io.mapsmessaging.storage.tasks.KeepOnlyTask Maven / Gradle / Ivy

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A generic data store keyed by a Long

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/*
 *   Copyright [2020 - 2022]   [Matthew Buckton]
 *
 *    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 io.mapsmessaging.storage.tasks;

import io.mapsmessaging.storage.Storable;
import io.mapsmessaging.storage.Storage;
import java.util.Collection;
import org.jetbrains.annotations.NotNull;

public class KeepOnlyTask extends BaseTask> {

  private final Collection toKeep;

  public KeepOnlyTask(@NotNull Storage storage, Collection toKeep, Completion> completion) {
    super(storage, completion);
    this.toKeep = toKeep;
  }

  @Override
  public Collection execute() throws Exception {
    return storage.keepOnly(toKeep);
  }
}