org.ximtec.igesture.storage
Interface StorageEngine

All Known Subinterfaces:

IStorageManager

All Known Implementing Classes:

Db4oStorageEngine, DefaultFileStorageEngine, DefaultStorageEngine, StorageManager, XMLStorageEngine, ZipStorageEngine

public interface StorageEngine

Interface for StorageEngines implementations realising access functionality for data sources.

Version:

1.0, Dec 2006

Author:

Ueli Kurmann, igesture@uelikurmann.ch, Beat Signer, signer@inf.ethz.ch

Method Summary

void	commit() Commits the Transaction
void	copyTo(File file)
void	dispose() Disposes the engine.
<T extends DataObject> List<T>	load(Class<T> clazz) Loads a collection of data objects of a given type.
<T extends DataObject> T	load(Class<T> clazz, String id) Loads a data object of a specific type.
<T extends DataObject> List<T>	load(Class<T> clazz, String fieldName, Object value) Loads a collection of data objects
void	remove(DataObject ojb) Removes a data object.
void	store(DataObject dataObjects) Stores a data object.
void	update(DataObject obj) Updates a data object.

Method Detail

load

<T extends DataObject> T load(Class<T> clazz,
                              String id)

Loads a data object of a specific type.

load

<T extends DataObject> List<T> load(Class<T> clazz)

Loads a collection of data objects of a given type. In general this method returns all instances of the specific type.

load

<T extends DataObject> List<T> load(Class<T> clazz,
                                    String fieldName,
                                    Object value)

Loads a collection of data objects

store

void store(DataObject dataObjects)

Stores a data object. The engine is responsible to set an unique id to the data object.

update

void update(DataObject obj)

Updates a data object.

remove

void remove(DataObject ojb)

Removes a data object.

commit

void commit()

Commits the Transaction

dispose

void dispose()

Disposes the engine.

copyTo

void copyTo(File file)

Parameters:

file -