CopyIfEmptyOrConform.java
- /*
- * *************************************************************************************************************************************************************
- *
- * SteelBlue: DCI User Interfaces
- * http://tidalwave.it/projects/steelblue
- *
- * Copyright (C) 2015 - 2025 by Tidalwave s.a.s. (http://tidalwave.it)
- *
- * *************************************************************************************************************************************************************
- *
- * 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.
- *
- * *************************************************************************************************************************************************************
- *
- * git clone https://bitbucket.org/tidalwave/steelblue-src
- * git clone https://github.com/tidalwave-it/steelblue-src
- *
- * *************************************************************************************************************************************************************
- */
- package it.tidalwave.ui.core.function;
- import jakarta.annotation.Nonnull;
- import it.tidalwave.ui.core.ChangingSource;
- /***************************************************************************************************************************************************************
- *
- * @since 2.0-ALPHA-1
- * @author Fabrizio Giudici
- *
- **************************************************************************************************************************************************************/
- public class CopyIfEmptyOrConform extends WeakCopyFunctionSupport<String>
- {
- @Nonnull
- public static CopyIfEmptyOrConform copyIfEmptyOrConform (@Nonnull final ChangingSource<String> source)
- {
- return new CopyIfEmptyOrConform(source);
- }
- private CopyIfEmptyOrConform (@Nonnull final ChangingSource<String> sourceProperty)
- {
- super(sourceProperty);
- }
- @Override
- protected boolean shouldChange (@Nonnull final String oldValue, @Nonnull final String newValue)
- {
- return oldValue.equals(targetValue) || targetValue.isEmpty();
- }
- }