/// <summary>
/// Creates a descending sort.
/// </summary>
/// <param name="field">The field.</param>
/// <returns>A descending sort.</returns>
public SortDefinition <TDocument> Descending(FieldDefinition <TDocument> field)
{
return(new DirectionalSortDefinition <TDocument>(field, SortDirection.Descending));
}
public WildcardIndexKeyDefinition(FieldDefinition <TDocument> field = null)
{
_field = field;
}
/// <summary>
/// Combines an existing index keys definition with a descending index key definition.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="keys">The keys.</param>
/// <param name="field">The field.</param>
/// <returns>
/// A combined index keys definition.
/// </returns>
public static IndexKeysDefinition <TDocument> Descending <TDocument>(this IndexKeysDefinition <TDocument> keys, FieldDefinition <TDocument> field)
{
var builder = Builders <TDocument> .IndexKeys;
return(builder.Combine(keys, builder.Descending(field)));
}
public GeoHaystackIndexKeyDefinition(FieldDefinition <TDocument> field, FieldDefinition <TDocument> additionalFieldName = null)
{
_field = Ensure.IsNotNull(field, nameof(field));
_additionalFieldName = additionalFieldName;
}
public SimpleIndexKeyDefinition(FieldDefinition <TDocument> field, string type)
{
_field = Ensure.IsNotNull(field, nameof(field));
_type = type;
}
public static IndexKeysDefinition <TDocument> GeoHaystack <TDocument>(this IndexKeysDefinition <TDocument> keys, FieldDefinition <TDocument> field, FieldDefinition <TDocument> additionalFieldName = null)
{
var builder = Builders <TDocument> .IndexKeys;
return(builder.Combine(keys, builder.GeoHaystack(field, additionalFieldName)));
}
/// <summary>
/// Creates a wildcard index key definition. The method doesn't expect to specify a wildcard key explicitly.
/// </summary>
/// <param name="field">The wildcard key name. If the wildcard name is empty, the generated key will be `All field paths`, otherwise `A single field path`.</param>
/// <returns>A wildcard index key definition.</returns>
public IndexKeysDefinition <TDocument> Wildcard(FieldDefinition <TDocument> field = null)
{
return(new WildcardIndexKeyDefinition <TDocument>(field));
}
/// <summary>
/// Creates a 2dsphere index key definition.
/// </summary>
/// <param name="field">The field.</param>
/// <returns>A 2dsphere index key definition.</returns>
public IndexKeysDefinition <TDocument> Geo2DSphere(FieldDefinition <TDocument> field)
{
return(new SimpleIndexKeyDefinition <TDocument>(field, "2dsphere"));
}
/// <summary>
/// Creates a hashed index key definition.
/// </summary>
/// <param name="field">The field.</param>
/// <returns>A hashed index key definition.</returns>
public IndexKeysDefinition <TDocument> Hashed(FieldDefinition <TDocument> field)
{
return(new SimpleIndexKeyDefinition <TDocument>(field, "hashed"));
}
public IndexKeysDefinition <TDocument> GeoHaystack(FieldDefinition <TDocument> field, FieldDefinition <TDocument> additionalFieldName = null)
{
return(new GeoHaystackIndexKeyDefinition <TDocument>(field, additionalFieldName));
}
public IndexKeysDefinition <TDocument> GeoHaystack(Expression <Func <TDocument, object> > field, Expression <Func <TDocument, object> > additionalFieldName = null)
{
FieldDefinition <TDocument> additional = additionalFieldName == null ? null : new ExpressionFieldDefinition <TDocument>(additionalFieldName);
return(GeoHaystack(new ExpressionFieldDefinition <TDocument>(field), additional));
}
/// <summary>
/// Creates an ascending index key definition.
/// </summary>
/// <param name="field">The field.</param>
/// <returns>An ascending index key definition.</returns>
public IndexKeysDefinition <TDocument> Ascending(FieldDefinition <TDocument> field)
{
return(new DirectionalIndexKeyDefinition <TDocument>(field, SortDirection.Ascending));
}
/// <summary>
/// Combines an existing index keys definition with a hashed index key definition.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="keys">The keys.</param>
/// <param name="field">The field.</param>
/// <returns>
/// A combined index keys definition.
/// </returns>
public static IndexKeysDefinition <TDocument> Hashed <TDocument>(this IndexKeysDefinition <TDocument> keys, FieldDefinition <TDocument> field)
{
var builder = Builders <TDocument> .IndexKeys;
return(builder.Combine(keys, builder.Hashed(field)));
}
/// <summary>
/// Combines an existing index keys definition with a 2dsphere index key definition.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="keys">The keys.</param>
/// <param name="field">The field.</param>
/// <returns>
/// A combined index keys definition.
/// </returns>
public static IndexKeysDefinition <TDocument> Geo2DSphere <TDocument>(this IndexKeysDefinition <TDocument> keys, FieldDefinition <TDocument> field)
{
var builder = Builders <TDocument> .IndexKeys;
return(builder.Combine(keys, builder.Geo2DSphere(field)));
}
public DirectionalSortDefinition(FieldDefinition <TDocument> field, SortDirection direction)
{
_field = Ensure.IsNotNull(field, nameof(field));
_direction = direction;
}
/// <summary>
/// Creates a text index key definition.
/// </summary>
/// <param name="field">The field.</param>
/// <returns>A text index key definition.</returns>
public IndexKeysDefinition <TDocument> Text(FieldDefinition <TDocument> field)
{
return(new SimpleIndexKeyDefinition <TDocument>(field, "text"));
}
/// <summary>
/// Combines an existing sort with an descending field.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <param name="sort">The sort.</param>
/// <param name="field">The field.</param>
/// <returns>
/// A combined sort.
/// </returns>
public static SortDefinition <TDocument> Descending <TDocument>(this SortDefinition <TDocument> sort, FieldDefinition <TDocument> field)
{
var builder = Builders <TDocument> .Sort;
return(builder.Combine(sort, builder.Descending(field)));
}
/// <summary>
/// Gets the distinct values for a specified field.
/// </summary>
/// <typeparam name="TDocument">The type of the document.</typeparam>
/// <typeparam name="TField">The type of the result.</typeparam>
/// <param name="collection">The collection.</param>
/// <param name="field">The field.</param>
/// <param name="filter">The filter.</param>
/// <param name="options">The options.</param>
/// <param name="cancellationToken">The cancellation token.</param>
/// <returns>
/// The distinct values for the specified field.
/// </returns>
public static Task <IAsyncCursor <TField> > DistinctAsync <TDocument, TField>(this IMongoCollection <TDocument> collection, FieldDefinition <TDocument, TField> field, Expression <Func <TDocument, bool> > filter, DistinctOptions options = null, CancellationToken cancellationToken = default(CancellationToken))
{
Ensure.IsNotNull(collection, "collection");
Ensure.IsNotNull(field, "field");
Ensure.IsNotNull(filter, "filter");
return(collection.DistinctAsync <TField>(
field,
new ExpressionFilterDefinition <TDocument>(filter),
options,
cancellationToken));
}