Package org.apache.graphar.edges

Interface Edge

  • All Superinterfaces:
    com.alibaba.fastffi.CXXPointer, com.alibaba.fastffi.FFIPointer, com.alibaba.fastffi.FFIType
    public interface Edge
extends com.alibaba.fastffi.CXXPointer
    Edge contains information of certain edge.

    • Nested Class Summary

      Nested Classes 
      Modifier and Type Interface Description
      static interface  Edge.Factory  

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      @com.alibaba.fastffi.FFITypeAlias("graphar::IdType") long destination()
      Get destination id of the edge.
      <T> Result<T> property​(StdString property, T tObject)
      Get the value for a property of the current vertex.
      @com.alibaba.fastffi.FFITypeAlias("graphar::IdType") long source()
      Get source id of the edge.

      • Methods inherited from interface com.alibaba.fastffi.CXXPointer

        delete

      • Methods inherited from interface com.alibaba.fastffi.FFIPointer

        getAddress

    • Method Detail

      • source

        @com.alibaba.fastffi.FFITypeAlias("graphar::IdType") long source()
        Get source id of the edge.
        Returns:
        The id of the source vertex.

      • destination

        @com.alibaba.fastffi.FFITypeAlias("graphar::IdType") long destination()
        Get destination id of the edge.
        Returns:
        The id of the destination vertex.

      • property

        <T> Result<T> property​(StdString property,
                       T tObject)
        Get the value for a property of the current vertex.
        Parameters:
        property - StdString that describe property.
        tObject - An object that instance of the return type. Supporting types:StdString, Long

        e.g.
        StdString name = StdString.create("name");
        StdString nameProperty = vertexIter.property(name, name);

        If you don't want to create an object, cast `Xxx` class to `XxxGen` and call this method with `(ReturnType) null`.
        e.g.
        StdString nameProperty = ((VertexIterGen)vertexIter).property(StdString.create("name"), (StdString) null);

        Returns:
        Result: The property value or error.