Java tutorial
/* * jPOS Project [http://jpos.org] * Copyright (C) 2000-2018 jPOS Software SRL * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package org.jpos.qi.minigl; import com.vaadin.data.Converter; import com.vaadin.data.Result; import com.vaadin.data.ValueContext; import org.jpos.gl.Journal; import org.jpos.gl.Layer; public class ShortToLayerConverter implements Converter<Layer, Short> { private Journal journal; public ShortToLayerConverter(Journal journal) { super(); this.journal = journal; } @Override public Result<Short> convertToModel(Layer value, ValueContext context) { if (value != null) return Result.ok(value.getId()); return Result.ok(null); } @Override public Layer convertToPresentation(Short value, ValueContext context) { if (value != null) { TransactionsHelper helper = new TransactionsHelper(); return helper.getLayer(value, journal); } return null; } }