org.eclipse.smila.recordstorage
Interface RecordStorage

All Known Implementing Classes:

RecordStorageImpl

public interface RecordStorage

RecordStorage service interface.

Method Summary

boolean	existsRecord(java.lang.String id) Checks if a Record exists in the storage.
Record	loadRecord(java.lang.String id) Load the record from storage.
java.util.Iterator<Record>	loadRecords(java.lang.String source) Loads all records of the given source.
void	removeRecord(java.lang.String id) Removes the record.
void	storeRecord(Record record) Stores the given Record object.

Method Detail

loadRecord

Record loadRecord(java.lang.String id)
                  throws RecordStorageException

Load the record from storage.

Parameters:

id - Id of the record

Returns:

a Record object or null, if no record with the given Id exists

Throws:

RecordStorageException - if any error occurs

storeRecord

void storeRecord(Record record)
                 throws RecordStorageException

Stores the given Record object. An existing Record with the same ID is overwritten by the given record.

Parameters:

record - the Record object

Throws:

RecordStorageException - if any error occurs

removeRecord

void removeRecord(java.lang.String id)
                  throws RecordStorageException

Removes the record.

Parameters:

id - Id of the record

Throws:

RecordStorageException - if any error occurs

existsRecord

boolean existsRecord(java.lang.String id)
                     throws RecordStorageException

Checks if a Record exists in the storage.

Parameters:

id - Id of the record

Returns:

true if a record with the given Id exists, false otherwise

Throws:

RecordStorageException - if any error occurs

loadRecords

java.util.Iterator<Record> loadRecords(java.lang.String source)
                                       throws RecordStorageException

Loads all records of the given source.

Parameters:

source - the name of the data source

Returns:

an Iterator over the Record objects

Throws:

RecordStorageException - if any error occurs