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PushEachOptions.cs
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PushEachOptions.cs
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/* Copyright 2010-present MongoDB Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using MongoDB.Driver;
using MongoDB.Driver.Linq.Utils;
namespace MongoDB.Driver.Builders
{
/// <summary>
/// Arguments for $push with an $each clause.
/// </summary>
public class PushEachOptions
{
// private fields
private int? _position;
private int? _slice;
private IMongoSortBy _sort;
// public properties
/// <summary>
/// Gets or sets the position (see $position).
/// </summary>
public int? Position
{
get { return _position; }
set { _position = value; }
}
/// <summary>
/// Gets or sets the slice (see $slice).
/// </summary>
public int? Slice
{
get { return _slice; }
set { _slice = value; }
}
/// <summary>
/// Gets or sets the sort (see $sort).
/// </summary>
public IMongoSortBy Sort
{
get { return _sort; }
set { _sort = value; }
}
}
/// <summary>
/// A fluent builder for PushEachOptions.
/// </summary>
/// <typeparam name="TValue">The type of the value.</typeparam>
public class PushEachOptionsBuilder<TValue>
{
// private fields
private readonly BsonSerializationInfoHelper _serializationInfoHelper;
private int? _position;
private SortByBuilder<TValue> _sortBy;
private int? _slice;
// constructors
/// <summary>
/// Initializes a new instance of the <see cref="PushEachOptionsBuilder{TValue}" /> class.
/// </summary>
/// <param name="serializationInfoHelper">The serialization info helper.</param>
internal PushEachOptionsBuilder(BsonSerializationInfoHelper serializationInfoHelper)
{
_serializationInfoHelper = serializationInfoHelper;
}
// public methods
/// <summary>
/// Specifies the position for the array.
/// </summary>
/// <param name="position">The position.</param>
/// <returns>The builder.</returns>
public PushEachOptionsBuilder<TValue> Position(int position)
{
_position = position;
return this;
}
/// <summary>
/// Specifies a slice for the array.
/// </summary>
/// <param name="slice">The slice.</param>
/// <returns>The builder.</returns>
public PushEachOptionsBuilder<TValue> Slice(int slice)
{
_slice = slice;
return this;
}
/// <summary>
/// Sorts the array in ascending order.
/// </summary>
/// <param name="memberExpressions">The member expressions.</param>
/// <returns>The builder.</returns>
public PushEachOptionsBuilder<TValue> SortAscending(params Expression<Func<TValue, object>>[] memberExpressions)
{
if (_sortBy == null)
{
_sortBy = new SortByBuilder<TValue>(_serializationInfoHelper);
}
_sortBy.Ascending(memberExpressions);
return this;
}
/// <summary>
/// Sorts the array in descending order.
/// </summary>
/// <param name="memberExpressions">The member expressions.</param>
/// <returns>The builder.</returns>
public PushEachOptionsBuilder<TValue> SortDescending(params Expression<Func<TValue, object>>[] memberExpressions)
{
if (_sortBy == null)
{
_sortBy = new SortByBuilder<TValue>(_serializationInfoHelper);
}
_sortBy.Descending(memberExpressions);
return this;
}
/// <summary>
/// Builds the PushEachArgs.
/// </summary>
/// <returns>A built PushEachOptions.</returns>
public PushEachOptions Build()
{
return new PushEachOptions
{
Position = _position,
Slice = _slice,
Sort = _sortBy
};
}
}
}