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我們正在嘗試使用Dynamo db開始工作,並且我正在爲映射問題而頭痛。DynamoDB在地圖中存儲/映射覆雜對象
我有一個模型匹配和matchPlayer。
Match有一個包含matchPlayer對象的map屬性。
我無法使dynamodb正確映射此屬性。 我試圖JSON的Marshaller但只是導致爲錯誤
在值預期Š{L:{player2 = {M:(更多JSON)
是否有用於映射任何很好的例子或教程/編組一個映射與複雜的對象與dynamodb一起工作?我找到了簡單複雜對象的教程,但沒有使用對象圖。
我很高興任何幫助!
@DynamoDBTable(tableName="Matches")
public class Match {
private String matchId;
private Boolean active;
private int currentRound;
private Boolean finished;
private Map<String, MatchPlayers> players;
@DynamoDBHashKey(attributeName = "matchId")
public String getMatchId() {
return matchId;
}
public void setMatchId(String matchId) {
this.matchId = matchId;
}
@DynamoDBIndexRangeKey(attributeName = "active")
public Boolean getActive() {
return active;
}
public void setActive(Boolean active) {
this.active = active;
}
@DynamoDBIndexRangeKey(attributeName = "currentRound")
public int getCurrentRound() {
return currentRound;
}
public void setCurrentRound(int currentRound) {
this.currentRound = currentRound;
}
@DynamoDBIndexRangeKey(attributeName = "finished")
public Boolean getFinished() {
return finished;
}
public void setFinished(Boolean finished) {
this.finished = finished;
}
@DynamoDBMarshalling(marshallerClass = MatchPlayersMarshaller.class)
@DynamoDBIndexRangeKey(attributeName = "players")
public Map<String, MatchPlayers> getPlayers() {
return players;
}
public void setPlayers(Map<String, MatchPlayers> players) {
this.players = players;
}
}
這就是我所做的感謝 –