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.neurons;
  
  import network.aika.Model;
  
  /**
   *
   * @author Lukas Molzberger
   */
  public class NeuronReference {
  
      private final long id;
      private final RefType refType;
  
      private Neuron neuron;
  
  
      public NeuronReference(long neuronId, RefType refType) {
          this.id = neuronId;
          this.refType = refType;
      }
  
      public NeuronReference(Neuron n, RefType refType) {
          this.id = n.getId();
          this.refType = refType;
          this.neuron = n;
      }
  
      public long getId() {
          return id;
      }
  
      public Neuron getRawNeuron() {
          return neuron;
      }
  
      public synchronized <N extends Neuron> N getNeuron(Model m) {
          if (neuron == null) {
              neuron = m.getNeuron(id);
              neuron.increaseRefCount(refType);
          }
  
          return (N) neuron;
      }
  
      public void suspendNeuron() {
          assert neuron != null;
  
          neuron.decreaseRefCount(refType);
          neuron = null;
      }
  
      public String toString() {
          return "p(" + (neuron != null ? neuron : id + ":" + "SUSPENDED") + ")";
      }
  
      public String toKeyString() {
          return "p(" + (neuron != null ? neuron.toKeyString() : id + ":" + "SUSPENDED") + ")";
      }
  }
  