JavaFX TableView editável com TextField, DatePicker e Menus Dropdowns (com base no exemplo: https://gist.github.com/haisi/0a82e17daf586c9bab52)

ComboBoxIntegerEditingCell

package editabletableview;

import javafx.scene.control.ComboBox;
import javafx.scene.control.ListCell;
import javafx.scene.control.TableCell;

class ComboBoxIntegerEditingCell extends TableCell<Person, Integer> {

    private ComboBox<Integer> comboBox;

     ComboBoxIntegerEditingCell() {
    }

    @Override
    public void startEdit() {
        if (!isEmpty()) {
            super.startEdit();
            createComboBox();
            setText(null);
            setGraphic(comboBox);
        }
    }

    @Override
    public void cancelEdit() {
        super.cancelEdit();

        setText(getValue().toString());
        setGraphic(null);
    }

    @Override
    public void updateItem(Integer item, boolean empty) {
        super.updateItem(item, empty);

        if (empty) {
            setText(null);
            setGraphic(null);
        } else {
            if (isEditing()) {
                if (comboBox != null) {
                    comboBox.setValue(getValue());
                }
                setText(getValue().toString());
                setGraphic(comboBox);
            } else {
                setText(getValue().toString() );
                setGraphic(null);
            }
        }
    }

    private void createComboBox() {
        comboBox = new ComboBox<>(Main.pontuacao);
        comboBoxConverter(comboBox);
        comboBox.valueProperty().set(getValue());
        comboBox.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
        comboBox.setOnAction((e) -> {
            System.out.println("Committed: " + comboBox.getSelectionModel().getSelectedItem());
            commitEdit(comboBox.getSelectionModel().getSelectedItem());
        }); 
    }

    private void comboBoxConverter(ComboBox<Integer> comboBox) {
        // Define rendering of the list of values in ComboBox drop down. 
        comboBox.setCellFactory((c) -> {
            return new ListCell<Integer>() {
                @Override
                protected void updateItem(Integer item, boolean empty) {
                    super.updateItem(item, empty);

                    if (item == null || empty) {
                        setText("0");
                    } else {
                        setText(item.toString());
                    }
                }
            };
        });
    }

    private Integer getValue() {
        return getItem() == null ? 0 : getItem();
    }
}

ComboBoxStringEditingCell

package editabletableview;

import javafx.scene.control.ComboBox;
import javafx.scene.control.ListCell;
import javafx.scene.control.TableCell;

class ComboBoxStringEditingCell extends TableCell<Person, String> {

    private ComboBox<String> comboBox;

    ComboBoxStringEditingCell() {
    }

    @Override
    public void startEdit() {
        if (!isEmpty()) {
            super.startEdit();
            createComboBox();
            setText(null);
            setGraphic(comboBox);
        }
    }

    @Override
    public void cancelEdit() {
        super.cancelEdit();

        setText(getValue());
        setGraphic(null);
    }

    @Override
    public void updateItem(String item, boolean empty) {
        super.updateItem(item, empty);

        if (empty) {
            setText(null);
            setGraphic(null);
        } else {
            if (isEditing()) {
                if (comboBox != null) {
                    comboBox.setValue(getValue());
                }
                setText(getValue() );
                setGraphic(comboBox);
            } else {
                setText(getValue() );
                setGraphic(null);
            }
        }
    }

    private void createComboBox() {
        comboBox = new ComboBox<>(Main.qualificacao);
        comboBoxConverter(comboBox);
        comboBox.valueProperty().set(getValue());
        comboBox.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
        comboBox.setOnAction((e) -> {
            System.out.println("Committed: " + comboBox.getSelectionModel().getSelectedItem());
            commitEdit(comboBox.getSelectionModel().getSelectedItem());
        });
//        comboBox.focusedProperty().addListener((ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) -> {
//            if (!newValue) {
//                commitEdit(comboBox.getSelectionModel().getSelectedItem());
//            }
//        });
    }

    private void comboBoxConverter(ComboBox<String> comboBox) {
        // Define rendering of the list of values in ComboBox drop down. 
        comboBox.setCellFactory((c) -> {
            return new ListCell<String>() {
                @Override
                protected void updateItem(String item, boolean empty) {
                    super.updateItem(item, empty);

                    if (item == null || empty) {
                        setText(null);
                    } else {
                        setText(item);
                    }
                }
            };
        });
    }

    private String getValue() {
        return getItem() == null ? "" : getItem();
    }
}

DateEditingCell

package editabletableview;

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.Date;

import javafx.scene.control.DatePicker;
import javafx.scene.control.TableCell;

class DateEditingCell extends TableCell<Person, Date> {

	private DatePicker datePicker;

  DateEditingCell() {
  }

	@Override
	public void startEdit() {
		if (!isEmpty()) {
			super.startEdit();
			createDatePicker();
			setText(null);
			setGraphic(datePicker);
		}
	}

	@Override
	public void cancelEdit() {
		super.cancelEdit();

		setText(getDate().toString());
		setGraphic(null);
	}

	@Override
	public void updateItem(Date item, boolean empty) {
		super.updateItem(item, empty);

		if (empty) {
			setText(null);
			setGraphic(null);
		} else {
			if (isEditing()) {
				if (datePicker != null) {
					datePicker.setValue(getDate());
				}
				setText(null);
				setGraphic(datePicker);
			} else {
				setText(getDate().format(DateTimeFormatter.ofLocalizedDate(FormatStyle.MEDIUM)));
				setGraphic(null);
			}
		}
	}

	private void createDatePicker() {
		datePicker = new DatePicker(getDate());
		datePicker.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
		datePicker.setOnAction((e) -> {
			System.out.println("Committed: " + datePicker.getValue().toString());
			commitEdit(Date.from(datePicker.getValue().atStartOfDay(ZoneId.systemDefault()).toInstant()));
		}); 
	}

	private LocalDate getDate() {
		return getItem() == null ? LocalDate.now()
				: getItem().toInstant().atZone(ZoneId.systemDefault()).toLocalDate();
	}
}

EditableTable.Main

/*
 * I don't care
 */
package editabletableview;

import java.time.LocalDate;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.util.Date;
import java.util.List;
import javafx.application.Application;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleListProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.event.ActionEvent;
import javafx.geometry.Insets;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.ComboBox;
import javafx.scene.control.DatePicker;
import javafx.scene.control.Label;
import javafx.scene.control.ListCell;
import javafx.scene.control.TableCell;
import javafx.scene.control.TableColumn;
import javafx.scene.control.TableView;
import javafx.scene.control.TextField;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import javafx.util.Callback;

/**
 *
 * @author Hasan Kara <hasan.kara@fhnw.ch>
 */
public class Main extends Application {

	private TableView<PostTrained> table = new TableView<>();

	final static ObservableList<String> qualificacao = FXCollections.observableArrayList(("Positiva"), ("Neutra"),
			("Negativa"));

	// não será usado por enquanto, apenas para estudo.
	final static ObservableList<Integer> pontuacao = FXCollections.observableArrayList(-3, -2, -1, 0, 1, 2, 3);

	private final ObservableList<PostTrained> data = FXCollections.observableArrayList(
			new PostTrained("Mensagem 1", qualificacao.get(0), pontuacao.get(1), new Date()),
			new PostTrained("Mensagem 2", qualificacao.get(1), pontuacao.get(1), new Date()),
			new PostTrained("Mensagem 3", qualificacao.get(2), pontuacao.get(1), new Date()),
			new PostTrained("Mensagem 4", qualificacao.get(2), pontuacao.get(1), new Date()));

	final HBox hb = new HBox();

	@Override
	public void start(Stage stage) {
		Scene scene = new Scene(new Group());
		stage.setWidth(800);
		stage.setHeight(600);

		final Label label = new Label("Seleção de Mensagens");
		label.setFont(new Font("Arial", 20));

		table.setEditable(true);

		// Mensagem
		Callback<TableColumn<PostTrained, String>, TableCell<PostTrained, String>> msgCellFactory = (
				TableColumn<PostTrained, String> param) -> new TextStringEditingCell();

		Callback<TableColumn<PostTrained, String>, TableCell<PostTrained, String>> qlfComboBoxCellFactory = (
				TableColumn<PostTrained, String> param) -> new ComboBoxStringEditingCell();

		Callback<TableColumn<PostTrained, Integer>, TableCell<PostTrained, Integer>> ptcComboBoxCellFactory = (
				TableColumn<PostTrained, Integer> param) -> new ComboBoxIntegerEditingCell();

		Callback<TableColumn<PostTrained, Date>, TableCell<PostTrained, Date>> crcDateCellFactory = (
				TableColumn<PostTrained, Date> param) -> new DateEditingCell();

		TableColumn<PostTrained, String> msgCol = new TableColumn<>("Mensagem");
		msgCol.setMinWidth(500);
		msgCol.setCellValueFactory(cellData -> cellData.getValue().mensagemProperty());
		msgCol.setCellFactory(msgCellFactory);
		msgCol.setOnEditCommit((TableColumn.CellEditEvent<PostTrained, String> t) -> {
			((PostTrained) t.getTableView().getItems().get(t.getTablePosition().getRow())).setMensagem(t.getNewValue());

		});

		TableColumn<PostTrained, String> qualificacaoCol = new TableColumn<>("Qualificação");
		qualificacaoCol.setMinWidth(80);
		qualificacaoCol.setCellValueFactory(cellData -> cellData.getValue().qualificacaoProperty());
		qualificacaoCol.setCellFactory(qlfComboBoxCellFactory);
		qualificacaoCol.setOnEditCommit((TableColumn.CellEditEvent<PostTrained, String> t) -> {
			((PostTrained) t.getTableView().getItems().get(t.getTablePosition().getRow())).setQualificacao(t.getNewValue());

		});

		TableColumn<PostTrained, Integer> pontuacaoCol = new TableColumn<>("Pontuacao");
		pontuacaoCol.setMinWidth(10);
		pontuacaoCol.setCellValueFactory(cellData -> cellData.getValue().pontuacaoProperty());
		pontuacaoCol.setCellFactory(ptcComboBoxCellFactory);
		pontuacaoCol.setOnEditCommit((TableColumn.CellEditEvent<PostTrained, Integer> t) -> {
			((PostTrained) t.getTableView().getItems().get(t.getTablePosition().getRow())).setPontuacao(t.getNewValue());

		});

		TableColumn<PostTrained, Date> criacaoCol = new TableColumn<>("Data de Criação");
		criacaoCol.setMinWidth(100);
		criacaoCol.setCellValueFactory(cellData -> cellData.getValue().criacaoeProperty());
		criacaoCol.setCellFactory(crcDateCellFactory);
		criacaoCol.setOnEditCommit((TableColumn.CellEditEvent<PostTrained, Date> t) -> {
			((PostTrained) t.getTableView().getItems().get(t.getTablePosition().getRow())).setCriacao(t.getNewValue());

		});

		table.setItems(data);
		table.getColumns().addAll(msgCol, qualificacaoCol, pontuacaoCol, criacaoCol);

		final TextField addMsg = new TextField();
		addMsg.setPromptText("Mensagem");
		addMsg.setMaxWidth(msgCol.getPrefWidth());

		final TextField addLastName = new TextField();
		addLastName.setPromptText("Qualificacao");
		addLastName.setMaxWidth(qualificacaoCol.getPrefWidth());

		final TextField addEmail = new TextField();
		addEmail.setPromptText("Pontuacao");
		addEmail.setMaxWidth(pontuacaoCol.getPrefWidth());

		final Button addButton = new Button("Add");
		addButton.setOnAction((ActionEvent e) -> {
			data.add(new PostTrained(addMsg.getText(), addLastName.getText(), new Integer(addEmail.getText()), new Date()));
			addMsg.clear();
			addLastName.clear();
			addEmail.clear();
		});

		hb.getChildren().addAll(addMsg, addLastName, addEmail, addButton);
		hb.setSpacing(3);

		final VBox vbox = new VBox();
		vbox.setSpacing(5);
		vbox.setPadding(new Insets(10, 0, 0, 10));
		vbox.getChildren().addAll(label, table, hb);

		((Group) scene.getRoot()).getChildren().addAll(vbox);

		stage.setScene(scene);
		stage.show();
	}

	/**
	 * @param args
	 *            the command line arguments
	 */
	public static void main(String[] args) {
		launch(args);
	}
}

PostTrained

package editabletableview;

import java.util.Date;

import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.beans.property.StringProperty;

public  class PostTrained {

    private final SimpleStringProperty mensagem;
    private final SimpleObjectProperty<String> qualificacao;
    private final SimpleObjectProperty<Integer> pontuacao;
	  private final SimpleObjectProperty<Date> criacao;
 

    public PostTrained(String p_mensagem, String p_qualificacao, Integer p_pontuacao, Date p_criacao) {
    	this.mensagem = new SimpleStringProperty(p_mensagem);
        this.qualificacao = new SimpleObjectProperty<String>(p_qualificacao);
        this.pontuacao = new SimpleObjectProperty<Integer>(p_pontuacao);
        this.criacao = new SimpleObjectProperty<>(p_criacao);
	}

    public String getMensagem() {
        return mensagem.get();
    }

    public StringProperty mensagemProperty() {
        return this.mensagem;
    }

    public void setMensagem(String p_msg) {
        this.mensagem.set(p_msg);
    }
    
    public Date getCriacao() {
        return criacao.get();
    }

    public ObjectProperty<Date> criacaoeProperty() {
        return this.criacao;
    }

    public void setCriacao(Date p_date) {
        this.criacao.set(p_date);
    }

    public String getQualificacao() {
        return qualificacao.get();
    }

    public ObjectProperty<String> qualificacaoProperty() {
        return this.qualificacao;
    }

    public void setQualificacao(String typ) {
        this.qualificacao.set(typ);
    }

    public Integer getPontuacao() {
        return pontuacao.get();
    }

    public ObjectProperty<Integer> pontuacaoProperty() {
        return this.pontuacao;
    }

    public void setPontuacao(Integer birthday) {
        this.pontuacao.set(birthday);
    }

}

TextStringEditingCell

package editabletableview;

import javafx.beans.value.ObservableValue;
import javafx.scene.control.TableCell;
import javafx.scene.control.TextField;

class TextStringEditingCell extends TableCell<PostTrained, String> {

	private TextField textField;

	TextStringEditingCell() {
	}

	@Override
	public void startEdit() {
		if (!isEmpty()) {
			super.startEdit();
			createTextField();
			setText(null);
			setGraphic(textField);
			textField.selectAll();
		}
	}

	@Override
	public void cancelEdit() {
		super.cancelEdit();

		setText((String) getItem());
		setGraphic(null);
	}

	@Override
	public void updateItem(String item, boolean empty) {
		super.updateItem(item, empty);

		if (empty) {
			setText(item);
			setGraphic(null);
		} else {
			if (isEditing()) {
				if (textField != null) {
					textField.setText(getString());
					// setGraphic(null);
				}
				setText(null);
				setGraphic(textField);
			} else {
				setText(getString());
				setGraphic(null);
			}
		}
	}

	private void createTextField() {
		textField = new TextField(getString());
		textField.setMinWidth(this.getWidth() - this.getGraphicTextGap() * 2);
		textField.setOnAction((e) -> commitEdit(textField.getText()));
		textField.focusedProperty().addListener(
				(ObservableValue<? extends Boolean> observable, Boolean oldValue, Boolean newValue) -> {
					if (!newValue) {
						System.out.println("Commiting " + textField.getText());
						commitEdit(textField.getText());
					}
				});
	}

	private String getString() {
		return getItem() == null ? "" : getItem();
	}
}