private bool Persist()
{
IAsyncResult result = null;
try
{
if (this.data == null)
{
this.data = PersistenceManager.GenerateInitialData(this.instance);
}
if (this.context == null)
{
this.context = new WorkflowPersistenceContext(this.pipeline != null && this.pipeline.IsSaveTransactionRequired,
this.dependentTransaction, this.timeoutHelper.OriginalTimeout);
}
using (this.PrepareTransactionalCall(this.context.PublicTransaction))
{
result = this.instance.persistenceManager.BeginSave(this.data, this.operation, this.timeoutHelper.RemainingTime(), this.PrepareAsyncCompletion(persistedCallback), this);
}
}
finally
{
if (result == null && this.context != null)
{
this.context.Abort();
}
}
return(this.SyncContinue(result));
}
private bool Load()
{
var success = false;
IAsyncResult result = null;
try
{
var transactionRequired = this.application != null?this.application.IsLoadTransactionRequired() : false;
this.context = new WorkflowPersistenceContext(transactionRequired,
this.dependentTransaction, this.timeoutHelper.OriginalTimeout);
// Values is null if this is an initial load from the database. It is non-null
// if we already loaded values into a WorkflowApplicationInstance, and are now
// loading from that WAI.
if (this.values == null)
{
using (this.PrepareTransactionalCall(this.context.PublicTransaction))
{
if (this.loadAny)
{
result = this.persistenceManager.BeginTryLoad(this.timeoutHelper.RemainingTime(), this.PrepareAsyncCompletion(loadCompleteCallback), this);
}
else
{
result = this.persistenceManager.BeginLoad(this.timeoutHelper.RemainingTime(), this.PrepareAsyncCompletion(loadCompleteCallback), this);
}
}
}
success = true;
}
finally
{
if (!success && this.context != null)
{
this.context.Abort();
}
}
if (result == null)
{
return(this.LoadValues(null));
}
else
{
return(this.SyncContinue(result));
}
}
private bool Save()
{
if (this.pipeline != null)
{
IAsyncResult result = null;
try
{
if (this.context == null)
{
this.context = new WorkflowPersistenceContext(this.pipeline.IsSaveTransactionRequired,
this.dependentTransaction, this.timeoutHelper.RemainingTime());
}
this.instance.persistencePipelineInUse = this.pipeline;
Thread.MemoryBarrier();
if (this.instance.state == WorkflowApplicationState.Aborted)
{
throw FxTrace.Exception.AsError(new OperationCanceledException(SR.DefaultAbortReason));
}
using (this.PrepareTransactionalCall(this.context.PublicTransaction))
{
result = this.pipeline.BeginSave(this.timeoutHelper.RemainingTime(), this.PrepareAsyncCompletion(savedCallback), this);
}
}
finally
{
if (result == null)
{
this.instance.persistencePipelineInUse = null;
if (this.context != null)
{
this.context.Abort();
}
}
}
return(this.SyncContinue(result));
}
else
{
return(this.CompleteContext());
}
}
bool NotifyCompletion()
{
if (this.isUnloaded && this.instance.Controller.State == WorkflowInstanceState.Complete && this.instance.creationContext != null)
{
IAsyncResult result = null;
try
{
if (this.context == null)
{
this.context = new WorkflowPersistenceContext(this.instance, this.isCompletionTransactionRequired,
this.dependentTransaction, this.instance.persistTimeout);
}
using (PrepareTransactionalCall(this.context.PublicTransaction))
{
result = this.instance.creationContext.OnBeginWorkflowCompleted(this.instance.completionState, this.instance.workflowOutputs, this.instance.terminationException,
this.timeoutHelper.RemainingTime(), PrepareInnerAsyncCompletion(notifyCompletionCallback), this);
if (result == null)
{
throw FxTrace.Exception.AsError(new InvalidOperationException(SR.WorkflowCompletionAsyncResultCannotBeNull));
}
}
}
finally
{
if (result == null && this.context != null)
{
this.context.Abort();
}
}
return SyncContinue(result);
}
else
{
return CompleteContext();
}
}
bool Save()
{
if (this.pipeline != null)
{
IAsyncResult result = null;
try
{
if (this.context == null)
{
this.context = new WorkflowPersistenceContext(this.instance, this.pipeline.IsSaveTransactionRequired || this.isCompletionTransactionRequired,
this.dependentTransaction, this.instance.persistTimeout);
}
this.instance.persistencePipelineInUse = this.pipeline;
Thread.MemoryBarrier();
if (this.instance.abortingExtensions)
{
throw FxTrace.Exception.AsError(new OperationCanceledException(SR.DefaultAbortReason));
}
using (PrepareTransactionalCall(this.context.PublicTransaction))
{
result = this.pipeline.BeginSave(this.timeoutHelper.RemainingTime(), PrepareInnerAsyncCompletion(savedCallback), this);
}
}
finally
{
if (result == null)
{
this.instance.persistencePipelineInUse = null;
if (this.context != null)
{
this.context.Abort();
}
}
}
return SyncContinue(result);
}
else
{
return NotifyCompletion();
}
}
bool Persist()
{
IAsyncResult result = null;
try
{
if (this.operation == PersistenceOperation.Delete)
{
this.saveStatus = SaveStatus.Completed;
}
if (this.context == null)
{
this.context = new WorkflowPersistenceContext(this.instance, (this.pipeline != null && this.pipeline.IsSaveTransactionRequired) || this.isCompletionTransactionRequired,
this.dependentTransaction, this.instance.persistTimeout);
}
using (PrepareTransactionalCall(this.context.PublicTransaction))
{
result = this.instance.persistenceContext.BeginSave(this.data, this.saveStatus, this.instance.persistTimeout, PrepareInnerAsyncCompletion(persistedCallback), this);
}
}
catch (InstancePersistenceException)
{
this.updateState = false;
throw;
}
finally
{
if (result == null && this.context != null)
{
this.context.Abort();
}
}
return SyncContinue(result);
}
