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/*
 * Copyright Terracotta, Inc.
 *
 * 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.
 */

package org.ehcache.impl.internal.events;

import org.ehcache.ValueSupplier;
import org.ehcache.core.events.StoreEventDispatcher;
import org.ehcache.core.events.StoreEventSink;
import org.ehcache.core.spi.store.events.StoreEventFilter;
import org.ehcache.core.spi.store.events.StoreEventListener;

/**
 * NullStoreEventDispatcher
 */
public class NullStoreEventDispatcher implements StoreEventDispatcher {

  public static  StoreEventDispatcher nullStoreEventDispatcher() {
    return new NullStoreEventDispatcher();
  }

  private final StoreEventSink storeEventSink = new StoreEventSink() {
    @Override
    public void evicted(K key, ValueSupplier value) {
      // Do nothing
    }

    @Override
    public void expired(K key, ValueSupplier value) {
      // Do nothing
    }

    @Override
    public void created(K key, V value) {
      // Do nothing
    }

    @Override
    public void updated(K key, ValueSupplier previousValue, V newValue) {
      // Do nothing
    }

    @Override
    public void removed(K key, ValueSupplier removed) {
      // Do nothing
    }
  };

  @Override
  public StoreEventSink eventSink() {
    return storeEventSink;
  }

  @Override
  public void releaseEventSink(StoreEventSink eventSink) {
    // Do nothing
  }

  @Override
  public void releaseEventSinkAfterFailure(StoreEventSink eventSink, Throwable throwable) {
    // Do nothing
  }

  @Override
  public void reset(StoreEventSink eventSink) {
    // Do nothing
  }

  @Override
  public void addEventListener(StoreEventListener eventListener) {
    // Do nothing
  }

  @Override
  public void removeEventListener(StoreEventListener eventListener) {
    // Do nothing
  }

  @Override
  public void addEventFilter(StoreEventFilter eventFilter) {
    // Do nothing
  }

  @Override
  public void setEventOrdering(boolean ordering) {
    // Do nothing
  }

  @Override
  public boolean isEventOrdering() {
    return false;
  }
}