Java GlazedList单个列筛选

Question

我目前有一个表，在各个列标题中有一个textfield，它根据每个列进行过滤。。我试着用上釉列表来代替，但我该怎么做呢？每列都应该有一个单独的文本字段，并根据所有文本字段进行过滤，这些文本字段根据单独的列进行过滤。 例如：列有“名字”和“姓氏”的表格。 该表将根据名字过滤器中的名字和姓氏过滤器中的姓氏筛选结果

Answer 1

首先你需要弄清楚的是，GlazedList主要是关于处理列表的对象的，线索在名称中。许多人将其视为添加排序和；将功能过滤到表和列表，这肯定会引起麻烦

因此，首先关注glazedList将为您提供一种称为EventList的特殊类型的列表结构，这是您的核心数据结构；从那里，您将获得用于转换、排序、筛选等的有用方法。然后，由于它非常慷慨，有易于使用的类将您的事件列表链接到JList或JTable

一旦这些都连接好了，对列表的更改和转换将自动传播到链接到列表的任何Swing组件

无论如何，这里有一个示例类，它将向您展示如何创建事件列表，然后通过Swing组件应用文本过滤器，然后将其链接到Swing表。（这不包括排序，也不包括如何获取所选项目，但文档非常优秀。）

使用Java9和GlazedList 1.11进行测试

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();
            }
        });
    }
}