com.jain.i18N.definition.PersonDefinitionGrid.java Source code

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Here is the source code for com.jain.i18N.definition.PersonDefinitionGrid.java

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/* 
 * 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.jain.i18N.definition;

import java.util.List;

import javax.inject.Inject;

import com.jain.addon.JNIComponentInit;
import com.jain.addon.event.JNIObserver;
import com.jain.addon.web.bean.JNIProperty;
import com.jain.addon.web.bean.container.JainBeanItemContainer;
import com.jain.addon.web.table.JTable;
import com.jain.i18N.PersonDataHandler;
import com.jain.i18N.domain.Person;
import com.vaadin.data.Container;
import com.vaadin.data.Property.ValueChangeEvent;
import com.vaadin.data.Property.ValueChangeListener;
import com.vaadin.ui.VerticalLayout;

@SuppressWarnings("serial")
public class PersonDefinitionGrid extends VerticalLayout implements ValueChangeListener {
    public static final String PERSON_CREATED_OR_UPDATED = "personCreatedOrUpdated";
    private JTable table;
    private Person selected;

    @Inject
    PersonDataHandler dataHandler;

    @JNIComponentInit
    public void init() {
        table = new JTable(getContainer(), getProperties());
        table.addValueChangeListener(this);
        table.setPageLength(15);
        addComponent(table);
    }

    private Container getContainer() {
        JainBeanItemContainer<Person> container = new JainBeanItemContainer<Person>(Person.class);
        updateContainer(container);
        return container;
    }

    private void updateContainer(JainBeanItemContainer<Person> container) {
        List<Person> result = dataHandler.getPersons();
        if (result != null)
            container.addAll(result);
    }

    private JNIProperty[] getProperties() {
        return PersonProperty.values();
    }

    @SuppressWarnings("unchecked")
    @JNIObserver(PERSON_CREATED_OR_UPDATED)
    public void reload(Person person) {
        JainBeanItemContainer<Person> container = (JainBeanItemContainer<Person>) table.getContainerDataSource();
        container.removeItem(person);
        container.addItem(person);
        dataHandler.removePerson(person);
        dataHandler.addPerson(person);
    }

    public void valueChange(ValueChangeEvent event) {
        selected = (Person) event.getProperty().getValue();
    }

    @SuppressWarnings("unchecked")
    public void delete() {
        JainBeanItemContainer<Person> container = (JainBeanItemContainer<Person>) table.getContainerDataSource();
        container.removeItem(selected);
        dataHandler.removePerson(selected);
    }

    public Person getSelected() {
        return selected;
    }
}