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 static com.alibaba.graphscope.utils.CppClassName.GRAPE_VERTEX;
  
  import com.alibaba.fastffi.CXXHead;
  import com.alibaba.fastffi.CXXOperator;
  import com.alibaba.fastffi.CXXReference;
  import com.alibaba.fastffi.CXXValue;
  import com.alibaba.fastffi.FFIConst;
  import com.alibaba.fastffi.FFIGen;
  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.VERTEX_DATA_COLUMN)
  public interface VertexDataColumn<DATA_T> extends FFIPointer {
      @CXXOperator(value = "[]")
      @CXXValue
      DATA_T get(@FFIConst @CXXReference @FFITypeAlias(GRAPE_VERTEX + "<uint64_t>") Vertex<Long> nbr);
  }
  