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DbUpdateException.cs
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68 lines (61 loc) · 2.94 KB
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// Copyright (c) .NET Foundation. All rights reserved.
// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
using System;
using System.Collections.Generic;
using System.Linq;
using JetBrains.Annotations;
using Microsoft.Data.Entity.ChangeTracking;
using Microsoft.Data.Entity.Internal;
using Microsoft.Data.Entity.Update;
using Microsoft.Data.Entity.Utilities;
namespace Microsoft.Data.Entity
{
/// <summary>
/// An exception that is thrown when an error is encountered while saving to the database.
/// </summary>
public class DbUpdateException : Exception
{
private readonly LazyRef<IReadOnlyList<EntityEntry>> _entries;
/// <summary>
/// Initializes a new instance of the <see cref="DbUpdateException" /> class.
/// </summary>
/// <param name="message"> The error message that explains the reason for the exception. </param>
/// <param name="innerException"> The exception that is the cause of the current exception. </param>
public DbUpdateException([NotNull] string message, [CanBeNull] Exception innerException)
: base(message, innerException)
{
_entries = new LazyRef<IReadOnlyList<EntityEntry>>(() => new List<EntityEntry>());
}
/// <summary>
/// Initializes a new instance of the <see cref="DbUpdateException" /> class.
/// </summary>
/// <param name="message"> The error message that explains the reason for the exception. </param>
/// <param name="entries"> The entries that were involved in the error. </param>
public DbUpdateException(
[NotNull] string message,
[NotNull] IReadOnlyList<IUpdateEntry> entries)
: this(message, null, entries)
{
}
/// <summary>
/// Initializes a new instance of the <see cref="DbUpdateException" /> class.
/// </summary>
/// <param name="message"> The error message that explains the reason for the exception. </param>
/// <param name="entries"> The entries that were involved in the error. </param>
/// <param name="innerException"> The exception that is the cause of the current exception. </param>
public DbUpdateException(
[NotNull] string message,
[CanBeNull] Exception innerException,
[NotNull] IReadOnlyList<IUpdateEntry> entries)
: base(message, innerException)
{
Check.NotEmpty(entries, nameof(entries));
_entries = new LazyRef<IReadOnlyList<EntityEntry>>(() => entries.Select(e => e.ToEntityEntry()).ToList());
}
/// <summary>
/// Gets the entries that were involved in the error. Typically this is a single entry, but in some cases it
/// may be zero or multiple entries.
/// </summary>
public virtual IReadOnlyList<EntityEntry> Entries => _entries.Value;
}
}