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Date: Tue, 3 Jul 2007 17:57:04 -0700 (PDT)
From: "Dain Sundstrom (JIRA)" <jira@apache.org>
To: commons-dev@jakarta.apache.org
Subject: [jira] Created: (DBCP-228) [dbcp] Managed Connection support
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[dbcp] Managed Connection support
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                 Key: DBCP-228
                 URL: https://issues.apache.org/jira/browse/DBCP-228
             Project: Commons Dbcp
          Issue Type: New Feature
            Reporter: Dain Sundstrom
         Attachments: ManagedConnection.patch

This patch adds support for pooling of ManagedConnections.  A managed connection is responsible for managing a database connection in a transactional environment (typically called "Container Managed").  A managed connection opperates like any other connection when no gloabal transaction (a.k.a. XA transaction or JTA Transaction) is in progress.  When a global transaction is active a single physical connection to the database is used by all ManagedConnections accessed in the scope of the transaction.  Connection sharing means that all data access during a transaction has a consistent view of the database.  When the global transaction is committed or rolled back the enlisted connections are committed or rolled back.  

This patch supports full XADataSources and non-XA data sources using local transaction semantics.  non-XA data sources commit and rollback as part of the transaction but are not recoverable in the case of an error because they do not implement the two-phase commit protocol.

The patch includes test cases and javadoc comments.

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