| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.metamodel.convert; |
| |
| import org.apache.metamodel.util.BooleanComparator; |
| |
| /** |
| * A {@link TypeConverter} that converts String values (on the physical layer) |
| * to interpreted Booleans. |
| */ |
| public class StringToBooleanConverter implements TypeConverter<String, Boolean> { |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public String toPhysicalValue(Boolean virtualValue) { |
| if (virtualValue == null) { |
| return null; |
| } |
| return virtualValue.toString(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Boolean toVirtualValue(String physicalValue) { |
| if (physicalValue == null || physicalValue.length() == 0) { |
| return null; |
| } |
| return BooleanComparator.parseBoolean(physicalValue); |
| } |
| |
| } |