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Extract timezone offset calculation to helper method

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This commit is contained in:
kimminseok
2025-10-26 22:09:47 +09:00
parent 791e19892d
commit 7ee339a754
1 changed files with 9 additions and 27 deletions
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36
bindings/java/src/main/java/tech/turso/jdbc4/JDBC4ResultSet.java
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@@ -838,15 +838,7 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
if (date == null || cal == null) {
return date;
}
final Calendar localCal = Calendar.getInstance();
localCal.setTime(date);
final long offset =
cal.getTimeZone().getOffset(date.getTime())
- localCal.getTimeZone().getOffset(date.getTime());
return new Date(date.getTime() + offset);
return new Date(date.getTime() + calculateTimezoneOffset(date.getTime(), cal));
}
@Override
@@ -862,15 +854,7 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
if (time == null || cal == null) {
return time;
}
final Calendar localCal = Calendar.getInstance();
localCal.setTime(time);
final long offset =
cal.getTimeZone().getOffset(time.getTime())
- localCal.getTimeZone().getOffset(time.getTime());
return new Time(time.getTime() + offset);
return new Time(time.getTime() + calculateTimezoneOffset(time.getTime(), cal));
}
@Override
@@ -886,15 +870,7 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
if (timestamp == null || cal == null) {
return timestamp;
}
final Calendar localCal = Calendar.getInstance();
localCal.setTime(timestamp);
final long offset =
cal.getTimeZone().getOffset(timestamp.getTime())
- localCal.getTimeZone().getOffset(timestamp.getTime());
return new Timestamp(timestamp.getTime() + offset);
return new Timestamp(timestamp.getTime() + calculateTimezoneOffset(timestamp.getTime(), cal));
}
@Override
@@ -1342,6 +1318,12 @@ public final class JDBC4ResultSet implements ResultSet, ResultSetMetaData {
throw new UnsupportedOperationException("not implemented");
}
private long calculateTimezoneOffset(long timeMillis, Calendar targetCal) {
Calendar localCal = Calendar.getInstance();
return targetCal.getTimeZone().getOffset(timeMillis)
- localCal.getTimeZone().getOffset(timeMillis);
}
@FunctionalInterface
public interface ResultSetSupplier<T> {
T get() throws Exception;