type=page
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title=Controlling Concurrent Access to Entity Data with Locking
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Controlling Concurrent Access to Entity Data with Locking
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[[GKJJF]]

[[controlling-concurrent-access-to-entity-data-with-locking]]
45 Controlling Concurrent Access to Entity Data with Locking
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This chapter details how to handle concurrent access to entity data, and
the locking strategies available to Java Persistence API application
developers.

The following topics are addressed here:

* link:persistence-locking001.html#GKJHZ[Overview of Entity Locking and
Concurrency]
* link:persistence-locking002.html#GKJIU[Lock Modes]
