java 到 scala 的转换 - r 树的通用类型丢失了？

Question

我想使用https://github.com/davidmoten/rtree创建

RTree<String, Point> tree = RTree.create();
tree = tree.add("someStuff", Geometries.point(10,20));

在 scala 中我尝试过

val tree = RTree.create // note no generics here. Unsure how to add them
tree.add("someStuff", Geometries.point(10,20))

这会导致尝试编译 Scala 代码时无法解析符号“add”。

Answer 1

这应该可以修复它:

val tree: RTree[String, Point] = RTree.create[String, Point]()
tree.add("someStuff", Geometries.point(10,20))