Java tutorial
/* 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.klwork.explorer.ui.form; import org.activiti.engine.form.FormProperty; import org.activiti.engine.impl.form.LongFormType; import com.klwork.explorer.Messages; import com.vaadin.ui.Field; import com.vaadin.ui.TextField; /** * @author Frederik Heremans */ public class LongFormPropertyRenderer extends AbstractFormPropertyRenderer { public LongFormPropertyRenderer() { super(LongFormType.class); } @Override public Field getPropertyField(FormProperty formProperty) { final TextField textField = new TextField(getPropertyLabel(formProperty)); textField.setRequired(formProperty.isRequired()); textField.setEnabled(formProperty.isWritable()); textField.setRequiredError(getMessage(Messages.FORM_FIELD_REQUIRED, getPropertyLabel(formProperty))); if (formProperty.getValue() != null) { textField.setValue(formProperty.getValue()); } // Add validation of numeric value textField.addValidator(new LongValidator("Value must be a long")); textField.setImmediate(true); return textField; } protected boolean isLong(String value) { try { Long.parseLong(value); return true; } catch (NumberFormatException nfe) { return false; } } }