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Oracle Fusion Middleware Java API Reference for Oracle WebLogic Server 12c (12.2.1) Part Number E55141-01 P4 Change 1723563 on 2015/10/09 |
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public interface ConnectionHarvestingCallback
The callback interface for the connection harvesting support. Applications using the connection harvesting feature can optionally provide an implementation of this interface.
The callback object is registered with each harvestable pooled connection or using any of its logical connection proxies, allowing applications to perform customized cleanup tasks when this connection is harvested by the pool.
The cleanup(...)
method is invoked when a borrowed connection is harvested by the Universal Connection Pool. Applications using java.sql.Connection
, for instance, can invoke the close()
and rollback()
methods on this Connection within a cleanup()
implementation.
It is an error to register more than one connection harvesting callback on the same connection. Any such attempt results in a UniversalConnectionPoolException
at the pool layer or an exception specific to the type of a Universal Connection Pool Adapter (for example, JDBC, JCA, and so forth).
UniversalConnectionPool
, UniversalPooledConnection
, PoolDataSource
Method Summary | |
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abstract boolean |
cleanup() Cleans up a connection being harvested before the connetion is returned to the connection pool. |
Method Detail |
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boolean cleanup()
true
; otherwise, return false
.
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Copyright 1996, 2015, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Oracle Fusion Middleware Java API Reference for Oracle WebLogic Server 12c (12.2.1) Part Number E55141-01 P4 Change 1723563 on 2015/10/09 |
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