From 54afc8490a9418b8290c4b2ff0e03ed9e7da8395 Mon Sep 17 00:00:00 2001 From: Michael Bayne Date: Sat, 18 Apr 2026 17:05:25 -0700 Subject: [PATCH] Tell JDBC to use UTC when converting timestamp. This is apparently the recommended thing to do, but JDBC & SQL handling of TIMESTAMP and java.sql.Timestamp are pretty abysmal. --- .../java/com/samskivert/jdbc/jora/FieldDescriptor.java | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/main/java/com/samskivert/jdbc/jora/FieldDescriptor.java b/src/main/java/com/samskivert/jdbc/jora/FieldDescriptor.java index cbb95d13..e67b3d94 100644 --- a/src/main/java/com/samskivert/jdbc/jora/FieldDescriptor.java +++ b/src/main/java/com/samskivert/jdbc/jora/FieldDescriptor.java @@ -8,6 +8,8 @@ package com.samskivert.jdbc.jora; import java.sql.*; import java.math.*; import java.lang.reflect.*; +import java.util.Calendar; +import java.util.TimeZone; class FieldDescriptor { @@ -99,7 +101,7 @@ class FieldDescriptor pstmt.setTime(column, (java.sql.Time)field.get(obj)); break; case tTimestamp: - pstmt.setTimestamp(column, (java.sql.Timestamp)field.get(obj)); + pstmt.setTimestamp(column, (java.sql.Timestamp)field.get(obj), UTC_CALENDAR); break; case tStream: java.io.InputStream in = (java.io.InputStream)field.get(obj); @@ -325,7 +327,7 @@ class FieldDescriptor field.set(obj, result.getTime(column)); break; case tTimestamp: - field.set(obj, result.getTimestamp(column)); + field.set(obj, result.getTimestamp(column, UTC_CALENDAR)); break; case tStream: field.set(obj, result.getBinaryStream(column)); @@ -417,4 +419,7 @@ class FieldDescriptor Types.VARCHAR, // tAsString Types.LONGVARBINARY // tClosure }; + + /** A UTC calendar used to ensure timezone-correct Timestamp binding and loading. */ + private static final Calendar UTC_CALENDAR = Calendar.getInstance(TimeZone.getTimeZone("UTC")); }