# OSGeo::FDO::Commands::LongTransaction::ILongTransactionCheckpointReader Interface Reference
[OSGeo::FDO::Commands::LongTransaction]

Inheritance diagram for OSGeo::FDO::Commands::LongTransaction::ILongTransactionCheckpointReader:

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## Detailed Description

The ILongTransactionCheckpointReader interface provides forward only, read-only functionality for enumerating long transaction checkpoints. A reference to an ILongTransactionCheckpointReader is returned from the GetLongTransactionCheckpoints command. The initial position of the ILongTransactionCheckpointReader is prior to the first item. Thus, you must call ReadNext to begin accessing any data.

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