gistfile1.txt

//
//  NECacheObject.m
//
//  Created by nrj on 4/28/11.
//

#import "NECacheObject.h"


@implementation NECacheObject

@synthesize expireDate, object;


+ (NECacheObject *)cacheObject:(id)object expiresMinutesFromNow:(NSInteger)expireMinutes {
	
	NECacheObject *instance = [[NECacheObject alloc] init];
	
	[instance setExpireDate:[NSDate dateWithTimeIntervalSinceNow:(expireMinutes * 60)]];
	[instance setObject:object];
	
	return [instance autorelease];
}


- (id)initWithCoder:(NSCoder *)aDecoder {
	
	if ((self = [super init])) {
		
		[self setExpireDate:[aDecoder decodeObjectForKey:@"expireDate"]];
		[self setObject:[aDecoder decodeObjectForKey:@"object"]];
	}
	
	return self;
}


- (NSString *)description {
	
	return [NSString stringWithFormat:@"<NECacheObject value:%@ expires:%@>", object, expireDate];
}


- (BOOL)isExpired {

	NSDate *date = [NSDate date];
	
	return ([date compare:expireDate] == NSOrderedDescending);
}


- (void)expireNow {

	[self setExpireDate:[NSDate date]];
}


- (void)encodeWithCoder:(NSCoder *)aCoder {
	
	[aCoder encodeObject:expireDate forKey:@"expireDate"];
	[aCoder encodeObject:object forKey:@"object"];
}


- (void)dealloc {
	
	[expireDate release];
	[object release];
	[super dealloc];
}



@end