public void FutureTest()
{
var db = new TrackerDataContext { Log = Console.Out };
CacheSettings cache = new CacheSettings(120);
// build up queries
var q1 = db.User
.ByEmailAddress("*****@*****.**")
.FutureCache(cache);
var q2 = db.Task
.Where(t => t.Summary == "Test")
.FutureCache(cache);
// this triggers the loading of all the future queries
var users = q1.ToList();
Assert.IsNotNull(users);
// this should already be loaded
Assert.IsNotNull(q2);
var tasks = q2.ToList();
Assert.IsNotNull(tasks);
// queries are loaded and cached, run same queries again...
var c1 = db.User
.ByEmailAddress("*****@*****.**")
.FutureCache(cache);
var c2 = db.Task
.Where(t => t.Summary == "Test")
.FutureCache(cache);
// should be loaded because it came from cache
Assert.IsNotNull(c1);
Assert.IsNotNull(c2);
users = c1.ToList();
Assert.IsNotNull(users);
tasks = c2.ToList();
Assert.IsNotNull(tasks);
}
public static CacheSettings WithGroup(this CacheSettings settings, string group)
{
settings.Group = group;
return(settings);
}
public static CacheSettings WithProvider(this CacheSettings settings, string provider)
{
settings.Provider = provider;
return(settings);
}
public static CacheSettings WithCacheItemRemovedCallback(this CacheSettings settings, CacheItemRemovedCallback cacheItemRemovedCallback)
{
settings.CacheItemRemovedCallback = cacheItemRemovedCallback;
return(settings);
}
/// <summary>
/// Saves the specified key to the default cache provider for a specific duration.
/// </summary>
/// <typeparam name="T">The type for data being saved,</typeparam>
/// <param name="key">The key used to store the data in the cache provider.</param>
/// <param name="data">The data to be cached in the provider.</param>
/// <param name="duration">The duration to store the data in the cache.</param>
public static void Set <T>(string key, T data, int duration)
{
DefaultProvider.Set(key, data, CacheSettings.FromDuration(duration));
}
/// <summary>
/// Converts the profile element to a <see cref="CacheSettings"/> instance.
/// </summary>
/// <returns>An instance of <see cref="CacheSettings"/>.</returns>
public CacheSettings ToCacheSettings()
{
var cache = new CacheSettings();
cache.Duration = Duration;
cache.Mode = Mode;
if (!string.IsNullOrEmpty(Provider))
cache.Provider = Provider;
if (!string.IsNullOrEmpty(Group))
cache.Group = Group;
return cache;
}
public static CacheSettings WithCacheDependency(this CacheSettings settings, CacheDependency cacheDependency)
{
settings.CacheDependency = cacheDependency;
return(settings);
}
public static CacheSettings WithPriority(this CacheSettings settings, CacheItemPriority priority)
{
settings.Priority = priority;
return(settings);
}
public void FromCacheFutre()
{
var db = new TrackerDataContext { Log = Console.Out };
CacheSettings cache = new CacheSettings(120);
// build up queries
var q1 = db.Task
.Where(t => t.Summary == "Test")
.FromCache(cache)
.ToList();
// duplicate query except count
var q2 = db.Task
.Where(t => t.Summary == "Test")
.FutureCache(120);
var q3 = db.Task
.Where(t => t.Summary == "Test")
.FutureCacheCount(cache);
var count = q3.Value;
Assert.Greater(count, 0);
var tasks = q2.ToList();
Assert.IsNotNull(tasks);
Assert.AreEqual(q1.Count, tasks.Count);
}
public void FutureValueReverseTest()
{
var db = new TrackerDataContext { Log = Console.Out };
CacheSettings cache = new CacheSettings(120);
// build up queries
var q1 = db.User
.Where(u => u.EmailAddress == "*****@*****.**")
.FutureCacheFirstOrDefault(cache);
var q2 = db.Task
.Where(t => t.Summary == "Test")
.FutureCacheCount(cache);
// duplicate query except count
var q3 = db.Task
.Where(t => t.Summary == "Test")
.FutureCache(cache);
// access q2 first to trigger loading, testing loading from FutureCount
// this triggers the loading of all the future queries
var count = q2.Value;
Assert.Greater(count, 0);
// this should already be loaded
Assert.IsTrue(((IFutureQuery)q1).IsLoaded);
var user = q1.Value;
Assert.IsNotNull(user);
var tasks = q3.ToList();
Assert.IsNotNull(tasks);
// queries are loaded and cached, run same queries again...
var c1 = db.User
.ByEmailAddress("*****@*****.**")
.FutureCacheFirstOrDefault(cache);
var c2 = db.Task
.Where(t => t.Summary == "Test")
.FutureCacheCount(cache);
var c3 = db.Task
.Where(t => t.Summary == "Test")
.FutureCache(cache);
// should be loaded because it came from cache
Assert.IsTrue(c1.IsLoaded);
Assert.IsTrue(c2.IsLoaded);
Assert.IsNotNull(c3);
user = c1.Value;
Assert.IsNotNull(user);
count = c2.Value;
Assert.Greater(count, 0);
tasks = c3.ToList();
Assert.IsNotNull(tasks);
}
/// <summary>
/// Saves a key/value pair to the cache if the key does not already exist.
/// </summary>
/// <typeparam name="T">The type for data being retrieved from cache,</typeparam>
/// <param name="key">The key used to store the data in the cache provider.</param>
/// <param name="valueFactory">The function used to generate a value for the key.</param>
/// <param name="settings">The <see cref="CacheSettings"/> to be used when storing in the provider.</param>
/// <returns>
/// An instance of T that will be either the existing value for the key if the key is already in the cache,
/// or the new value if the key was not in the cache.
/// </returns>
public static T GetOrSet <T>(string key, Func <string, T> valueFactory, CacheSettings settings)
{
return(DefaultProvider.GetOrSet(key, valueFactory, settings));
}
/// <summary>
/// Saves a key/value pair to the cache if the key does not already exist.
/// </summary>
/// <typeparam name="T">The type for data being retrieved from cache,</typeparam>
/// <param name="key">The key used to store the data in the cache provider.</param>
/// <param name="data">The data to be cached in the provider.</param>
/// <param name="settings">The <see cref="CacheSettings"/> to be used when storing in the provider.</param>
/// <returns>
/// An instance of T that will be either the existing value for the key if the key is already in the cache,
/// or the new value if the key was not in the cache.
/// </returns>
public static T GetOrSet <T>(string key, T data, CacheSettings settings)
{
return(DefaultProvider.GetOrSet(key, data, settings));
}
/// <summary>
/// Saves the specified key using the settings from the specified cache profile.
/// </summary>
/// <typeparam name="T">The type for data being saved,</typeparam>
/// <param name="key">The key used to store the data in the cache provider.</param>
/// <param name="data">The data to be cached in the provider.</param>
/// <param name="settings">The <see cref="CacheSettings"/> to be used when storing in the provider.</param>
public static void Set <T>(string key, T data, CacheSettings settings)
{
GetProvider(settings.Provider).Set(key, data, settings);
}
/// <summary>
/// Saves the specified key using the settings from the specified cache profile.
/// </summary>
/// <typeparam name="T">The type for data being saved,</typeparam>
/// <param name="key">The key used to store the data in the cache provider.</param>
/// <param name="data">The data to be cached in the provider.</param>
/// <param name="profile">The name of the cache profile to use.</param>
public static void Set <T>(string key, T data, string profile)
{
CacheSettings settings = GetProfile(profile);
GetProvider(settings.Provider).Set(key, data, settings);
}
public static CacheSettings WithDuration(this CacheSettings settings, TimeSpan duration)
{
settings.Duration = duration;
settings.Mode = CacheExpirationMode.Duration;
return(settings);
}
public static CacheSettings WithAbsoluteExpiration(this CacheSettings settings, DateTime absoluteExpiration)
{
settings.AbsoluteExpiration = absoluteExpiration;
settings.Mode = CacheExpirationMode.Absolute;
return(settings);
}
public void FutureCountTest()
{
var db = new TrackerDataContext { Log = Console.Out };
CacheSettings cache = new CacheSettings(120);
// build up queries
var q1 = db.User
.ByEmailAddress("*****@*****.**")
.FutureCache(cache);
var q2 = db.Task
.Where(t => t.Details == "Hello world!")
.FutureCacheCount(cache);
// this triggers the loading of all the future queries
var users = q1.ToList();
Assert.IsNotNull(users);
// this should already be loaded
Assert.IsTrue(((IFutureQuery)q2).IsLoaded);
var count = q2.Value;
Assert.Greater(count, 0);
// queries are loaded and cached, run same queries again...
var c1 = db.User
.ByEmailAddress("*****@*****.**")
.FutureCache(cache);
var c2 = db.Task
.Where(t => t.Details == "Hello world!")
.FutureCacheCount(cache);
// should be loaded because it came from cache
Assert.IsNotNull(c1);
Assert.IsTrue(c2.IsLoaded);
users = c1.ToList();
Assert.IsNotNull(users);
count = c2.Value;
Assert.Greater(count, 0);
}
public static CacheSettings WithCacheEmptyResult(this CacheSettings settings, bool cacheEmptyResult)
{
settings.CacheEmptyResult = cacheEmptyResult;
return(settings);
}
public static CacheSettings WithDuration(this CacheSettings settings, int duration)
{
settings.Duration = TimeSpan.FromSeconds(duration);
settings.Mode = CacheExpirationMode.Duration;
return(settings);
}
public static CacheSettings AddCacheDependency(this CacheSettings settings, params CacheDependency[] cacheDependencies)
{
return(AddCacheDependency(settings, (IEnumerable <CacheDependency>)cacheDependencies));
}
public static CacheSettings AddCacheDependency(this CacheSettings settings, params SqlCacheDependency[] cacheDependencies)
{
return(AddCacheDependency(settings, cacheDependencies.Cast <CacheDependency>()));
}
/// <summary>
/// Creates a new object that is a copy of the current instance.
/// </summary>
/// <returns>
/// A new object that is a copy of this instance.
/// </returns>
public CacheSettings Clone()
{
var clone = new CacheSettings
{
Mode = Mode,
Duration = Duration,
AbsoluteExpiration = AbsoluteExpiration,
Priority = Priority,
CacheEmptyResult = CacheEmptyResult,
CacheDependency = CacheDependency,
CacheItemRemovedCallback = CacheItemRemovedCallback,
Provider = Provider,
Group = Group
};
if (String.IsNullOrEmpty(Group))
clone.Group = CacheManager.DefaultGroup;
return clone;
}
/// <summary> /// Saves the specified key to the cache provider. /// </summary> /// <typeparam name="T">The type for data being saved,</typeparam> /// <param name="key">The key used to store the data in the cache provider.</param> /// <param name="data">The data to be cached in the provider.</param> /// <param name="settings">The <see cref="CacheSettings"/> to be used when storing in the provider.</param> public abstract void Set <T>(string key, T data, CacheSettings settings);
