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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.v7.ui;
-
- import java.util.Date;
-
- import com.vaadin.shared.util.SharedUtil;
- import com.vaadin.ui.Component;
- import com.vaadin.v7.data.Container;
- import com.vaadin.v7.data.Item;
- import com.vaadin.v7.data.Property;
-
- /**
- * This class contains a basic implementation for both {@link FormFieldFactory}
- * and {@link TableFieldFactory}. The class is singleton, use {@link #get()}
- * method to get reference to the instance.
- *
- * <p>
- * There are also some static helper methods available for custom built field
- * factories.
- *
- */
- public class DefaultFieldFactory
- implements FormFieldFactory, TableFieldFactory {
-
- private static final DefaultFieldFactory instance = new DefaultFieldFactory();
-
- /**
- * Singleton method to get an instance of DefaultFieldFactory.
- *
- * @return an instance of DefaultFieldFactory
- */
- public static DefaultFieldFactory get() {
- return instance;
- }
-
- protected DefaultFieldFactory() {
- }
-
- @Override
- public Field<?> createField(Item item, Object propertyId,
- Component uiContext) {
- Class<?> type = item.getItemProperty(propertyId).getType();
- Field<?> field = createFieldByPropertyType(type);
- field.setCaption(createCaptionByPropertyId(propertyId));
- return field;
- }
-
- @Override
- public Field createField(Container container, Object itemId,
- Object propertyId, Component uiContext) {
- Property containerProperty = container.getContainerProperty(itemId,
- propertyId);
- Class<?> type = containerProperty.getType();
- Field<?> field = createFieldByPropertyType(type);
- field.setCaption(createCaptionByPropertyId(propertyId));
- return field;
- }
-
- /**
- * If name follows method naming conventions, convert the name to spaced
- * upper case text. For example, convert "firstName" to "First Name"
- *
- * @param propertyId
- * @return the formatted caption string
- */
- public static String createCaptionByPropertyId(Object propertyId) {
- return SharedUtil.propertyIdToHumanFriendly(propertyId);
- }
-
- /**
- * Creates fields based on the property type.
- * <p>
- * The default field type is {@link LegacyTextField}. Other field types
- * generated by this method:
- * <p>
- * <b>Boolean</b>: {@link CheckBox}.<br/>
- * <b>Date</b>: {@link LegacyDateField}(resolution: day).<br/>
- * <b>Item</b>: {@link Form}. <br/>
- * <b>default field type</b>: {@link LegacyTextField}.
- * <p>
- *
- * @param type
- * the type of the property
- * @return the most suitable generic {@link LegacyField} for given type
- */
- public static Field<?> createFieldByPropertyType(Class<?> type) {
- // Null typed properties can not be edited
- if (type == null) {
- return null;
- }
-
- // Item field
- if (com.vaadin.v7.data.Item.class.isAssignableFrom(type)) {
- return new Form();
- }
-
- // Date field
- if (Date.class.isAssignableFrom(type)) {
- final DateField df = new DateField();
- df.setResolution(DateField.RESOLUTION_DAY);
- return df;
- }
-
- // Boolean field
- if (Boolean.class.isAssignableFrom(type)) {
- return new CheckBox();
- }
-
- return new TextField();
- }
-
- }
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