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.applib.services.tablecol;
  
  /**
   * Provides the ability to suppress columns in tables.
   *
   * <p>
   *     Only one API is used, applying to both parented- and standalone tables.
   * </p>
   *
   * <p>
   *     There can be multiple implementations of this service registered,
   *     ordered as per the Spring
   *     {@link org.springframework.core.annotation.Order} annotation (or equivalent).
   *     All implementations are consulted.
   * </p>
   *
   * @since 1.x {@index}
   */
  public interface TableColumnVisibilityService {
  
      /**
       * For the specified collectionType, whether the given memberId is visible
       *
       * @param collectionType - the type of the elements of the collection (rows of the table)
       * @param memberId - a propertyId or possibly actionId of the collectionType
       *
       * @return true if visible, false otherwise.
       */
      boolean hides(
              final Class<?> collectionType,
              final String memberId);
  }
  