Package com.creativityfactory.swiftserver.persistence

Class DefaultDataSource

java.lang.Object

com.creativityfactory.swiftserver.persistence.DefaultDataSource

public class DefaultDataSource
extends Object

The DefaultDataSource class provides an API for persistence list objects of a class in JSON format, and also for reading and writing data. It is a singleton class, and an instance can be obtained using the getInstance() method.

Method Summary

Modifier and Type	Method	Description
static DefaultDataSource	getInstance()	Returns an instance of the DefaultDataSource class.
List<Object>	loadDB(Class<?> model)	Loads the data from the JSON file corresponding to the specified model class.
boolean	saveDB(List<Object> list, Class<?> model)	Saves the specified list of objects to the JSON file corresponding to the specified model class.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

getInstance

public static DefaultDataSource getInstance()

Returns an instance of the DefaultDataSource class.

Returns:

an instance of the DefaultDataSource class

loadDB

public List<Object> loadDB(Class<?> model)
                    throws IOException

Loads the data from the JSON file corresponding to the specified model class.

Parameters:

model - the model class for which data is to be loaded

Returns:

a list of objects of the specified model class, loaded from the corresponding JSON file

Throws:

IOException - if an I/O error occurs while reading the JSON file

saveDB

public boolean saveDB(List<Object> list,
 Class<?> model)

Saves the specified list of objects to the JSON file corresponding to the specified model class.

Parameters:

list - the list of objects to be saved

model - the model class for which data is to be saved

Returns:

true if the data was successfully saved to the corresponding JSON file, false otherwise