content: package act.controller.meta;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  import org.osgl.util.E;
  import org.osgl.util.S;
  
  public abstract class ParamAnnoInfoTraitBase implements ParamAnnoInfoTrait {
      private int index;
      protected ParamAnnoInfoTraitBase(int index) {
          E.illegalArgumentIf(index < 0);
          this.index = index;
      }
  
      @Override
      public boolean compatibleWith(ParamAnnoInfoTrait otherParamAnnotation) {
          return otherParamAnnotation instanceof HarmonyParamAnnotationTraitBase;
      }
  
      @Override
      public String compatibilityErrorMessage(ParamAnnoInfoTrait otherParamAnnotation) {
          return S.fmt("Param annotations cannot co-exists: %s vs %s", getClass(), otherParamAnnotation.getClass());
      }
  
      @Override
      public int index() {
          return index;
      }
  }
  