Database Class Reference

Collaboration diagram for Database:

[legend]List of all members.

Public Member Functions
String	getQuestions (String bluetoothAddress, String friendlyName)
void	saveVote (String vote, String bluetoothAddress)
Static Public Member Functions
static Database	getInstance ()
Protected Member Functions
	Database ()
Private Attributes
GUI	g
Static Private Attributes
static Database	instance = null

---

Detailed Description

The Database class provides methods to get questions from, and save votes to, the web-based database.

Author:

Nick Day, "UniVote" Final Year Project, Lancaster University

Definition at line 15 of file Database.java.

---

Constructor & Destructor Documentation

Database.Database (   )  [protected]

Instantiates this class by getting the instance of the GUI class. See also: GUI.getInstance Definition at line 44 of file Database.java. References g, and GUI.getInstance(). Referenced by getInstance(). Here is the call graph for this function:

---

Member Function Documentation

static Database Database.getInstance (   )  [static]

Enforces the Singleton pattern to ensure only a single instance of this class exists. Returns the instance of this class if it is instantiated, otherwise it returns a new instantiation of this class. Returns: An instance of this class. Definition at line 29 of file Database.java. References Database(), and instance. Referenced by BluetoothClient.BluetoothClient(), and BluetoothConnectionListener.BluetoothConnectionListener(). Here is the call graph for this function:

String Database.getQuestions (  String  bluetoothAddress, String  friendlyName )

Returns the list of questions for the current screen, which are available for voting by the specified bluetoothAddress. Parameters: bluetoothAddress  The bluetooth address of the client device. friendlyName  The friendly name of the client device. Returns: The list of questions to be served to the client. Definition at line 59 of file Database.java. References g, GUI.getScreenName(), and GUI.traceProgressMessage(). Referenced by BluetoothConnectionListener.run(). Here is the call graph for this function:

void Database.saveVote (  String  vote, String  bluetoothAddress )

Saves a vote into the database. Parameters: vote  The encoded string representing the vote. bluetoothAddress  The bluetooth address of the client device casting the vote. Definition at line 99 of file Database.java. Referenced by BluetoothClient.run().

---

Member Data Documentation

GUI Database.g [private]

Definition at line 19 of file Database.java. Referenced by Database(), and getQuestions().

Database Database.instance = null [static, private]

Definition at line 18 of file Database.java. Referenced by getInstance().

---

The documentation for this class was generated from the following file:

• /Users/Nick/UniVote/Final/Server Application/Database.java

---