content: /*
   *  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.causeway.testdomain.interact;
  
  import java.util.concurrent.atomic.LongAdder;
  
  import org.apache.causeway.commons.binding.Bindable;
  import org.apache.causeway.commons.internal.binding._Bindables;
  import org.apache.causeway.core.metamodel.interactions.managed.ManagedValue;
  
  import lombok.Getter;
  
  abstract class HasValueValidation {
  
      protected final Bindable<String> validationMessage = _Bindables.empty();
      @Getter private final LongAdder validationUpdateEventCount = new LongAdder();
      
      public void bind(ManagedValue paramModel) {
          validationMessage.bind(paramModel.getValidationMessage());
          validationMessage.addListener((e,o,n)->{
              validationUpdateEventCount.increment();
          });
      }
  
      public String getValidationMessage() {
          return validationMessage.getValue(); 
      }
      
  }
  