/**
 * 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");
  }
}
