/// <summary>
/// Begins a fluent find interface.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="collection">The collection.</param>
/// <param name="filter">The filter.</param>
/// <param name="options">The options.</param>
/// <returns>
/// A fluent find interface.
/// </returns>
public static IFindFluent <TDocument, TDocument> Find <TDocument>(this IMongoCollection <TDocument> collection, FilterDefinition <TDocument> filter, FindOptions options = null)
{
FindOptions <TDocument, TDocument> genericOptions;
if (options == null)
{
genericOptions = new FindOptions <TDocument>();
}
else
{
genericOptions = new FindOptions <TDocument>
{
AllowPartialResults = options.AllowPartialResults,
BatchSize = options.BatchSize,
Comment = options.Comment,
CursorType = options.CursorType,
MaxTime = options.MaxTime,
Modifiers = options.Modifiers,
NoCursorTimeout = options.NoCursorTimeout,
OplogReplay = options.OplogReplay
};
}
return(new FindFluent <TDocument, TDocument>(collection, filter, genericOptions));
}
/// <summary>
/// Begins a fluent find interface.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="collection">The collection.</param>
/// <param name="filter">The filter.</param>
/// <param name="options">The options.</param>
/// <returns>
/// A fluent interface.
/// </returns>
public static IFindFluent <TDocument, TDocument> Find <TDocument>(this IMongoCollection <TDocument> collection, Expression <Func <TDocument, bool> > filter, FindOptions options = null)
{
Ensure.IsNotNull(collection, nameof(collection));
Ensure.IsNotNull(filter, nameof(filter));
return(collection.Find(new ExpressionFilterDefinition <TDocument>(filter), options));
}
public override IAsyncCursor <TProjection> FindSync <TProjection>(IClientSessionHandle session, FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options = null, CancellationToken cancellationToken = default(CancellationToken))
{
return(_wrappedCollection.FindSync(session, CombineFilters(filter), options, cancellationToken));
}
public override Task <IAsyncCursor <TProjection> > FindAsync <TProjection>(FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options = null, CancellationToken cancellationToken = default(CancellationToken))
{
return(_wrappedCollection.FindAsync(CombineFilters(filter), options, cancellationToken));
}
// constructors
public FindFluent(IMongoCollection <TDocument> collection, object filter, FindOptions <TResult> options)
{
_collection = Ensure.IsNotNull(collection, "collection");
_filter = Ensure.IsNotNull(filter, "filter");
_options = Ensure.IsNotNull(options, "options");
}
public static async IAsyncEnumerable <TDocument> ToAsyncEnumerable <TDocument>(this IMongoCollection <TDocument> collection, FilterDefinition <TDocument> filter, FindOptions <TDocument, TDocument> options = null, [EnumeratorCancellation] CancellationToken cancellationToken = default)
{
using var cursor = await collection.FindAsync(filter, options, cancellationToken);
while (await cursor.MoveNextAsync())
{
foreach (var doc in cursor.Current)
{
yield return(doc);
}
}
}
// constructors
public FindFluent(IMongoCollection <TDocument> collection, FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options)
{
_collection = Ensure.IsNotNull(collection, nameof(collection));
_filter = Ensure.IsNotNull(filter, nameof(filter));
_options = Ensure.IsNotNull(options, nameof(options));
}
/// <inheritdoc /> public abstract Task <IAsyncCursor <TProjection> > FindAsync <TProjection>(FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options = null, CancellationToken cancellationToken = default(CancellationToken));
public override Task <IAsyncCursor <TProjection> > FindAsync <TProjection>(FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options, CancellationToken cancellationToken)
{
Ensure.IsNotNull(filter, nameof(filter));
options = options ?? new FindOptions <TDocument, TProjection>();
var operation = CreateFindOperation <TProjection>(filter, options);
return(ExecuteReadOperationAsync(operation, cancellationToken));
}
private FindOperation <TProjection> CreateFindOperation <TProjection>(FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options)
{
var projection = options.Projection ?? new ClientSideDeserializationProjectionDefinition <TDocument, TProjection>();
var renderedProjection = projection.Render(_documentSerializer, _settings.SerializerRegistry);
return(new FindOperation <TProjection>(
_collectionNamespace,
renderedProjection.ProjectionSerializer,
_messageEncoderSettings)
{
AllowPartialResults = options.AllowPartialResults,
BatchSize = options.BatchSize,
Comment = options.Comment,
CursorType = options.CursorType.ToCore(),
Filter = filter.Render(_documentSerializer, _settings.SerializerRegistry),
Limit = options.Limit,
MaxAwaitTime = options.MaxAwaitTime,
MaxTime = options.MaxTime,
Modifiers = options.Modifiers,
NoCursorTimeout = options.NoCursorTimeout,
OplogReplay = options.OplogReplay,
Projection = renderedProjection.Document,
ReadConcern = _settings.ReadConcern,
Skip = options.Skip,
Sort = options.Sort == null ? null : options.Sort.Render(_documentSerializer, _settings.SerializerRegistry)
});
}
public override Task <IAsyncCursor <TProjection> > FindAsync <TProjection>(FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options, CancellationToken cancellationToken)
{
Ensure.IsNotNull(filter, nameof(filter));
options = options ?? new FindOptions <TDocument, TProjection>();
var projection = options.Projection ?? new ClientSideDeserializationProjectionDefinition <TDocument, TProjection>();
var renderedProjection = projection.Render(_documentSerializer, _settings.SerializerRegistry);
var operation = new FindOperation <TProjection>(
_collectionNamespace,
renderedProjection.ProjectionSerializer,
_messageEncoderSettings)
{
AllowPartialResults = options.AllowPartialResults,
BatchSize = options.BatchSize,
Comment = options.Comment,
CursorType = options.CursorType.ToCore(),
Filter = filter.Render(_documentSerializer, _settings.SerializerRegistry),
Limit = options.Limit,
MaxTime = options.MaxTime,
Modifiers = options.Modifiers,
NoCursorTimeout = options.NoCursorTimeout,
OplogReplay = options.OplogReplay,
Projection = renderedProjection.Document,
ReadConcern = _settings.ReadConcern,
Skip = options.Skip,
Sort = options.Sort == null ? null : options.Sort.Render(_documentSerializer, _settings.SerializerRegistry)
};
return(ExecuteReadOperationAsync(operation, cancellationToken));
}
/// <summary>
/// Finds the documents matching the filter.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="collection">The collection.</param>
/// <param name="filter">The filter.</param>
/// <param name="options">The options.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A Task whose result is a cursor.</returns>
public static Task <IAsyncCursor <TDocument> > FindAsync <TDocument>(this IMongoCollection <TDocument> collection, FilterDefinition <TDocument> filter, FindOptions <TDocument, TDocument> options = null, CancellationToken cancellationToken = default(CancellationToken))
{
Ensure.IsNotNull(collection, "collection");
Ensure.IsNotNull(filter, "filter");
return(collection.FindAsync <TDocument>(filter, options, cancellationToken));
}
/// <summary>
/// Begins a fluent find interface.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="collection">The collection.</param>
/// <param name="filter">The filter.</param>
/// <param name="options">The options.</param>
/// <returns>
/// A fluent interface.
/// </returns>
public static IFindFluent <TDocument, TDocument> Find <TDocument>(this IMongoCollection <TDocument> collection, Expression <Func <TDocument, bool> > filter, FindOptions options = null)
{
Ensure.IsNotNull(collection, "collection");
Ensure.IsNotNull(filter, "filter");
return(Find(collection, (object)filter, options));
}
/// <summary>
/// Finds the documents matching the filter.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="collection">The collection.</param>
/// <param name="filter">The filter.</param>
/// <param name="options">The options.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>A Task whose result is a cursor.</returns>
public static Task <IAsyncCursor <TDocument> > FindAsync <TDocument>(this IMongoCollection <TDocument> collection, Expression <Func <TDocument, bool> > filter, FindOptions <TDocument, TDocument> options = null, CancellationToken cancellationToken = default(CancellationToken))
{
Ensure.IsNotNull(collection, nameof(collection));
Ensure.IsNotNull(filter, nameof(filter));
return(collection.FindAsync <TDocument>(new ExpressionFilterDefinition <TDocument>(filter), options, cancellationToken));
}
// constructors
public FindFluent(IMongoCollection <TDocument> collection, FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options)
{
_collection = Ensure.IsNotNull(collection, "collection");
_filter = Ensure.IsNotNull(filter, "filter");
_options = Ensure.IsNotNull(options, "options");
}
/// <inheritdoc />
public virtual IAsyncCursor <TProjection> FindSync <TProjection>(FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options = null, CancellationToken cancellationToken = default(CancellationToken))
{
throw new NotImplementedException();
}
// constructors
public FindFluent(IClientSessionHandle session, IMongoCollection <TDocument> collection, FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options)
{
_session = session; // can be null
_collection = Ensure.IsNotNull(collection, nameof(collection));
_filter = Ensure.IsNotNull(filter, nameof(filter));
_options = Ensure.IsNotNull(options, nameof(options));
}
/// <inheritdoc />
public virtual Task <IAsyncCursor <TProjection> > FindAsync <TProjection>(IClientSessionHandle session, FilterDefinition <TDocument> filter, FindOptions <TDocument, TProjection> options = null, CancellationToken cancellationToken = default(CancellationToken))
{
throw new NotImplementedException();
}
public FindFluent <TDocument, TDocument> Find(object filter)
{
var options = new FindOptions <TDocument>();
return(new FindFluent <TDocument, TDocument>(this, filter, options));
}