/// <summary>
/// Constructor for enumerating over all documents starting from a given sequence
/// </summary>
/// <param name="db">The database to retrieve documents from</param>
/// <param name="lastSequence">The sequence to start enumerating from</param>
/// <param name="options">The enumeration options (null for default).</param>
public CBForestDocEnumerator(C4Database *db, long lastSequence, C4EnumeratorOptions options)
{
var options_ = &options;
_currentDocInfo = (C4DocumentInfo *)Marshal.AllocHGlobal(sizeof(C4DocumentInfo)).ToPointer();
_e = (C4DocEnumerator *)RetryHandler.RetryIfBusy().Execute(err => Native.c4db_enumerateChanges(db, (ulong)lastSequence, options_, err));
}
/// <summary>
/// Constructor for enumerating over documents which need indexing
/// by a given indexer
/// </summary>
/// <param name="indexer">The indexer to use for enumeration.</param>
public CBForestDocEnumerator(C4Indexer *indexer)
{
_e = (C4DocEnumerator *)RetryHandler.RetryIfBusy().AllowError(0, C4ErrorDomain.Any)
.Execute(err => Native.c4indexer_enumerateDocuments(indexer, err));
_currentDocInfo = (C4DocumentInfo *)Marshal.AllocHGlobal(sizeof(C4DocumentInfo)).ToPointer();
_validationLogic = doc => !((string)doc->docID).StartsWith("_design/");
}
/// <summary>
/// Constructor for enumerating over a given subset of documents in a database
/// </summary>
/// <param name="db">The database to retrieve documents from</param>
/// <param name="startKey">The key to start enumeration from</param>
/// <param name="endKey">The key to end enumeration at</param>
/// <param name="options">The enumeration options (null for default).</param>
public CBForestDocEnumerator(C4Database *db, string startKey, string endKey, C4EnumeratorOptions options)
{
var options_ = &options;
_currentDocInfo = (C4DocumentInfo *)Marshal.AllocHGlobal(sizeof(C4DocumentInfo)).ToPointer();
_e = (C4DocEnumerator *)RetryHandler.RetryIfBusy().Execute(err => Native.c4db_enumerateAllDocs(db, startKey, endKey, options_, err));
}
/// <summary>
/// The main entry point into this class. It will retry the operation a specified
/// number of times if the result of the operation is that the database is busy.
/// </summary>
/// <returns>A retry handler object for further fluent operations</returns>
/// <param name="maxAttempts">The number of times to retry before giving up</param>
public static RetryHandler RetryIfBusy(uint maxAttempts = RETRY_ATTEMPTS)
{
if (maxAttempts == 0)
{
throw new ArgumentException("Surely you want to try more than zero times", "maxAttempts");
}
var retVal = new RetryHandler();
retVal._maxAttempts = maxAttempts;
return(retVal);
}
public ExpiryEnumerator(C4Database *db, bool dispose)
{
_e = (C4ExpiryEnumerator *)RetryHandler.RetryIfBusy().Execute(err => Native.c4db_enumerateExpired(db, err));
_dispose = dispose;
}
/// <summary>
/// The main entry point into this class. It will retry the operation a specified
/// number of times if the result of the operation is that the database is busy.
/// </summary>
/// <returns>A retry handler object for further fluent operations</returns>
/// <param name="maxAttempts">The number of times to retry before giving up</param>
public static RetryHandler RetryIfBusy(uint maxAttempts = RETRY_ATTEMPTS)
{
if (maxAttempts == 0) {
throw new ArgumentException("Surely you want to try more than zero times", "maxAttempts");
}
var retVal = new RetryHandler();
retVal._maxAttempts = maxAttempts;
return retVal;
}