content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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 network.aika.fields.softmax;
  
  import network.aika.type.Obj;
  import network.aika.type.ObjImpl;
  import network.aika.type.TypeRegistry;
  import network.aika.type.relations.Relation;
  
  import static network.aika.fields.softmax.SoftmaxInputType.CORRESPONDING_OUTPUT_LINK;
  import static network.aika.fields.softmax.SoftmaxInputType.INPUT_TO_NORM;
  import static network.aika.fields.softmax.SoftmaxOutputType.CORRESPONDING_INPUT_LINK;
  import static network.aika.fields.softmax.SoftmaxOutputType.OUTPUT_TO_NORM;
  
  /**
   *
   * @author Lukas Molzberger
   */
  public class SoftmaxOutputObj extends ObjImpl {
  
      SoftmaxNormObj normObj;
      Integer bsId;
  
      public SoftmaxOutputObj(SoftmaxOutputType type, Integer bsId) {
          super(type);
          this.bsId = bsId;
      }
  
      @Override
      public Obj followSingleRelation(Relation rel) {
          if(rel == OUTPUT_TO_NORM)
              return getNormObj();
          else if(rel == CORRESPONDING_INPUT_LINK)
              return getCorrespondingInputLink();
          else
              throw new RuntimeException("Invalid Relation");
      }
  
      public SoftmaxNormObj getNormObj() {
          return normObj;
      }
  
      public static void linkObjects(SoftmaxNormObj normObj, SoftmaxOutputObj[] outputObjs) {
          for(int i = 0; i < outputObjs.length; i++) {
              SoftmaxOutputObj outputObj = outputObjs[i];
              normObj.outputs.add(outputObj);
              outputObj.normObj = normObj;
          }
      }
  
      public SoftmaxInputObj getCorrespondingInputLink() {
          if(normObj == null)
              return null;
  
          return normObj.getInput(bsId);
      }
  }
  