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EJDB Native Extension

Adobe Air Native Extension (ANE) for EJDB

About

EJDB for iOS, Mac OS X, and Windows on Adobe AIR. EJDB is a fast MongoDB-like library for document database storage and querying embedded into your application.

Usage

// Open the zoo DB
var db:EJDBDatabase = EJDB.open("zoo", EJDB.DEFAULT_OPEN_MODE | EJDB.JBOTRUNC) as EJDBDatabase;

var parrot1:Object = {
	"name" : "Grenny",
	"type" : "African Grey",
	"male" : true,
	"age" : 1,
	"birthdate" : new Date(),
	"likes" : ["green color", "night", "toys"],
	"extra1" : null
};
var parrot2:Object = {
	"name" : "Bounty",
	"type" : "Cockatoo",
	"male" : false,
	"age" : 15,
	"birthdate" : new Date(),
	"likes" : ["sugar cane"]
};

var oids:Array = db.save("parrots", [parrot1, parrot2]);
trace("Grenny OID: " + parrot1._id);
trace("Bounty OID: " + parrot2._id);

var cursor:EJDBCursor = db.find("parrots",
	{"likes" : "toys"},
	[],
	{"$orderby" : {"name" : 1}}
);

trace("Found " + cursor.length + " parrots");
while (cursor.next()) {
	trace(cursor.field("name") + " likes toys!");
}

cursor.close(); // It IS mandatory to close cursor explicitly to free up resources
db.close(); // Close the database

Considerations

Database files are memory mapped and limited to 2GB on all 32bit platforms. This applies to all supported platforms in the ANE since Adobe only supports 32bit extensions.

Building

The native extension is using ruby's rake for it's build system and therefore requires ruby 1.9.3, this is installed by default on OS X Lion. Additionally, you must have Xcode and the iOS SDK's installed on your system.

To build simply type rake build into your terminal from within the root directory of the native extension. If this is your first time building the build system will generate the file config/build.yml and prompt you to edit the file for your system. The relevant changes are the path to your Adobe Air SDK and what version of the iOS SDK you are using.

After editing your config/build.yml file, simply type rake build again. If all goes well you will see the airejdb.ane file sitting in your bin directory.

Since this is a multiplatform ANE, building is a bit more complicated then usual. If you are running on Mac OS X you will find a file called ejdb-build.sh in the config directory. Before executing the rake script you will want to run this script via sh ejdb-build.sh to generate the Mac and iOS universal binaries of ejdb, as well as download the windows libraries of ejdb.

You will then need to find a way to build the windows MSVC solution found in platforms/windows/AirEJDB.sln, I personally use Visual C++ Express 2010 via Parallels running Windows 7. After compiling the MSVC solution, the rake script will compile the iOS and Mac native libraries, then package all available platforms.

License

airejdb is licensed under a permissive MIT source license. EJDB and Tokyo Cabinet, which this project depends on are licensed under the GNU Lesser General Public License. Fork well my friends.

Copyright (c) 2013 Justin Walsh, http://thejustinwalsh.com/

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the
"Software"), to deal in the Software without restriction, including
without limitation the rights to use, copy, modify, merge, publish,
distribute, sublicense, and/or sell copies of the Software, and to
permit persons to whom the Software is furnished to do so, subject to
the following conditions:

The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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