# OSGeo::FDO::Commands::Locking::IReleaseLock Interface Reference
[OSGeo::FDO::Commands::Locking]

Inheritance diagram for OSGeo::FDO::Commands::Locking::IReleaseLock:

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## Detailed Description

The IReleaseLock interface defines the ReleaseLock command, which releases locks from feature instances of a given class that match the specified criteria. Input to the release lock command includes the name of the class and filter criteria by which to identify the instances to be unlocked. The filter may be specified either as text or as an expression tree (most likely produced by a query builder). The ability to successfully execute the command might be restricted by the datastore security if the lock doesn’t belong to the user executing the command.

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