具有多層的Java地圖

Question

我想將下面的數據轉換成某種形式的Java結構。 這些數據代表了一場網球比賽，喬在6-3,6-4擊敗肯，而莎莉以6-4,2-6,6-1,擊敗露西。 據我所知，我應該可以使用正常的地圖，像這樣的東西Map1<Key1, Map2<Key2, Map3<Key3, Value>>> 什麼讓我失望的是，我不會去每一次的最後一層（GameResult）。查看FixtureResult和MatchResult的變量作爲示例。此外，每隔的MatchResult將有多個GameResult套，所以我怎麼給從MatchResult的（父）的角度這些GameResult對象唯一鍵？

<FixtureResult> 
    <Id>1</Id> 
    <FixtureId>1</FixtureId> 
    <DateSubmitted>07-01-2017</DateSubmitted> 

    <MatchResult> 
     <Id>1</Id> 
     <WinnerName>Joe</WinnerName> 
     <LoserName>Ken</LoserName> 

     <GameResult> 
      <Id>1</Id> 
      <WinnerPoints>6</WinnerPoints> 
      <LoserPoints>3</LoserPoints>  
      <Ordinal>1</Ordinal> 
     </GameResult> 

     <GameResult> 
      <Id>2</Id> 
      <WinnerPoints>6</WinnerPoints> 
      <LoserPoints>4</LoserPoints>  
      <Ordinal>2</Ordinal> 
     </GameResult> 

    </MatchResult> 

    <MatchResult> 
     <Id>2</Id> 
     <WinnerName>Sally</WinnerName> 
     <LoserName>Lucy</LoserName> 

     <GameResult> 
      <Id>3</Id> 
      <WinnerPoints>6</WinnerPoints> 
      <LoserPoints>4</LoserPoints>  
      <Ordinal>1</Ordinal> 
     </GameResult> 

     <GameResult> 
      <Id>4</Id> 
      <WinnerPoints>2</WinnerPoints> 
      <LoserPoints>6</LoserPoints>  
      <Ordinal>2</Ordinal> 
     </GameResult> 

     <GameResult> 
      <Id>5</Id> 
      <WinnerPoints>6</WinnerPoints> 
      <LoserPoints>1</LoserPoints>  
      <Ordinal>3</Ordinal> 
     </GameResult> 

    </MatchResult> 
</FixtureResult> 

Answer 1

爲什麼不使用您定義的結構？

class FixtureResult { 
    Integer id; 
    Integer FixtureId; 
    Date dateSubmitted; 
    List<MatchResult> matchResults 
} 
class MatchResult { 
    Integer id; 
    String winnerName; 
    String loserName; 
    List<GameResult> gameResults 
} 
class GameResult { 
    Integer id; 
    Integer winnerPoints; 
    Integer loserPoints; 
    Integer ordinal; 
}