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Module containing all AET core jobs implementations: collectors, comparators, data filters and modifiers

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/**
 * AET
 *
 * Copyright (C) 2013 Cognifide Limited
 *
 * 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 com.cognifide.aet.job.common;

import com.google.common.base.Predicate;
import javax.annotation.Nullable;

public interface Excludable {

  boolean isExcluded();

  void exclude();

  class ExcludedPredicate implements Predicate {

    @Override
    public boolean apply(@Nullable Excludable input) {
      boolean result = false;
      if (input != null) {
        result = input.isExcluded();
      }
      return result;
    }
  }

  class NonExcludedPredicate implements Predicate {

    @Override
    public boolean apply(@Nullable Excludable input) {
      boolean result = false;
      if (input != null) {
        result = !input.isExcluded();
      }
      return result;
    }
  }
}