org.wali

Interface SerDeFactory<T>

All Known Implementing Classes:

RepositoryRecordSerdeFactory, SingletonSerDeFactory

public interface SerDeFactory<T>

Method Summary

Modifier and Type	Method and Description
SerDe<T>	createSerDe(java.lang.String encodingName) Returns a new SerDe
java.lang.String	getLocation(T record) Returns the external location of the given record; this is used when a record is moved away from WALI or is being re-introduced to WALI.
java.lang.Object	getRecordIdentifier(T record) Returns the unique ID for the given record
UpdateType	getUpdateType(T record) Returns the UpdateType for the given record

Method Detail

createSerDe

SerDe<T> createSerDe(java.lang.String encodingName)

Returns a new SerDe

Parameters:

encodingName - the name of encoding that was used when writing the serialized data, or null if the SerDe is to be used for serialization purposes

Returns:

a SerDe

getRecordIdentifier

java.lang.Object getRecordIdentifier(T record)

Returns the unique ID for the given record

Parameters:

record - to obtain identifier for

Returns:

identifier of record

getUpdateType

UpdateType getUpdateType(T record)

Returns the UpdateType for the given record

Parameters:

record - to retrieve update type for

Returns:

update type

getLocation

java.lang.String getLocation(T record)

Returns the external location of the given record; this is used when a record is moved away from WALI or is being re-introduced to WALI. For example, WALI can be updated with a record of type UpdateType.SWAP_OUT that indicates a Location of file://tmp/external1 and can then be re-introduced to WALI by updating WALI with a record of type UpdateType.CREATE that indicates a Location of file://tmp/external1

Parameters:

record - to get location of

Returns:

location