76 lines
3.1 KiB
C#
76 lines
3.1 KiB
C#
//-----------------------------------------------------------------------------
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//-----------------------------------------------------------------------------
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namespace System.Activities.Persistence
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{
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using System;
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using System.Collections.Generic;
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using System.Runtime;
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using System.Transactions;
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using System.Xml.Linq;
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public abstract class PersistenceIOParticipant : PersistenceParticipant
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{
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protected PersistenceIOParticipant(bool isSaveTransactionRequired, bool isLoadTransactionRequired)
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: base(isSaveTransactionRequired, isLoadTransactionRequired)
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{
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}
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// Passed-in dictionaries are read-only.
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[Fx.Tag.Throws.Timeout("The operation could not be completed before the timeout. The transaction should be rolled back and the pipeline aborted.")]
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[Fx.Tag.Throws(typeof(OperationCanceledException), "The operation has been aborted. The transaction should be rolled back and the pipeline aborted.")]
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[Fx.Tag.Throws(typeof(TransactionException), "The transaction associated with the operation has failed. The pipeline should be aborted.")]
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protected virtual IAsyncResult BeginOnSave(IDictionary<XName, object> readWriteValues, IDictionary<XName, object> writeOnlyValues, TimeSpan timeout, AsyncCallback callback, object state)
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{
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return new CompletedAsyncResult(callback, state);
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}
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[Fx.Tag.InheritThrows(From = "BeginOnSave")]
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protected virtual void EndOnSave(IAsyncResult result)
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{
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CompletedAsyncResult.End(result);
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}
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// Passed-in dictionary is read-only.
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[Fx.Tag.InheritThrows(From = "BeginOnSave")]
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protected virtual IAsyncResult BeginOnLoad(IDictionary<XName, object> readWriteValues, TimeSpan timeout, AsyncCallback callback, object state)
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{
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return new CompletedAsyncResult(callback, state);
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}
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[Fx.Tag.InheritThrows(From = "BeginOnLoad")]
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protected virtual void EndOnLoad(IAsyncResult result)
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{
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CompletedAsyncResult.End(result);
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}
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protected abstract void Abort();
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internal override IAsyncResult InternalBeginOnSave(IDictionary<XName, object> readWriteValues, IDictionary<XName, object> writeOnlyValues, TimeSpan timeout, AsyncCallback callback, object state)
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{
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return BeginOnSave(readWriteValues, writeOnlyValues, timeout, callback, state);
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}
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internal override void InternalEndOnSave(IAsyncResult result)
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{
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EndOnSave(result);
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}
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internal override IAsyncResult InternalBeginOnLoad(IDictionary<XName, object> readWriteValues, TimeSpan timeout, AsyncCallback callback, object state)
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{
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return BeginOnLoad(readWriteValues, timeout, callback, state);
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}
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internal override void InternalEndOnLoad(IAsyncResult result)
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{
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EndOnLoad(result);
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}
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internal override void InternalAbort()
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{
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Abort();
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}
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}
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}
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