private CacheFile(string path, TimeSpan?timeout, CacheFileRequestCallback requestCallback, CacheFileUpdateCallback updateCallback)
{
Path = path;
Timeout = timeout;
RequestCallback = requestCallback;
UpdateCallback = updateCallback;
}
/// <summary>
/// Creates a new <see cref="CacheFile" /> instance for the file specified by <paramref name="path" />. If the file does not exist, yet, it is created upon first access.
/// </summary>
/// <param name="path">A <see cref="string" /> that contains the name of the file that represents the cached version. This file does not need to exist.</param>
/// <param name="timeout">A <see cref="TimeSpan" /> value that specifies the timeout period after which the file will be updated. This value is compared to the LastWriteTime property of the file.</param>
/// <param name="updateCallback">The method that is called when the file needs to be updated.</param>
/// <returns>
/// The <see cref="CacheFile" /> this method creates.
/// </returns>
public static CacheFile CreateWithTimeout(string path, TimeSpan timeout, CacheFileUpdateCallback updateCallback)
{
Check.ArgumentNull(path, nameof(path));
Check.ArgumentEx.StringNotEmpty(path, nameof(path));
Check.ArgumentNull(updateCallback, nameof(updateCallback));
return(new CacheFile(path, timeout, null, updateCallback));
}
/// <summary>
/// Creates a new <see cref="CacheFile" /> instance for the file specified by <paramref name="path" />. If the file does not exist, yet, it is created upon first access.
/// </summary>
/// <param name="path">A <see cref="string" /> that contains the name of the file that represents the cached version. This file does not need to exist.</param>
/// <param name="requestCallback">The method that is called when the file is accessed. If the method returns <see langword="false" />, it means the cached file is invalid and <paramref name="updateCallback" /> is called to update the file. If it returns <see langword="true" />, the existing file is read from the disk. This method is only called when the file on the disk exists.</param>
/// <param name="updateCallback">The method that is called when the file needs to be updated.</param>
/// <returns>
/// The <see cref="CacheFile" /> this method creates.
/// </returns>
public static CacheFile CreateWithCallback(string path, CacheFileRequestCallback requestCallback, CacheFileUpdateCallback updateCallback)
{
Check.ArgumentNull(path, nameof(path));
Check.ArgumentEx.StringNotEmpty(path, nameof(path));
Check.ArgumentNull(requestCallback, nameof(requestCallback));
Check.ArgumentNull(updateCallback, nameof(updateCallback));
return(new CacheFile(path, null, requestCallback, updateCallback));
}
