filefilterfactory.java

来自「一个包含简单查询的JAVA记事本 内容简单 初学者适用」· Java 代码 · 共 50 行

/*
 * FileFilterFactory.java
 *
 * Created on 2008年4月17日, 上午9:00
 *
 * To change this template, choose Tools | Template Manager
 * and open the template in the editor.
 */

package note;

import java.io.File;
import java.lang.reflect.Method;
import javax.swing.filechooser.FileFilter;

public abstract class FileFilterFactory {
    
    public static FileFilter createFilter (String description, String ... flag) {
        
        class MyFileFilter extends FileFilter {
            //对文件的描述
            private String description;
            //文件后缀名
            private String[] flag;
        
            public MyFileFilter(String description, String ... flag) {
                this.description = description;
                this.flag = flag;
            }
        
            public boolean accept (File f) {
                boolean isFile = false;
                //筛选文件名
                for (int i = 0; i < flag.length; ++i) {
                    if (f.getName ().toLowerCase ().endsWith (flag[i]) || f.isDirectory ()) {
                        isFile = true;
                        break;
                    }
                }
                return isFile;
            }
            //返回描述
            public String getDescription () {
                return description;
            }
        };
        
        return new MyFileFilter(description, flag);
    }
}