editcustomer.java

Enjoy Web Dev With Tapestry 一书的源代码

package com.ttdev.bank;

import org.apache.tapestry.*;
import org.apache.tapestry.annotations.*;
import org.apache.tapestry.event.*;
import org.apache.tapestry.html.*;

public abstract class EditCustomer extends BasePage implements PageBeginRenderListener {
	@InjectObject("service:com.ttdev.bank.EditCustomerService")
	public abstract EditCustomerService getEditService();

	public abstract String getCustomerId();
	public abstract Customer getOldCustomer();
	public abstract Customer getCurrentCustomer();

	public abstract void setCustomerId(String customerId);
	public abstract void setCurrentCustomer(Customer customer);
	public abstract void setOldCustomer(Customer customer);

	public void pageBeginRender(PageEvent event) {
		if (!event.getRequestCycle().isRewinding()) {
			Customer customer = getEditService().getCustomerForEdit(getCustomerId());
			setCurrentCustomer(customer);
			setOldCustomer(customer);
		}
	}
	@InjectPage("GetCustomerId")
	public abstract GetCustomerId getQueryIdPage();

	@InjectPage("EditCustomerSuccess")
	public abstract IPage getSuccessPage();

	public IPage onOk() {
		try {
			String customerId = getOldCustomer().getId();
			Customer currentCustomer = getCurrentCustomer();
			currentCustomer.setId(customerId);
			getEditService().saveCustomer(currentCustomer, getOldCustomer());
			return getSuccessPage();
		} catch (RuntimeException e) {
			getQueryIdPage().getDelegate().setFormComponent(null);
			getQueryIdPage().getDelegate().record(e.getMessage(), null);
			return getQueryIdPage();
		}
	}
}