Initial commit of PostgresKit, our new Postgres framework as a start towards adding PostgreSQL support to Sequel Pro.

Note, that the framerwork is by no means feature complete and in it's current state has quite a few limitations:

- No support for Postgres' asynchronous query API
- Only supports the very basic data types (char/text and numerics)
- No support (outide of libpq) for re-establishing dropped connections

Current feature support includes:

- Basic connection handling
- Query execution
- Prepared statement execution
- Encoding support similar to SPMySQL's

1 files changed, 84 insertions, 0 deletions

diff --git a/Frameworks/PostgresKit/Source/FLXPostgresTypeHandlerProtocol.h b/Frameworks/PostgresKit/Source/FLXPostgresTypeHandlerProtocol.h
new file mode 100644
index 00000000..49261e60
--- /dev/null
+++ b/Frameworks/PostgresKit/Source/FLXPostgresTypeHandlerProtocol.h
@@ -0,0 +1,84 @@
+//
+//  $Id$
+//
+//  FLXPostgresTypeHandlerProtocol.h
+//  PostgresKit
+//
+//  Copyright (c) 2008-2009 David Thorpe, djt@mutablelogic.com
+//
+//  Forked by the Sequel Pro Team on July 22, 2012.
+// 
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not 
+//  use this file except in compliance with the License. You may obtain a copy of 
+//  the License at
+// 
+//  http://www.apache.org/licenses/LICENSE-2.0
+// 
+//  Unless required by applicable law or agreed to in writing, software 
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the 
+//  License for the specific language governing permissions and limitations under
+//  the License.
+
+#import "FLXPostgresTypes.h"
+
+@class FLXPostgresConnection;
+
+/**
+ * @protocol FLXPostgresTypeHandlerProtocol
+ */
+@protocol FLXPostgresTypeHandlerProtocol
+
+/**
+ * The remote type values handled by this class (terminated by 0).
+ *
+ * @return The remote types as an array of FLXPostgresOid's.
+ */
+- (FLXPostgresOid *)remoteTypes;
+
+/**
+ * What is the native class this class handles.
+ *
+ * @return The native class.
+ */
+- (Class)nativeClass;
+
+/**
+ * Any aliases that the native class is known by.
+ *
+ * @return An of aliases as strings or nil if none.
+ */
+- (NSArray *)classAliases;
+
+/**
+ * Return a transmittable data representation from the supplied object,
+ * and set the remote type for the data.
+ *
+ * @param object The object to produce the data for.
+ * @param type   The type of object we're supplying.
+ *
+ * @return The data represenation as an NSData instance.
+ */
+- (NSData *)remoteDataFromObject:(id)object type:(FLXPostgresOid *)type;
+
+/**
+ * Convert the supplied remote data into an object.
+ *
+ * @param bytes  The remote data to convert.
+ * @param length The length of the data.
+ * @param type   The type of data.
+ *
+ * @return An object represenation of the data.
+ */
+- (id)objectFromRemoteData:(const void *)bytes length:(NSUInteger)length type:(FLXPostgresOid)type;
+
+/**
+ * Return a quoted string from an object.
+ *
+ * @param object The object to quote.
+ *
+ * @return A string represenation of the object quoted.
+ */
+- (NSString *)quotedStringFromObject:(id)object;
+
+@end