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.column;
  
  import static com.alibaba.graphscope.utils.CppClassName.DOUBLE_COLUMN;
  import static com.alibaba.graphscope.utils.CppClassName.GRAPE_LONG_VERTEX;
  import static com.alibaba.graphscope.utils.CppClassName.GS_VERTEX_ARRAY;
  import static com.alibaba.graphscope.utils.CppHeaderName.ARROW_FRAGMENT_H;
  import static com.alibaba.graphscope.utils.CppHeaderName.ARROW_PROJECTED_FRAGMENT_H;
  import static com.alibaba.graphscope.utils.CppHeaderName.CORE_JAVA_TYPE_ALIAS_H;
  import static com.alibaba.graphscope.utils.CppHeaderName.GRAPE_TYPES_H;
  
  import com.alibaba.fastffi.CXXHead;
  import com.alibaba.fastffi.CXXReference;
  import com.alibaba.fastffi.FFIGen;
  import com.alibaba.fastffi.FFITypeAlias;
  import com.alibaba.graphscope.ds.GSVertexArray;
  import com.alibaba.graphscope.ds.Vertex;
  
  @FFIGen
  @CXXHead(CORE_JAVA_TYPE_ALIAS_H)
  @CXXHead(system = "cstdint")
  @CXXHead(GRAPE_TYPES_H)
  @CXXHead(ARROW_FRAGMENT_H)
  @CXXHead(ARROW_PROJECTED_FRAGMENT_H)
  @FFITypeAlias(DOUBLE_COLUMN)
  public interface DoubleColumn<FRAG_T> extends IColumn {
  
      double at(@CXXReference @FFITypeAlias(GRAPE_LONG_VERTEX) Vertex<Long> vertex);
  
      void set(@CXXReference @FFITypeAlias(GRAPE_LONG_VERTEX) Vertex<Long> vertex, double value);
  
      @CXXReference
      @FFITypeAlias(GS_VERTEX_ARRAY + "<double>")
      GSVertexArray<Double> data();
  }
  