eve::dialogue::DialogueStateMutationParticipant类 参考

Transaction participant that delegates an atomic state mutation. 更多...

#include <DialoguePayment.h>

类 eve::dialogue::DialogueStateMutationParticipant 继承关系图:

Public 成员函数
	DialogueStateMutationParticipant (eve::IStateMutation &provider, std::span< const eve::StateMutation > mutations)
	Bind a copied mutation set to one borrowed mutation provider.
	DialogueStateMutationParticipant (const DialogueStateMutationParticipant &)=delete
DialogueStateMutationParticipant &	operator= (const DialogueStateMutationParticipant &)=delete
	DialogueStateMutationParticipant (DialogueStateMutationParticipant &&)=delete
DialogueStateMutationParticipant &	operator= (DialogueStateMutationParticipant &&)=delete
	~DialogueStateMutationParticipant () override=default
	Releases DialogueStateMutationParticipant resources.
std::string_view	name () const noexcept override
	Stable diagnostic name.
eve::Result< void >	prepare (const eve::transaction::TransactionContext &context) override
	Validate and stage local changes for the transaction.
eve::Result< void >	commit (const eve::transaction::TransactionContext &context) override
	Publish this participant's staged changes.
eve::Result< void >	rollback (const eve::transaction::TransactionContext &context) override
	Discard a prepared but not committed stage.
eve::Result< void >	compensate (const eve::transaction::TransactionContext &context) override
	Undo an already committed external effect by compensation.
Public 成员函数 继承自 eve::transaction::ITransactionParticipant
virtual	~ITransactionParticipant ()=default
	Releases ITransactionParticipant resources.

详细描述

Transaction participant that delegates an atomic state mutation.

The provider is borrowed. prepare performs no observable mutation and commit calls the provider's all-or-nothing apply operation. This participant must be the final state-writing participant in a composed payment because generic IStateMutation has no inverse operation; account participants are therefore committed before it and compensate on failure.

在文件 DialoguePayment.h 第 81 行定义.

构造及析构函数说明

DialogueStateMutationParticipant() [1/3]

eve::dialogue::DialogueStateMutationParticipant::DialogueStateMutationParticipant	(	eve::IStateMutation &	provider,
		std::span< const eve::StateMutation >	mutations
	)

Bind a copied mutation set to one borrowed mutation provider.

参数

provider	Authoritative StatePatch-compatible mutation provider.
mutations	Persistent or volatile mutations owned by this participant.

在文件 DialoguePayment.cpp 第 121 行定义.

DialogueStateMutationParticipant() [2/3]

eve::dialogue::DialogueStateMutationParticipant::DialogueStateMutationParticipant ( const DialogueStateMutationParticipant &  )

delete

DialogueStateMutationParticipant() [3/3]

eve::dialogue::DialogueStateMutationParticipant::DialogueStateMutationParticipant ( DialogueStateMutationParticipant &&  )

delete

~DialogueStateMutationParticipant()

eve::dialogue::DialogueStateMutationParticipant::~DialogueStateMutationParticipant ( )

overridedefault

Releases DialogueStateMutationParticipant resources.

成员函数说明

commit()

eve::Result< void > eve::dialogue::DialogueStateMutationParticipant::commit ( const eve::transaction::TransactionContext &  context )

overridevirtual

Publish this participant's staged changes.

参数

context

Shared borrowed transaction context.

返回

Success when the participant is committed, otherwise diagnostics.

Commits .

实现了 eve::transaction::ITransactionParticipant.

在文件 DialoguePayment.cpp 第 135 行定义.

引用了 eve::Applied, eve::state::IStateMutation::apply(), eve::Conflict, context, eve::Diagnostic::error(), eve::Result< T >::failure(), eve::Status::success(), eve::Result< T >::success() , 以及 eve::state::MutationContext::transactionId.

compensate()

eve::Result< void > eve::dialogue::DialogueStateMutationParticipant::compensate ( const eve::transaction::TransactionContext &  context )

overridevirtual

Undo an already committed external effect by compensation.

参数

context

Shared borrowed transaction context.

返回

Success when compensation completes, Unsupported when impossible, or another failure with diagnostics.

Compensate.

实现了 eve::transaction::ITransactionParticipant.

在文件 DialoguePayment.cpp 第 154 行定义.

引用了 eve::Diagnostic::error(), eve::Result< T >::failure() , 以及 eve::Unsupported.

name()

std::string_view eve::dialogue::DialogueStateMutationParticipant::name ( ) const

inlineoverridevirtualnoexcept

Stable diagnostic name.

重载 eve::transaction::ITransactionParticipant .

在文件 DialoguePayment.h 第 98 行定义.

operator=() [1/2]

DialogueStateMutationParticipant & eve::dialogue::DialogueStateMutationParticipant::operator= ( const DialogueStateMutationParticipant &  )

delete

operator=() [2/2]

DialogueStateMutationParticipant & eve::dialogue::DialogueStateMutationParticipant::operator= ( DialogueStateMutationParticipant &&  )

delete

prepare()

eve::Result< void > eve::dialogue::DialogueStateMutationParticipant::prepare ( const eve::transaction::TransactionContext &  context )

overridevirtual

Validate and stage local changes for the transaction.

参数

context

Shared borrowed transaction context.

返回

Success when this participant is prepared, otherwise diagnostics.

Prepare.

实现了 eve::transaction::ITransactionParticipant.

在文件 DialoguePayment.cpp 第 125 行定义.

引用了 eve::Applied, eve::Conflict, context, eve::Diagnostic::error(), eve::Result< T >::failure(), eve::InvalidArgument, eve::Status::success() , 以及 eve::Result< T >::success().

rollback()

eve::Result< void > eve::dialogue::DialogueStateMutationParticipant::rollback ( const eve::transaction::TransactionContext &  context )

overridevirtual

Discard a prepared but not committed stage.

参数

context

Shared borrowed transaction context.

返回

Success when provisional state is discarded, otherwise diagnostics.

Rollback.

实现了 eve::transaction::ITransactionParticipant.

在文件 DialoguePayment.cpp 第 146 行定义.

引用了 eve::Applied, eve::Conflict, eve::Diagnostic::error(), eve::Result< T >::failure(), eve::Status::success() , 以及 eve::Result< T >::success().

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该类的文档由以下文件生成:

• src/modules/dialogue/DialoguePayment.h
• src/modules/dialogue/DialoguePayment.cpp