Java Code Examples for java.sql.ResultSet.setFetchDirection()

The following are Jave code examples for showing how to use setFetchDirection() of the java.sql.ResultSet class. You can vote up the examples you like. Your votes will be used in our system to get more good examples.
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Example 1
Project: GUI-Sorting-Time-Comparison-using-JavaFx   File: MainController.java   View Source Code Vote up 6 votes
@Override
public void initialize(URL arg0, ResourceBundle arg1) {
	try {
		myConn = DriverManager.getConnection("jdbc:mysql://localhost:3306/gui_assignment?autoReconnect=true&useSSL=false", "root", "root");
		stmt = myConn.createStatement();
		
		ResultSet rs = stmt.executeQuery("select Temperature_Reading from temp_values");
		values = new int[rs.last() ? rs.getRow() : 0];
		
		int[] temp = {10000,100000,500000};
		noOfTempReadings = temp;
		
		rs.setFetchDirection(ResultSet.FETCH_REVERSE);
		rs.next();
		int i = values.length-1;
		while (rs.previous()) {
			values[i--] = rs.getInt("Temperature_Reading");
		}
	} catch (SQLException e) {
		e.printStackTrace();
		System.err.println("DATABASE CONNECT ERROR");
		System.exit(1);
	}
	
	System.out.println("No. of entries in database = "+values.length);
	
	ObservableList<String> pivotValues = FXCollections.observableArrayList("n/2","n/4","n/6");
	pivotSelect.setItems(pivotValues);
	pivotSelect.setValue("n/2");
	pivotSelect.setDisable(true);
	
	ObservableList<Integer> baseValues = FXCollections.observableArrayList(2,10,16);
	base.setItems(baseValues);
	base.setValue(10);
	base.setDisable(true);
	
	btnViewGraph.setDisable(true);
}