eve::settlement::PreparedApply类 参考

Prepared domain mutation used to make settlement application atomic. 更多...

#include <Settlement.h>

Public 类型
using	CommitFunction = std::function< eve::Result< void >()>
using	RollbackFunction = std::function< void()>

Public 成员函数
	PreparedApply ()=default
	Construct an empty invalid mutation.
	PreparedApply (CommitFunction commit, RollbackFunction rollback)
	Construct a mutation from commit and rollback callbacks.
	PreparedApply (const PreparedApply &)=delete
PreparedApply &	operator= (const PreparedApply &)=delete
	PreparedApply (PreparedApply &&other) noexcept
	Prepared apply.
PreparedApply &	operator= (PreparedApply &&other) noexcept
	Operator =.
	~PreparedApply ()
	Prepared apply.
bool	isValid () const noexcept
	Return whether both transaction callbacks are available.
eve::Result< void >	commit ()
	Publish the staged candidate; failure must leave state unchanged.
void	rollback () noexcept
	Restore or discard the staged candidate; safe to call repeatedly.
bool	isCommitted () const noexcept
	Return whether commit has completed successfully.

详细描述

Prepared domain mutation used to make settlement application atomic.

A policy creates this object from a candidate copy or equivalent private transaction. commit must make the candidate observable atomically; the supplied rollback callback must restore the previous state if a later event append fails. The object is synchronous and must not retain temporary request/context references.

在文件 Settlement.h 第 281 行定义.

成员类型定义说明

CommitFunction

using eve::settlement::PreparedApply::CommitFunction = std::function<eve::Result<void>()>

在文件 Settlement.h 第 283 行定义.

RollbackFunction

using eve::settlement::PreparedApply::RollbackFunction = std::function<void()>

在文件 Settlement.h 第 284 行定义.

构造及析构函数说明

PreparedApply() [1/4]

eve::settlement::PreparedApply::PreparedApply ( )

default

Construct an empty invalid mutation.

PreparedApply() [2/4]

eve::settlement::PreparedApply::PreparedApply	(	CommitFunction	commit,
		RollbackFunction	rollback
	)

Construct a mutation from commit and rollback callbacks.

在文件 Settlement.cpp 第 288 行定义.

PreparedApply() [3/4]

eve::settlement::PreparedApply::PreparedApply ( const PreparedApply &  )

delete

PreparedApply() [4/4]

eve::settlement::PreparedApply::PreparedApply ( PreparedApply &&  other )

noexcept

Prepared apply.

在文件 Settlement.cpp 第 291 行定义.

~PreparedApply()

eve::settlement::PreparedApply::~PreparedApply

(

)

Prepared apply.

在文件 Settlement.cpp 第 316 行定义.

引用了 rollback().

成员函数说明

commit()

eve::Result< void > eve::settlement::PreparedApply::commit

(

)

Publish the staged candidate; failure must leave state unchanged.

在文件 Settlement.cpp 第 326 行定义.

引用了 eve::Applied, eve::Diagnostic::error(), eve::Failed, eve::Result< T >::failure(), eve::InvariantViolation, isValid() , 以及 status.

isCommitted()

bool eve::settlement::PreparedApply::isCommitted ( ) const

inlinenoexcept

Return whether commit has completed successfully.

在文件 Settlement.h 第 316 行定义.

isValid()

bool eve::settlement::PreparedApply::isValid ( ) const

noexcept

Return whether both transaction callbacks are available.

在文件 Settlement.cpp 第 322 行定义.

被这些函数引用 commit().

operator=() [1/2]

PreparedApply & eve::settlement::PreparedApply::operator= ( const PreparedApply &  )

delete

operator=() [2/2]

PreparedApply & eve::settlement::PreparedApply::operator= ( PreparedApply &&  other )

noexcept

Operator =.

在文件 Settlement.cpp 第 302 行定义.

rollback()

void eve::settlement::PreparedApply::rollback ( )

noexcept

Restore or discard the staged candidate; safe to call repeatedly.

备注

The rollback callback is a noexcept contract. If it throws, the implementation terminates because reporting an ordinary failure would falsely promise that state was restored.

在文件 Settlement.cpp 第 350 行定义.

被这些函数引用 ~PreparedApply().

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该类的文档由以下文件生成:

• src/modules/settlement/Settlement.h
• src/modules/settlement/Settlement.cpp