UsernameConverter.java

/*
 * Copyright (C) 2013 Red Hat, Inc. and/or its affiliates.
 *
 * 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.jboss.errai.demo.grocery.client.local.convert;

import org.jboss.errai.databinding.client.api.Converter;
import org.jboss.errai.demo.grocery.client.shared.User;

public class UsernameConverter implements Converter<User, String> {

    @Override
    public User toModelValue(String widgetValue) {
        throw new UnsupportedOperationException("This converter only supports Model->Widget mappings");
    }

    @Override
    public String toWidgetValue(User modelValue) {
        return modelValue == null ? "" : modelValue.getName();
    }

    @Override
    public Class<User> getModelType() {
      return User.class;
    }

    @Override
    public Class<String> getComponentType() {
      return String.class;
    }

}