3 files changed, 18 insertions, 29 deletions
diff --git a/lib/sqlalchemy/databases/mssql.py b/lib/sqlalchemy/databases/mssql.py
index 013e78c6a..a2d4ac36e 100644
--- a/lib/sqlalchemy/databases/mssql.py
+++ b/lib/sqlalchemy/databases/mssql.py
@@ -572,10 +572,8 @@ class MSSQLDialect_pymssql(MSSQLDialect):
             del keys['port']
         return [[], keys]
 
-    def get_disconnect_checker(self):
-        def disconnect_checker(e):
-            return isinstance(e, self.dbapi.DatabaseError) and "Error 10054" in str(e)
-        return disconnect_checker
+    def is_disconnect(self, e):
+        return isinstance(e, self.dbapi.DatabaseError) and "Error 10054" in str(e)
 
 
 ##    This code is leftover from the initial implementation, for reference
@@ -636,10 +634,8 @@ class MSSQLDialect_pyodbc(MSSQLDialect):
             connectors.append ("TrustedConnection=Yes")
         return [[";".join (connectors)], {}]
 
-    def get_disconnect_checker(self):
-        def disconnect_checker(e):
-            return isinstance(e, self.dbapi.Error) and '[08S01]' in e.args[1]
-        return disconnect_checker
+    def is_disconnect(self, e):
+        return isinstance(e, self.dbapi.Error) and '[08S01]' in e.args[1]
 
 
 class MSSQLDialect_adodbapi(MSSQLDialect):
@@ -671,10 +667,8 @@ class MSSQLDialect_adodbapi(MSSQLDialect):
             connectors.append("Integrated Security=SSPI")
         return [[";".join (connectors)], {}]
 
-    def get_disconnect_checker(self):
-        def disconnect_checker(e):
-            return isinstance(e, self.dbapi.adodbapi.DatabaseError) and "'connection failure'" in str(e)
-        return disconnect_checker
+    def is_disconnect(self, e):
+        return isinstance(e, self.dbapi.adodbapi.DatabaseError) and "'connection failure'" in str(e)
 
 dialect_mapping = {
     'pymssql':  MSSQLDialect_pymssql,
diff --git a/lib/sqlalchemy/databases/mysql.py b/lib/sqlalchemy/databases/mysql.py
index 7ea98e92f..03297cd68 100644
--- a/lib/sqlalchemy/databases/mysql.py
+++ b/lib/sqlalchemy/databases/mysql.py
@@ -342,11 +342,8 @@ class MySQLDialect(ansisql.ANSIDialect):
         except:
             pass
 
-    def get_disconnect_checker(self):
-        def disconnect_checker(e):
-            return isinstance(e, self.dbapi.OperationalError) and e.args[0] in (2006, 2014)
-        return disconnect_checker            
-
+    def is_disconnect(self, e):
+        return isinstance(e, self.dbapi.OperationalError) and e.args[0] in (2006, 2014)
 
     def get_default_schema_name(self):
         if not hasattr(self, '_default_schema_name'):
diff --git a/lib/sqlalchemy/databases/postgres.py b/lib/sqlalchemy/databases/postgres.py
index a26ef76b6..6facde936 100644
--- a/lib/sqlalchemy/databases/postgres.py
+++ b/lib/sqlalchemy/databases/postgres.py
@@ -338,18 +338,16 @@ class PGDialect(ansisql.ANSIDialect):
         cursor = connection.execute('''SELECT relname FROM pg_class WHERE relkind = 'S' AND relnamespace IN ( SELECT oid FROM pg_namespace WHERE nspname NOT LIKE 'pg_%%' AND nspname != 'information_schema' AND relname = %(seqname)s);''', {'seqname': sequence_name})
         return bool(not not cursor.rowcount)
 
-    def get_disconnect_checker(self):
-        def disconnect_checker(e):
-            if isinstance(e, self.dbapi.OperationalError):
-                return 'closed the connection' in str(e) or 'connection not open' in str(e)
-            elif isinstance(e, self.dbapi.InterfaceError):
-                return 'connection already closed' in str(e)
-            elif isinstance(e, self.dbapi.ProgrammingError):
-                # yes, it really says "losed", not "closed"
-                return "losed the connection unexpectedly" in str(e)
-            else:
-                return False
-        return disconnect_checker
+    def is_disconnect(self, e):
+        if isinstance(e, self.dbapi.OperationalError):
+            return 'closed the connection' in str(e) or 'connection not open' in str(e)
+        elif isinstance(e, self.dbapi.InterfaceError):
+            return 'connection already closed' in str(e)
+        elif isinstance(e, self.dbapi.ProgrammingError):
+            # yes, it really says "losed", not "closed"
+            return "losed the connection unexpectedly" in str(e)
+        else:
+            return False
 
     def reflecttable(self, connection, table):
         if self.version == 2: