Java JTable、RowFilter和RowFilter.Entry
请告诉我一个关于()的问题Java JTable、RowFilter和RowFilter.Entry,java,swing,jtable,rowfilter,Java,Swing,Jtable,Rowfilter,请告诉我一个关于()的问题 正则表达式(字符串)、数字、日期 连同 和,或,或 不知道怎么做 为AND、OR或NOR处理空值 如果正则表达式(字符串)、数字、日期具有相同的逻辑或存在“小差异” 特别是如何比较日期值 欢迎提供更详细的描述 在这里,我想在frame.add(newjbutton(newabstractaction(“togglefilter”){ 导入java.awt.BorderLayout; 导入java.awt.event.ActionEvent; 导入java
- 正则表达式(字符串)、数字、日期
- 和,或,或
- 为AND、OR或NOR处理空值
- 如果正则表达式(字符串)、数字、日期具有相同的逻辑或存在“小差异”
- 特别是如何比较日期值
frame.add(newjbutton(newabstractaction(“togglefilter”){
导入java.awt.BorderLayout;
导入java.awt.event.ActionEvent;
导入java.util.Calendar;
导入java.util.Date;
导入javax.swing.*;
导入javax.swing.table.DefaultTableModel;
导入javax.swing.table.TableModel;
导入javax.swing.table.TableRowSorter;
公共类JTableFilterDemo{
专用静态桌面分拣机;
私有对象[][]数据={{“A”,5,true,new Date()},
{“B”,2,false,new Date()},{“C”,4,false,new Date()},
{“D”,8,true,new Date()},{“E”,13,false,new Date()},
{“F”,7,true,新日期()},{“G”,55,false,新日期()},
{“H”,6,false,new Date()},{“I”,1,true,new Date()};
私有字符串columnNames[]={“项”、“值”、“布尔值”、“日期”};
private TableModel model=新的DefaultTableModel(数据、列名){
私有静态最终长serialVersionUID=1L;
@凌驾
公共类getColumnClass(int列){
开关(列){
案例1:
返回Integer.class;
案例2:
返回Boolean.class;
案例3:
返回日期.class;
违约:
返回字符串.class;
}
}
};
专用JTable表=新JTable(模型);
私有日期修改日期=新日期();
公共JTableFilterDemo(){
modifyDateInTable();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
RowFilter筛选器=新的RowFilter(){
@凌驾
公共布尔包含(RowFilter.Entry){
//String str=(String)entry.getValue(0);//String
//返回str.matches((“(?i)^a | ^g”);//字符串
//Boolean bol=(Boolean)entry.getValue(2);//Boolean
//返回bol.booleanValue()==false;//布尔值
//日期日期=(日期)项。getValue(3);//日期
//返回日期.getTime()>(长)(新日期().getTime());//日期
//return((Number)entry.getValue(1)).intValue()%2==0;//整数
//return((Number)entry.getValue(1)).intValue()>0;//整数
return((Number)entry.getValue(1)).intValue()>10
&((Number)entry.getValue(1)).intValue()<50;//并带有整数
}
};
分拣机=新的表格行分拣机(型号);
分拣机。setRowFilter(过滤器);
表.SetRow分拣机(分拣机);
JScrollPane scrollPane=新的JScrollPane(表);
JFrame frame=新JFrame(“过滤表”);
添加(新的JButton(新的抽象操作(“切换过滤器”){
私有静态最终长serialVersionUID=1L;
private RowFilter=new RowFilter(){
@凌驾
公共布尔include(javax.swing.RowFilter.Entry我没有看到意外的结果
第一个谓词很简单;它包括两个重叠集的交集,其中只有值13
的行是唯一的成员
return ((Number) entry.getValue(1)).intValue() > 10
& ((Number) entry.getValue(1)).intValue() < 50;
附录:关于RowFilter.Entry
,我发现检查and、or和not工厂如何使用私有类RowFilter.GeneralFilter
中定义的额外索引
参数很有帮助;每个子类调用父类的include()实现
用于构造函数中提供的每个筛选器。相反,日期、编号和正则表达式工厂不是这样;相反,它们都依赖于基础类型可用的谓词
附录:作为一个具体示例,选择两个模型日期,例如第一个和倒数第二个
Date d1 = (Date) model.getValueAt(0, 3);
Date d2 = (Date) model.getValueAt(model.getRowCount() - 2, 3);
创建两个包含所选日期的筛选器
RowFilter<TableModel, Integer> low =
RowFilter.dateFilter(RowFilter.ComparisonType.AFTER, d1, 3);
RowFilter<TableModel, Integer> high =
RowFilter.dateFilter(RowFilter.ComparisonType.BEFORE, d2, 3);
结果选择介于但不包括d1
和d2
之间的行
修改的SSCCE:
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class JTableFilterDemo {
private static TableRowSorter<TableModel> sorter;
private Object[][] data = {{"A", 5, true, new Date()},
{"B", 2, false, new Date()}, {"C", 4, false, new Date()},
{"D", 8, true, new Date()}, {"E", 13, false, new Date()},
{"F", 7, true, new Date()}, {"G", 55, false, new Date()},
{"H", 6, false, new Date()}, {"I", 1, true, new Date()}};
private String columnNames[] = {"Item", "Value", "Boolean", "Date"};
private TableModel model = new DefaultTableModel(data, columnNames) {
@Override
public Class<?> getColumnClass(int column) {
switch (column) {
case 1:
return Integer.class;
case 2:
return Boolean.class;
case 3:
return Date.class;
default:
return String.class;
}
}
};
private JTable table = new JTable(model);
public JTableFilterDemo() {
modifyDateInTable();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
sorter = new TableRowSorter<TableModel>(model);
table.setRowSorter(sorter);
Date d1 = (Date) model.getValueAt(0, 3);
Date d2 = (Date) model.getValueAt(model.getRowCount() - 2, 3);
RowFilter<TableModel, Integer> low = RowFilter.dateFilter(RowFilter.ComparisonType.AFTER, d1, 3);
RowFilter<TableModel, Integer> high = RowFilter.dateFilter(RowFilter.ComparisonType.BEFORE, d2, 3);
List<RowFilter<TableModel, Integer>> filters = Arrays.asList(low, high);
final RowFilter<TableModel, Integer> filter = RowFilter.andFilter(filters);
JScrollPane scrollPane = new JScrollPane(table);
JFrame frame = new JFrame("Filtering Table");
frame.add(new JButton(new AbstractAction("Toggle filter") {
@Override
public void actionPerformed(ActionEvent e) {
if (sorter.getRowFilter() != null) {
sorter.setRowFilter(null);
} else {
sorter.setRowFilter(filter);
}
}
}), BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(scrollPane);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
private void modifyDateInTable() {
Date modifDate = new Date();
Calendar c = Calendar.getInstance();
c.setTime(modifDate);
c.add(Calendar.DATE, - 1);
modifDate = c.getTime();
table.setValueAt(modifDate, 0, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +5);
modifDate = c.getTime();
table.setValueAt(modifDate, 1, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +1);
modifDate = c.getTime();
table.setValueAt(modifDate, 2, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, - 16);
modifDate = c.getTime();
table.setValueAt(modifDate, 3, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +30);
modifDate = c.getTime();
table.setValueAt(modifDate, 4, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +55);
modifDate = c.getTime();
table.setValueAt(modifDate, 5, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +155);
modifDate = c.getTime();
table.setValueAt(modifDate, 6, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, -23);
modifDate = c.getTime();
table.setValueAt(modifDate, 7, 3);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JTableFilterDemo jtfd = new JTableFilterDemo();
}
});
}
}
导入java.awt.BorderLayout;
导入java.awt.event.ActionEvent;
导入java.util.array;
导入java.util.Calendar;
导入java.util.Date;
导入java.util.List;
导入javax.swing.*;
导入javax.swing.table.DefaultTableModel;
导入javax.swing.table.TableModel;
导入javax.swing.table.TableRowSorter;
公共类JTableFilterDemo{
专用静态桌面分拣机;
私有对象[][]数据={{“A”,5,true,new Date()},
{“B”,2,false,new Date()},{“C”,4,false,new Date()},
{“D”,8,true,new Date()},{“E”,13,false,new Date()},
{“F”,7,true,新日期()},{“G”,55,false,新日期()},
{“H”,6,false,new Date()},{“I”,1,true,new Date()};
私有字符串columnNames[]={“项”、“值”、“布尔值”、“日期”};
private TableModel model=新的DefaultTableModel(数据、列名){
@凌驾
公共类getColumnClass(int列){
开关(列){
案例1:
返回Integer.class;
案例2:
返回Boolean.class;
案例3:
返回日期.class;
违约:
返回字符串.class;
}
}
};
专用JTable表=新JTable(模型);
公共JTableFilterDemo(){
modifyDateInTable();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
分拣机=新的表格行分拣机(型号);
表.SetRow分拣机(分拣机);
日期d1=(日期)model.getVal
Date d1 = (Date) model.getValueAt(0, 3);
Date d2 = (Date) model.getValueAt(model.getRowCount() - 2, 3);
RowFilter<TableModel, Integer> low =
RowFilter.dateFilter(RowFilter.ComparisonType.AFTER, d1, 3);
RowFilter<TableModel, Integer> high =
RowFilter.dateFilter(RowFilter.ComparisonType.BEFORE, d2, 3);
List<RowFilter<TableModel, Integer>> filters = Arrays.asList(low, high);
final RowFilter<TableModel, Integer> filter = RowFilter.andFilter(filters);
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.util.Arrays;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import javax.swing.*;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;
public class JTableFilterDemo {
private static TableRowSorter<TableModel> sorter;
private Object[][] data = {{"A", 5, true, new Date()},
{"B", 2, false, new Date()}, {"C", 4, false, new Date()},
{"D", 8, true, new Date()}, {"E", 13, false, new Date()},
{"F", 7, true, new Date()}, {"G", 55, false, new Date()},
{"H", 6, false, new Date()}, {"I", 1, true, new Date()}};
private String columnNames[] = {"Item", "Value", "Boolean", "Date"};
private TableModel model = new DefaultTableModel(data, columnNames) {
@Override
public Class<?> getColumnClass(int column) {
switch (column) {
case 1:
return Integer.class;
case 2:
return Boolean.class;
case 3:
return Date.class;
default:
return String.class;
}
}
};
private JTable table = new JTable(model);
public JTableFilterDemo() {
modifyDateInTable();
table.setPreferredScrollableViewportSize(table.getPreferredSize());
sorter = new TableRowSorter<TableModel>(model);
table.setRowSorter(sorter);
Date d1 = (Date) model.getValueAt(0, 3);
Date d2 = (Date) model.getValueAt(model.getRowCount() - 2, 3);
RowFilter<TableModel, Integer> low = RowFilter.dateFilter(RowFilter.ComparisonType.AFTER, d1, 3);
RowFilter<TableModel, Integer> high = RowFilter.dateFilter(RowFilter.ComparisonType.BEFORE, d2, 3);
List<RowFilter<TableModel, Integer>> filters = Arrays.asList(low, high);
final RowFilter<TableModel, Integer> filter = RowFilter.andFilter(filters);
JScrollPane scrollPane = new JScrollPane(table);
JFrame frame = new JFrame("Filtering Table");
frame.add(new JButton(new AbstractAction("Toggle filter") {
@Override
public void actionPerformed(ActionEvent e) {
if (sorter.getRowFilter() != null) {
sorter.setRowFilter(null);
} else {
sorter.setRowFilter(filter);
}
}
}), BorderLayout.SOUTH);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(scrollPane);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
private void modifyDateInTable() {
Date modifDate = new Date();
Calendar c = Calendar.getInstance();
c.setTime(modifDate);
c.add(Calendar.DATE, - 1);
modifDate = c.getTime();
table.setValueAt(modifDate, 0, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +5);
modifDate = c.getTime();
table.setValueAt(modifDate, 1, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +1);
modifDate = c.getTime();
table.setValueAt(modifDate, 2, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, - 16);
modifDate = c.getTime();
table.setValueAt(modifDate, 3, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +30);
modifDate = c.getTime();
table.setValueAt(modifDate, 4, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +55);
modifDate = c.getTime();
table.setValueAt(modifDate, 5, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, +155);
modifDate = c.getTime();
table.setValueAt(modifDate, 6, 3);
c.setTime(modifDate);
c.add(Calendar.DATE, -23);
modifDate = c.getTime();
table.setValueAt(modifDate, 7, 3);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JTableFilterDemo jtfd = new JTableFilterDemo();
}
});
}
}