booktablemodel.java

使用swing做的熟悉控件使用的DEMO

package frame;
import javax.swing.table.*;
import java.util.*;
import book.*;

public class BookTableModel extends DefaultTableModel {
	private static String colNames[];
	//constructor
	private BookTableModel(Vector myData, Vector cols) {
		super(myData, cols);
	}

	//static method to new a object 
	public static BookTableModel getBookModel(Collection data, String names[]) {
		colNames = names;
		Vector myData = genData(data);
		Vector cols = genColNames(names);
		return new BookTableModel(myData, cols);
	}
		
	//method to get the colNames Array
	public String[] getColNames() {
		return this.colNames;
	}
	
	//method to generate colnames
	public static Vector genColNames (String names[]) {
		Vector result = new Vector();
		for(int i = 0; i < names.length ; i++) {
			result.add(names[i]);
		}
		return result;
	} 

	//method to generate multi-column data
	public static Vector genData(Collection data) {
		Vector result = new Vector();
		Vector tem = null;
		Book bk = null;
		Iterator i = data.iterator();
		while(i.hasNext()) {
			bk = (Book)i.next();
			tem = genRowData(bk);
			result.add(tem);
		}		
		return result;
	}
	
	//method to generate single row data
	public static Vector genRowData(Book bk) {
	//	System.out.println(bk);
		Vector result = new Vector();
		for(int i = 0; i < colNames.length; i++) {
			if(colNames[i].equals(Book.KEY)) result.add(new Integer(bk.getBookId()));
			else if(colNames[i].equals(Book.NAME)) result.add(bk.getName());
			else if(colNames[i].equals(Book.AUTHOR)) result.add(bk.getAuthor());
			else if(colNames[i].equals(Book.PUBLISH)) result.add(bk.getFrom());
			else if(colNames[i].equals(Book.TYPE)) result.add(new Integer(bk.getBookType()));
			else if(colNames[i].equals(Book.COST)) result.add(new Double(bk.getCost()));	
		}
		return result;
	}
}