Java GlazedList單個列過濾

Question

我目前在單獨的列標題中有一個帶有文本字段的表格，該表格會根據它們的每個單獨的列進行過濾。.我正嘗試使用釉面列表，但是我該怎么做呢？ 每列都應有一個單獨的文本字段，並且過濾是基於所有基於單獨列進行過濾的文本字段進行的。 EG：帶有“名字”和“姓氏”列的表。 該表將根據姓氏過濾器基於名字過濾人員的結果，並根據姓氏過濾器過濾姓氏

Answer 1

首先需要了解的是GlazedLists主要是關於處理對象列表的-線索就是名字。 許多人將其視為一種向表和列表添加排序和篩選功能的庫，這肯定會引起麻煩。

因此，首先關注GlazedLists將為您提供一種稱為EventList的特殊類型的列表結構這一事實，它是您的核心數據結構； 從那里，您將獲得有用的方法來進行轉換，排序，過濾等。然后，由於它非常龐大，因此可以使用易於使用的類將EventList鏈接到JList或JTable。

一旦將所有這些連接起來，對列表的更改和轉換將自動傳播到與其鏈接的任何Swing組件。

無論如何，這是一個示例類，它將向您展示如何創建EventList，然后通過Swing組件應用文本過濾器，然后將其全部鏈接到Swing表。 （這不涉及排序或如何獲取所選項目，但是文檔非常出色。）

使用Java 9和GlazedLists 1.11進行了測試。

import ca.odell.glazedlists.*;
import ca.odell.glazedlists.gui.TableFormat;
import ca.odell.glazedlists.matchers.MatcherEditor;
import ca.odell.glazedlists.swing.DefaultEventSelectionModel;
import ca.odell.glazedlists.swing.DefaultEventTableModel;
import ca.odell.glazedlists.swing.TextComponentMatcherEditor;

import javax.swing.*;
import java.awt.*;
import java.util.List;

public class GlazedListsMultipleTextfields {

    private JFrame frame;
    private JTable table;
    private JTextField txtFirstName;
    private JTextField txtLastName;

    private EventList people;
    private DefaultEventSelectionModel selectionModel;

    public GlazedListsMultipleTextfields() {

        setupGui();
        setupGlazedLists();
        populatedList();
        frame.setVisible(true);
    }

    private void setupGui() {

        frame = new JFrame("GlazedLists Multiple Filter Examples");
        frame.setSize(600, 600);
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        // Create the panel to hold the input textfields
        txtFirstName = new JTextField();
        JPanel pnlFirstName = new JPanel(new BorderLayout());
        pnlFirstName.add(new JLabel("First name"), BorderLayout.WEST);
        pnlFirstName.add(txtFirstName, BorderLayout.CENTER);

        txtLastName = new JTextField();
        JPanel pnlLastName = new JPanel(new BorderLayout());
        pnlLastName.add(new JLabel("Last name"), BorderLayout.WEST);
        pnlLastName.add(txtLastName, BorderLayout.CENTER);

        JPanel textInputs = new JPanel();
        textInputs.setLayout(new BoxLayout(textInputs, BoxLayout.Y_AXIS));
        textInputs.add(pnlFirstName);
        textInputs.add(pnlLastName);

        table = new JTable();
        frame.getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
        frame.getContentPane().add(textInputs, BorderLayout.NORTH);
    }

    private void populatedList() {
        people.add(new Person("John", "Grisham"));
        people.add(new Person("Patricia", "Cornwell"));
        people.add(new Person("Nicholas", "Sparks"));
        people.add(new Person("Andy", "Weir"));
        people.add(new Person("Elizabeth", "George"));
        people.add(new Person("John", "Green"));
    }

    private void setupGlazedLists() {
        people = new BasicEventList();
        MatcherEditor firstNameMatcherEditor = new TextComponentMatcherEditor(txtFirstName, new FirstNameTextFilterator());
        MatcherEditor lastNameMatcherEditor = new TextComponentMatcherEditor(txtLastName, new LastNameTextFilterator());

        FilterList filteredFirstNames = new FilterList(people, firstNameMatcherEditor);
        FilterList filteredLastNames = new FilterList(filteredFirstNames, lastNameMatcherEditor);

        TableFormat tableFormat = GlazedLists.tableFormat(new String[]{"firstName", "lastName"}, new String[]{"First Name", "Last Name"});
        DefaultEventTableModel model = new DefaultEventTableModel(filteredLastNames, tableFormat);
        selectionModel = new DefaultEventSelectionModel(filteredLastNames);

        table.setModel(model);
        table.setSelectionModel(selectionModel);
    }

    class FirstNameTextFilterator implements TextFilterator {

        @Override
        public void getFilterStrings(List list, Person person) {
            list.add(person.getFirstName());
        }
    }

    class LastNameTextFilterator implements TextFilterator {

        @Override
        public void getFilterStrings(List list, Person person) {
            list.add(person.getLastName());
        }
    }

    public class Person {
        private String firstName;
        private String lastName;

        public Person(String firstName, String lastName) {
            this.firstName = firstName;
            this.lastName = lastName;
        }

        public String getFirstName() {
            return firstName;
        }

        public String getLastName() {
            return lastName;
        }
    }

    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                new GlazedListsMultipleTextfields();
            }
        });
    }
}