From f2be63ec19e613f0f78cfc7dfecd834511bdb936 Mon Sep 17 00:00:00 2001
From: Michael Bayne <mdb@samskivert.com>
Date: Fri, 2 May 2014 20:14:43 +0000
Subject: [PATCH] Choke usefully if we can't obtain last inserted id.

---
 .../com/samskivert/depot/impl/IdentityValueGenerator.java   | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/main/java/com/samskivert/depot/impl/IdentityValueGenerator.java b/src/main/java/com/samskivert/depot/impl/IdentityValueGenerator.java
index cab2523..3e4b85e 100644
--- a/src/main/java/com/samskivert/depot/impl/IdentityValueGenerator.java
+++ b/src/main/java/com/samskivert/depot/impl/IdentityValueGenerator.java
@@ -38,7 +38,11 @@ public class IdentityValueGenerator extends ValueGenerator
     public int nextGeneratedValue (Connection conn, DatabaseLiaison liaison, Statement stmt)
         throws SQLException
     {
-        return liaison.lastInsertedId(conn, stmt, _dm.getTableName(), _fm.getColumnName());
+        Integer id = liaison.lastInsertedId(conn, stmt, _dm.getTableName(), _fm.getColumnName());
+        if (id == null) throw new SQLException(
+            "Unable to obtain last inserted id [table=" + _dm.getTableName() +
+            ", column=" + _fm.getColumnName() + "]");
+        return id;
     }
 
     @Override // from ValueGenerator