「オブジェクト」をデータベースに追加して TableView に表示しようとすると、 UnsupportedOperationException が表示されます。このコードを「public void initialize()」に追加してテキストフィールドを「SearchBoxes」にするまで、すべて問題ありませんでした。
FilteredList <Paisjet> filteredData = new FilteredList<>(data,e -> true);
paisjaSearch.textProperty().addListener((observableValue,oldValue,newValue) ->
{
filteredData.setPredicate( paisjet ->
{
if(newValue == null || newValue.isEmpty())
{
return true;
}
String lowerCaseFilter = newValue.toLowerCase();
if(paisjet.getPaisja().toLowerCase().contains(lowerCaseFilter))
{
return true;
}
return false;
});
});
kategoriaSearch.textProperty().addListener((observableValue,oldValue,newValue) ->
{
filteredData.setPredicate( paisjet ->
{
if(newValue == null || newValue.isEmpty())
{
return true;
}
String lowerCaseFilter = newValue.toLowerCase();
if(paisjet.getKategoria().toLowerCase().contains(lowerCaseFilter))
{
return true;
}
return false;
});
});
prodhuesiSearch.textProperty().addListener((observableValue,oldValue,newValue) ->
{
filteredData.setPredicate( paisjet ->
{
if(newValue == null || newValue.isEmpty())
{
return true;
}
String lowerCaseFilter = newValue.toLowerCase();
if(paisjet.getProdhuesi().toLowerCase().contains(lowerCaseFilter))
{
return true;
}
return false;
});
});
modeliSearch.textProperty().addListener((observableValue,oldValue,newValue) ->
{
filteredData.setPredicate( paisjet ->
{
if(newValue == null || newValue.isEmpty())
{
return true;
}
String lowerCaseFilter = newValue.toLowerCase();
if(paisjet.getModeli().toLowerCase().contains(lowerCaseFilter))
{
return true;
}
return false;
});
});
SortedList <Paisjet> sortedData = new SortedList<>(filteredData);
sortedData.comparatorProperty().bind(tableView.comparatorProperty());
tableView.setItems(sortedData);
出力:
Caused by: java.lang.UnsupportedOperationException
at java.util.AbstractList.remove(AbstractList.java:161)
at java.util.AbstractList$Itr.remove(AbstractList.java:374)
at java.util.AbstractList.removeRange(AbstractList.java:571)
at java.util.AbstractList.clear(AbstractList.java:234)
at main.MainWindowController.clearTable(MainWindowController.java:315)
at main.MainWindowController.addToTableFromDatabase(MainWindowController.java:320)
at main.MainWindowController.addToDatabase(MainWindowController.java:309)
... 61 more
clearTable():
public void clearTable()
{
tableView.getItems().clear(); // line 315 at OUTPUT ERROR
}
addToTableFromDatabase():
public void addToTableFromDatabase() throws ClassNotFoundException, SQLException
{
clearTable(); //line 320 at OUTPUT ERROR
Class.forName("com.mysql.jdbc.Driver");
String url="jdbc:mysql://***.***.**.*:****/*********";
String uname="*****";
String pass="*********";
connect = (Connection) DriverManager.getConnection(url,uname,pass);
Statement statement;
String query = "SELECT * FROM paisjettable" ;
statement = connect.createStatement();
ResultSet rs = statement.executeQuery(query);
while(rs.next())
{
int id = rs.getInt("id");
String prodhuesi = rs.getString("prodhuesi");
String modeli = rs.getString("modeli");
String paisja = rs.getString("paisja");
String pjesa = rs.getString("pjesa");
String infoshtese = rs.getString("infoshtese");
double qmimi = rs.getDouble("qmimi");
double punedore = rs.getDouble("punedore");
double pagesa = rs.getDouble("pagesa");
int sasia = rs.getInt("sasia");
paisjet = new Paisjet(id,prodhuesi,modeli,paisja,pjesa,qmimi,punedore,pagesa,sasia,infoshtese);
data.add(paisjet);
tableView.setItems(data);
}
rs.close();
connect.close();
}
addToDatabase():
public void addToDatabase() throws ClassNotFoundException, SQLException
{
addToDatabaseMethod(count,prodhuesiField.getText(),modeliField.getText(),paisjaField.getText(),pjesaField.getText(),Double.parseDouble(qmimiField.getText()),Double.parseDouble(puneDoreField.getText()),Integer.parseInt(sasiaField.getText()),infoArea.getText());
count++;
prodhuesiField.clear();
modeliField.clear();
paisjaField.clear();
pjesaField.clear();
qmimiField.clear();
puneDoreField.clear();
sasiaField.clear();
infoArea.clear();
addToTableFromDatabase(); // line 309 from OUTPUT ERROR
}