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.core.runtime.flushmgmt;
  
  import lombok.experimental.UtilityClass;
  
  @UtilityClass
  public class FlushMgmt {
  
      private static final ThreadLocal<Boolean> autoFlushSuppressed = ThreadLocal.withInitial(() -> false);
      public static boolean isAutoFlushSuppressed() {
          return autoFlushSuppressed.get();
      }
      public static void suppressAutoFlush(final Runnable runnable) {
          final boolean onEntry = autoFlushSuppressed.get();
          try {
              autoFlushSuppressed.set(true);
              runnable.run();
          } finally {
              if(onEntry) {
                  // perhaps superfluous but just in case
                  autoFlushSuppressed.set(true);
              } else {
                  autoFlushSuppressed.remove();
              }
          }
      }
  
  }
  