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- /*
- * Copyright 2000-2016 Vaadin Ltd.
- *
- * 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 com.vaadin.data;
-
- import java.util.HashMap;
- import java.util.Locale;
- import java.util.Map;
- import java.util.Optional;
- import java.util.stream.Stream;
-
- import org.junit.Assert;
- import org.junit.Test;
-
- import com.vaadin.server.Setter;
- import com.vaadin.ui.TextField;
-
- public class BinderCustomPropertySetTest {
- public static class MapPropertyDefinition
- implements PropertyDefinition<Map<String, String>, String> {
-
- private MapPropertySet propertySet;
- private String name;
-
- public MapPropertyDefinition(MapPropertySet propertySet, String name) {
- this.propertySet = propertySet;
- this.name = name;
- }
-
- @Override
- public ValueProvider<Map<String, String>, String> getGetter() {
- return map -> map.get(name);
- }
-
- @Override
- public Optional<Setter<Map<String, String>, String>> getSetter() {
- return Optional.of((map, value) -> {
- if (value == null) {
- map.remove(name);
- } else {
- map.put(name, value);
- }
- });
- }
-
- @Override
- public Class<String> getType() {
- return String.class;
- }
-
- public Class<?> getPropertyHolderType(){
- return Map.class;
- }
-
- @Override
- public String getName() {
- return name;
- }
-
- @Override
- public PropertySet<Map<String, String>> getPropertySet() {
- return propertySet;
- }
-
- @Override
- public String getCaption() {
- return name.toUpperCase(Locale.ENGLISH);
- }
-
- }
-
- public static class MapPropertySet
- implements PropertySet<Map<String, String>> {
- @Override
- public Stream<PropertyDefinition<Map<String, String>, ?>> getProperties() {
- return Stream.of("one", "two", "three").map(this::createProperty);
- }
-
- @Override
- public Optional<PropertyDefinition<Map<String, String>, ?>> getProperty(
- String name) {
- return Optional.of(createProperty(name));
- }
-
- private PropertyDefinition<Map<String, String>, ?> createProperty(
- String name) {
- return new MapPropertyDefinition(this, name);
- }
- }
-
- public static class InstanceFields {
- private TextField one;
- private TextField another;
- }
-
- @Test
- public void testBindByString() {
- TextField field = new TextField();
- Map<String, String> map = new HashMap<>();
- Binder<Map<String, String>> binder = Binder
- .withPropertySet(new MapPropertySet());
-
- binder.bind(field, "key");
- binder.setBean(map);
-
- field.setValue("value");
- Assert.assertEquals(
- "Field value should propagate to the corresponding key in the map",
- "value", map.get("key"));
- }
-
- @Test
- public void testBindInstanceFields() {
- Map<String, String> map = new HashMap<>();
- Binder<Map<String, String>> binder = Binder
- .withPropertySet(new MapPropertySet());
- InstanceFields instanceFields = new InstanceFields();
-
- binder.bindInstanceFields(instanceFields);
-
- Assert.assertNotNull(
- "Field corresponding to supported property name should be bound",
- instanceFields.one);
- Assert.assertNull(
- "Field corresponding to unsupported property name should be ignored",
- instanceFields.another);
-
- binder.setBean(map);
-
- instanceFields.one.setValue("value");
- Assert.assertEquals(
- "Field value should propagate to the corresponding key in the map",
- "value", map.get("one"));
- }
- }
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