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Improved performance of UserInfoTable#getSavedUUIDs(UUID)

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This commit is contained in:
Rsl1122 2018-05-25 11:18:56 +03:00
parent 4a2f18d9ee
commit 04f426aca1
1 changed files with 28 additions and 2 deletions
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30
Plan/src/main/java/com/djrapitops/plan/system/database/databases/sql/tables/UserInfoTable.java
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@ -361,8 +361,34 @@ public class UserInfoTable extends UserIDTable {
}
}
// TODO improve performance of this method.
public Set<UUID> getSavedUUIDs(UUID serverUUID) throws SQLException {
return getSavedUUIDs().get(serverUUID);
String usersIDColumn = usersTable + "." + UsersTable.Col.ID;
String usersUUIDColumn = usersTable + "." + UsersTable.Col.UUID + " as uuid";
String serverIDColumn = serverTable + "." + ServerTable.Col.SERVER_ID;
String serverUUIDColumn = serverTable + "." + ServerTable.Col.SERVER_UUID + " as s_uuid";
String sql = "SELECT " +
usersUUIDColumn + ", " +
serverUUIDColumn +
" FROM " + tableName +
" INNER JOIN " + usersTable + " on " + usersIDColumn + "=" + Col.USER_ID +
" INNER JOIN " + serverTable + " on " + serverIDColumn + "=" + Col.SERVER_ID +
" WHERE s_uuid=?";
return query(new QueryStatement<Set<UUID>>(sql, 50000) {
@Override
public void prepare(PreparedStatement statement) throws SQLException {
statement.setString(1, serverUUID.toString());
}
@Override
public Set<UUID> processResults(ResultSet set) throws SQLException {
Set<UUID> uuids = new HashSet<>();
while (set.next()) {
UUID uuid = UUID.fromString(set.getString("uuid"));
uuids.add(uuid);
}
return uuids;
}
});
}
}