ostore.read (Pond Documentation)

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Package ostore.read

Interface Summary
*VersionPredicate*	Encodes a restriction on versions of a `Replica`.

Class Summary

BytesReadReq Events sent from the ReplicaStage to the ReadStage requesting the latter to read a portion of a DataObject and return the bytes read.

BytesReadResp Events sent from the ReadStage to the ReplicaStage responding to BytesReadReq events.

DatePredicate A VersionPredicate that requires version whose creation date lies in a specified range.

FreshPredicate A VersionPredicate that requires a version whose expiration date has not yet been reached.

HandleStoreReadReq Events sent from the ReplicaStage to the ReadStage requesting the latter to read a portion of a DataObject and return the bytes read.

HandleStoreReadResp Events sent from the ReadStage to the ReplicaStage responding to SliceReadReq events.

HeadPredicate A VersionPredicate that requires a version that was still the most recent version at some point in a specified range.

NumberPredicate A VersionPredicate that requires version whose sequence number lies in a specified range.

ReadReq A superclass for events sent from the ReplicaStage to the ReadStage requesting the latter to read a portion of a DataObject.

ReadResp A superclass for events sent from the ReadStage to the ReplicaStage responding to ReadReq events.

ReadStage The ReadStage performs the read satisfying a ReadReq event.

ReplicaBytesReadReq Events sent from the ClientStage to the ReplicaStage requesting the latter to read a portion of a Replica and return the bytes read.

ReplicaBytesReadResp Events sent from the ReplicaStage to the ClientStage responding to ReplicaBytesReadReq events.

ReplicaMetadataReadReq Events sent from the ClientStage to the ReplicaStage requesting the latter to return the Metadata object for a Replica.

ReplicaMetadataReadResp Events sent from the ReplicaStage to the ClientStage responding to ReplicaMetadataReadReq events.

ReplicaReadReq Events sent from the ClientStage to the ReplicaStage requesting the latter to read a portion of a Replica.

ReplicaReadResp A superclass for events sent from the ReplicaStage to the ClientStage responding to ReplicaReadReq events.

ReplicaSliceReadReq Events sent from the ClientStage to the ReplicaStage requesting the latter to read a portion of a Replica and return the blocks from the entire slice required to verify the read.

ReplicaSliceReadResp Events sent from the ReplicaStage to the ClientStage responding to ReplicaSliceReadReq events.

ReplicaVersionQueryReq Events sent from the ClientStage to the ReplicaStage requesting the latter to return just a VID for a Replica.

ReplicaVersionQueryResp Events sent from the ReplicaStage to the ClientStage responding to ReplicaVersionQueryReq events.

SliceReadReq Events sent from the ReplicaStage to the ReadStage requesting the latter to read a portion of a DataObject and return the blocks from the entire slice required to verify the read.

SliceReadResp Events sent from the ReadStage to the ReplicaStage responding to SliceReadReq events.

VIDPredicate A VersionPredicate that requires the single version with the specified VID.

Class Summary
BytesReadReq	Events sent from the `ReplicaStage` to the `ReadStage` requesting the latter to read a portion of a `DataObject` and return the `byte`s read.
BytesReadResp	Events sent from the `ReadStage` to the `ReplicaStage` responding to `BytesReadReq` events.
DatePredicate	A `VersionPredicate` that requires version whose creation date lies in a specified range.
FreshPredicate	A `VersionPredicate` that requires a version whose expiration date has not yet been reached.
HandleStoreReadReq	Events sent from the `ReplicaStage` to the `ReadStage` requesting the latter to read a portion of a `DataObject` and return the `byte`s read.
HandleStoreReadResp	Events sent from the `ReadStage` to the `ReplicaStage` responding to `SliceReadReq` events.
HeadPredicate	A `VersionPredicate` that requires a version that was still the most recent version at some point in a specified range.
NumberPredicate	A `VersionPredicate` that requires version whose sequence number lies in a specified range.
ReadReq	A superclass for events sent from the `ReplicaStage` to the `ReadStage` requesting the latter to read a portion of a `DataObject`.
ReadResp	A superclass for events sent from the `ReadStage` to the `ReplicaStage` responding to `ReadReq` events.
ReadStage	The `ReadStage` performs the read satisfying a `ReadReq` event.
ReplicaBytesReadReq	Events sent from the `ClientStage` to the `ReplicaStage` requesting the latter to read a portion of a `Replica` and return the `byte`s read.
ReplicaBytesReadResp	Events sent from the `ReplicaStage` to the `ClientStage` responding to `ReplicaBytesReadReq` events.
ReplicaMetadataReadReq	Events sent from the `ClientStage` to the `ReplicaStage` requesting the latter to return the `Metadata` object for a `Replica`.
ReplicaMetadataReadResp	Events sent from the `ReplicaStage` to the `ClientStage` responding to `ReplicaMetadataReadReq` events.
ReplicaReadReq	Events sent from the `ClientStage` to the `ReplicaStage` requesting the latter to read a portion of a `Replica`.
ReplicaReadResp	A superclass for events sent from the `ReplicaStage` to the `ClientStage` responding to `ReplicaReadReq` events.
ReplicaSliceReadReq	Events sent from the `ClientStage` to the `ReplicaStage` requesting the latter to read a portion of a `Replica` and return the blocks from the entire slice required to verify the read.
ReplicaSliceReadResp	Events sent from the `ReplicaStage` to the `ClientStage` responding to `ReplicaSliceReadReq` events.
ReplicaVersionQueryReq	Events sent from the `ClientStage` to the `ReplicaStage` requesting the latter to return just a `VID` for a `Replica`.
ReplicaVersionQueryResp	Events sent from the `ReplicaStage` to the `ClientStage` responding to `ReplicaVersionQueryReq` events.
SliceReadReq	Events sent from the `ReplicaStage` to the `ReadStage` requesting the latter to read a portion of a `DataObject` and return the blocks from the entire slice required to verify the read.
SliceReadResp	Events sent from the `ReadStage` to the `ReplicaStage` responding to `SliceReadReq` events.
VIDPredicate	A `VersionPredicate` that requires the single version with the specified `VID`.