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'rapiddweller Common' is an open source Java library forked from Databene Commons by Volker Bergmann. It provides extensions to the Java core library by utility classes, abstract concepts and concrete implementations.

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/*
 * Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
 * All rights reserved.
 *
 * 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.rapiddweller.common.condition;

import com.rapiddweller.common.Condition;
import com.rapiddweller.common.NullSafeComparator;

/**
 * Condition that requires to be the checked argument to be equal to a prototype.
 * Created: 16.06.2007 12:46:03
 *
 * @param  the type of argument to evaluate
 * @author Volker Bergmann
 */
public class EqualsCondition implements Condition {

  private final E reference;

  /**
   * Instantiates a new Equals condition.
   *
   * @param reference the reference
   */
  public EqualsCondition(E reference) {
    this.reference = reference;
  }

  @Override
  public boolean evaluate(E argument) {
    return NullSafeComparator.equals(argument, reference);
  }

}