code: /**
   * This file is part of Eclipse Steady.
   *
   * 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.
   *
   * SPDX-License-Identifier: Apache-2.0
   * SPDX-FileCopyrightText: Copyright (c) 2018-2020 SAP SE or an SAP affiliate company and Eclipse Steady contributors
   */
  package org.eclipse.steady.backend.model;
  
  /**
   * Type of change of a given {@link ConstructId} as part of a bug fix.
   * ADD means that a certain construct, e.g., Java method, has been added, MOD that
   * it's body has been modified, and DEL that it has been deleted.
   *
   * An identical copy exists in vulas-core, package com.sap.psr.vulas.
   */
  public enum ConstructChangeType {
    ADD((byte) 10),
    MOD((byte) 20),
    DEL((byte) 30);
    private byte value;
  
    private ConstructChangeType(byte _value) {
      this.value = _value;
    }
    /**
     * <p>toString.</p>
     *
     * @return a {@link java.lang.String} object.
     */
    public String toString() {
      if (this.value == 10) return "ADD";
      else if (this.value == 20) return "MOD";
      else if (this.value == 30) return "DEL";
      else
        throw new IllegalArgumentException(
            "[" + this.value + "] is not a valid contruct change type");
    }
  }
  