Java tutorial
/** * Copyright 2013-2018 the original author or authors from the Jeddict project (https://jeddict.github.io/). * * 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 io.github.jeddict.jaxb.spec.validator; import org.apache.commons.lang.StringUtils; import io.github.jeddict.jaxb.spec.JaxbMetadata; import io.github.jeddict.jpa.spec.validator.MarshalValidator; public class JaxbMetadataValidator extends MarshalValidator<JaxbMetadata> { @Override public JaxbMetadata marshal(JaxbMetadata column) throws Exception { if (column != null && isEmpty(column)) { return null; } return column; } public static boolean isEmpty(JaxbMetadata jaxbMetadata) { return StringUtils.isBlank(jaxbMetadata.getName()) && StringUtils.isBlank(jaxbMetadata.getNamespace()) && StringUtils.isBlank(jaxbMetadata.getDefaultValue()) && jaxbMetadata.getNillable() && jaxbMetadata.getRequired(); } }