Spring Framework example source code file (DataBinderFieldAccessTests.java)

This example Spring Framework source code file (DataBinderFieldAccessTests.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Spring Framework tags/keywords

bean, bindexception, bindingresult, correct, databinder, databinder, exception, fieldaccessbean, fieldaccessbean, javabean, mutablepropertyvalues, mutablepropertyvalues, propertyvalue, propertyvalue, rod, same, util

The Spring Framework DataBinderFieldAccessTests.java source code

/*
 * Copyright 2002-2006 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.validation;

import java.beans.PropertyEditorSupport;
import java.util.Map;

import junit.framework.TestCase;

import org.springframework.beans.FieldAccessBean;
import org.springframework.beans.MutablePropertyValues;
import org.springframework.beans.NotWritablePropertyException;
import org.springframework.beans.PropertyValue;
import org.springframework.beans.TestBean;

/**
 * @author Juergen Hoeller
 * @since 07.03.2006
 */
public class DataBinderFieldAccessTests extends TestCase {

	public void testBindingNoErrors() throws Exception {
		FieldAccessBean rod = new FieldAccessBean();
		DataBinder binder = new DataBinder(rod, "person");
		assertTrue(binder.isIgnoreUnknownFields());
		binder.initDirectFieldAccess();
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "Rod"));
		pvs.addPropertyValue(new PropertyValue("age", new Integer(32)));
		pvs.addPropertyValue(new PropertyValue("nonExisting", "someValue"));

		binder.bind(pvs);
		binder.close();

		assertTrue("changed name correctly", rod.getName().equals("Rod"));
		assertTrue("changed age correctly", rod.getAge() == 32);

		Map m = binder.getBindingResult().getModel();
		assertTrue("There is one element in map", m.size() == 2);
		FieldAccessBean tb = (FieldAccessBean) m.get("person");
		assertTrue("Same object", tb.equals(rod));
	}

	public void testBindingNoErrorsNotIgnoreUnknown() throws Exception {
		FieldAccessBean rod = new FieldAccessBean();
		DataBinder binder = new DataBinder(rod, "person");
		binder.initDirectFieldAccess();
		binder.setIgnoreUnknownFields(false);
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "Rod"));
		pvs.addPropertyValue(new PropertyValue("age", new Integer(32)));
		pvs.addPropertyValue(new PropertyValue("nonExisting", "someValue"));

		try {
			binder.bind(pvs);
			fail("Should have thrown NotWritablePropertyException");
		}
		catch (NotWritablePropertyException ex) {
			// expected
		}
	}

	public void testBindingWithErrors() throws Exception {
		FieldAccessBean rod = new FieldAccessBean();
		DataBinder binder = new DataBinder(rod, "person");
		binder.initDirectFieldAccess();
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "Rod"));
		pvs.addPropertyValue(new PropertyValue("age", "32x"));
		binder.bind(pvs);

		try {
			binder.close();
			fail("Should have thrown BindException");
		}
		catch (BindException ex) {
			assertTrue("changed name correctly", rod.getName().equals("Rod"));
			//assertTrue("changed age correctly", rod.getAge() == 32);

			Map map = binder.getBindingResult().getModel();
			//assertTrue("There are 3 element in map", m.size() == 1);
			FieldAccessBean tb = (FieldAccessBean) map.get("person");
			assertTrue("Same object", tb.equals(rod));

			BindingResult br = (BindingResult) map.get(BindingResult.MODEL_KEY_PREFIX + "person");
			assertTrue("Added itself to map", br == binder.getBindingResult());
			assertTrue(br.hasErrors());
			assertTrue("Correct number of errors", br.getErrorCount() == 1);

			assertTrue("Has age errors", br.hasFieldErrors("age"));
			assertTrue("Correct number of age errors", br.getFieldErrorCount("age") == 1);
			assertEquals("32x", binder.getBindingResult().getFieldValue("age"));
			assertEquals("32x", binder.getBindingResult().getFieldError("age").getRejectedValue());
			assertEquals(0, tb.getAge());
		}
	}

	public void testBindingWithErrorsAndCustomEditors() throws Exception {
		FieldAccessBean rod = new FieldAccessBean();
		DataBinder binder = new DataBinder(rod, "person");
		binder.initDirectFieldAccess();
		binder.registerCustomEditor(TestBean.class, "spouse", new PropertyEditorSupport() {
			public void setAsText(String text) throws IllegalArgumentException {
				setValue(new TestBean(text, 0));
			}
			public String getAsText() {
				return ((TestBean) getValue()).getName();
			}
		});
		MutablePropertyValues pvs = new MutablePropertyValues();
		pvs.addPropertyValue(new PropertyValue("name", "Rod"));
		pvs.addPropertyValue(new PropertyValue("age", "32x"));
		pvs.addPropertyValue(new PropertyValue("spouse", "Kerry"));
		binder.bind(pvs);

		try {
			binder.close();
			fail("Should have thrown BindException");
		}
		catch (BindException ex) {
			assertTrue("changed name correctly", rod.getName().equals("Rod"));
			//assertTrue("changed age correctly", rod.getAge() == 32);

			Map model = binder.getBindingResult().getModel();
			//assertTrue("There are 3 element in map", m.size() == 1);
			FieldAccessBean tb = (FieldAccessBean) model.get("person");
			assertTrue("Same object", tb.equals(rod));

			BindingResult br = (BindingResult) model.get(BindingResult.MODEL_KEY_PREFIX + "person");
			assertTrue("Added itself to map", br == binder.getBindingResult());
			assertTrue(br.hasErrors());
			assertTrue("Correct number of errors", br.getErrorCount() == 1);

			assertTrue("Has age errors", br.hasFieldErrors("age"));
			assertTrue("Correct number of age errors", br.getFieldErrorCount("age") == 1);
			assertEquals("32x", binder.getBindingResult().getFieldValue("age"));
			assertEquals("32x", binder.getBindingResult().getFieldError("age").getRejectedValue());
			assertEquals(0, tb.getAge());

			assertTrue("Does not have spouse errors", !br.hasFieldErrors("spouse"));
			assertEquals("Kerry", binder.getBindingResult().getFieldValue("spouse"));
			assertNotNull(tb.getSpouse());
		}
	}

}