content: /*
   * Copyright 2021 Alibaba Group Holding Limited.
   *
   * 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.
   */
  
  package com.alibaba.graphscope.ds;
  
  import com.alibaba.fastffi.CXXHead;
  import com.alibaba.fastffi.CXXOperator;
  import com.alibaba.fastffi.CXXPointerRangeElement;
  import com.alibaba.fastffi.CXXReference;
  import com.alibaba.fastffi.CXXValue;
  import com.alibaba.fastffi.FFIByteString;
  import com.alibaba.fastffi.FFIFactory;
  import com.alibaba.fastffi.FFIGen;
  import com.alibaba.fastffi.FFINameAlias;
  import com.alibaba.fastffi.FFIPointer;
  import com.alibaba.fastffi.FFITypeAlias;
  import com.alibaba.graphscope.utils.CppClassName;
  import com.alibaba.graphscope.utils.CppHeaderName;
  
  @FFIGen
  @CXXHead(CppHeaderName.CORE_JAVA_TYPE_ALIAS_H)
  @FFITypeAlias(CppClassName.PROPERTY_NBR)
  public interface PropertyNbr<VID_T> extends FFIPointer, CXXPointerRangeElement<PropertyNbr<VID_T>> {
      @FFINameAlias("neighbor")
      @CXXValue
      Vertex<VID_T> neighbor();
  
      @FFINameAlias("get_double")
      double getDouble(int propertyId);
  
      @FFINameAlias("get_int")
      int getInt(int propertyId);
  
      @FFINameAlias("get_str")
      @CXXValue
      FFIByteString getString(int propertyId);
  
      @CXXOperator("++")
      @CXXReference
      PropertyNbr<VID_T> inc();
  
      @CXXOperator("==")
      boolean eq(@CXXReference PropertyNbr<VID_T> rhs);
  
      @CXXOperator("--")
      @CXXReference
      PropertyNbr<VID_T> dec();
  
      @FFIFactory
      interface Factory<VID_T> {
          PropertyNbr<VID_T> create();
      }
  }
  