPardon)GuyPardonConcurrencyModelhttps://www.atomikos.com/Documentation/ConcurrencyModel2025-05-06T17:33:58+02:00This page explains the most important things you need to understand about concurrent threads and their activities that could interfere (or not). Important Thread... (last changed by GuyPardon)GuyPardonSpringBootIntegrationhttps://www.atomikos.com/Documentation/SpringBootIntegration2025-04-03T14:34:40+02:00TransactionsEssentials 6.0 and higher In our 6.0 we support Spring Boot 2, 3 and 3.4. Spring Boot 2 com.atomikos transactions spring boot starter... (last changed by GuyPardon)GuyPardonConfiguringMQSerieshttps://www.atomikos.com/Documentation/ConfiguringMQSeries2024-11-15T15:29:42+01:00You can use Atomikos and IBM MQ for JMS/XA messaging. To do so, please follow the configuration instructions outlined below. NOTE: these instructions have been te... (last changed by GuyPardon)GuyPardonThreadPoolinghttps://www.atomikos.com/Documentation/ThreadPooling2024-03-22T10:02:48+01:00Thread pooling is in package com.atomikos.icatch.imp.thread. The diagram below shows the design behind the thread pooling mechanism. (last changed by GuyPardon)GuyPardonSessionHandleStatehttps://www.atomikos.com/Documentation/SessionHandleState2024-03-22T10:01:19+01:00The SessionHandleState class (package com.atomikos.datasource.xa.session) tracks the XA enlistment history of a JDBC or JMS connection/session handle. This class ... (last changed by GuyPardon)GuyPardonJmsConnectionClasseshttps://www.atomikos.com/Documentation/JmsConnectionClasses2024-03-22T10:01:04+01:00Class Diagram Overview The JMS connection class design is shown below. AtomikosJmsPooledConnection States The relevant states of the JMS connection are shown bel... (last changed by GuyPardon)GuyPardonBorrowConnectionFromPoolhttps://www.atomikos.com/Documentation/BorrowConnectionFromPool2024-03-22T10:00:46+01:00The figure below shows the logic to borrow a connection from the pool. (last changed by GuyPardon)GuyPardonCheckConnectionsInPoolhttps://www.atomikos.com/Documentation/CheckConnectionsInPool2024-03-22T10:00:14+01:00The pool regularly checks the pooled connections as shown below. (last changed by GuyPardon)GuyPardonJdbcConnectionPoolingClasseshttps://www.atomikos.com/Documentation/JdbcConnectionPoolingClasses2024-03-22T09:59:58+01:00The figure below illustrates the connection pooling classes in package com.atomikos.jdbc.internal. (last changed by GuyPardon)GuyPardonJdbcClasseshttps://www.atomikos.com/Documentation/JdbcClasses2024-03-22T09:59:42+01:00The figure below shows the overview of the JDBC classes (in package com.atomikos.jdbc and subpackages). (last changed by GuyPardon)GuyPardonPreventingDeadlockshttps://www.atomikos.com/Documentation/PreventingDeadlocks2024-03-22T09:59:02+01:00Transaction Specific Threads What Causes Deadlock? In Java, deadlocks are most commonly caused by synchronized blocks of code. In particular, deadlock can happen... (last changed by GuyPardon)GuyPardonTransactionsEssentialsArchitecturehttps://www.atomikos.com/Documentation/TransactionsEssentialsArchitecture2024-03-22T09:58:14+01:00Core * ThreadPooling * TransactionLogging * PreventingDeadlocks * ConcurrencyModel JDBC * JdbcClasses * JdbcConnectionPoolingClasses * CheckCo... (last changed by GuyPardon)GuyPardonHowToHandleVulnerableDependencyWarningshttps://www.atomikos.com/Documentation/HowToHandleVulnerableDependencyWarnings2024-03-22T09:23:56+01:00Recent Atomikos releases will do a courtesy scan of your application's classpath to detect known vulnerable dependencies. This is a best effort scan based on the ... (last changed by MichaelDaum)MichaelDaum