eve::state::IStateQuery类 参考

Read-only world-state boundary owned by consumers such as Dialogue. 更多...

#include <StateAccess.h>

类 eve::state::IStateQuery 继承关系图:

Public 成员函数
virtual	~IStateQuery ()=default
	I state query.
virtual std::optional< eve::Value >	value (std::string_view subject, std::string_view key) const =0
	Query a generic world value.
virtual std::optional< bool >	hasTag (std::string_view subject, std::string_view tag) const =0
	Query exact tag membership.
virtual std::optional< eve::Value >	attribute (std::string_view subject, std::string_view key) const =0
	Query a numeric or structured attribute.
virtual std::optional< eve::Value >	resource (std::string_view subject, std::string_view key) const =0
	Query a resource value or marker.
virtual std::optional< eve::Value >	state (std::string_view subject, std::string_view key) const =0
	Query a persistent/world state value.
virtual std::optional< bool >	authority (std::string_view subject, std::string_view scope) const =0
	Query read-only authority for a scope.

静态 Public 属性
static constexpr const char *	capabilityName = "eve.state.IStateQuery"

详细描述

Read-only world-state boundary owned by consumers such as Dialogue.

Implementations are synchronous and must not retain query arguments or invoke unknown callbacks while holding a lock. nullopt means that this provider does not own the requested domain/key. A returned false is a known negative answer. The provider is borrowed by the caller and must outlive the query context; it is not retained by the capability registry after revoke.

在文件 StateAccess.h 第 79 行定义.

构造及析构函数说明

~IStateQuery()

virtual eve::state::IStateQuery::~IStateQuery ( )

virtualdefault

I state query.

成员函数说明

attribute()

virtual std::optional< eve::Value > eve::state::IStateQuery::attribute ( std::string_view  subject, std::string_view  key  ) const

pure virtual

Query a numeric or structured attribute.

在 eve::attributes::AttributeSetStateAdapter, eve::statepatch::StatePatchStateAdapter , 以及 eve::tags::TagStoreStateAdapter 内被实现.

被这些函数引用 eve::dialogue::StateEvaluationContext::attribute().

authority()

virtual std::optional< bool > eve::state::IStateQuery::authority ( std::string_view  subject, std::string_view  scope  ) const

pure virtual

Query read-only authority for a scope.

在 eve::attributes::AttributeSetStateAdapter, eve::statepatch::StatePatchStateAdapter , 以及 eve::tags::TagStoreStateAdapter 内被实现.

被这些函数引用 eve::dialogue::StateEvaluationContext::authority().

hasTag()

virtual std::optional< bool > eve::state::IStateQuery::hasTag ( std::string_view  subject, std::string_view  tag  ) const

pure virtual

Query exact tag membership.

在 eve::statepatch::StatePatchStateAdapter, eve::tags::TagStoreStateAdapter , 以及 eve::attributes::AttributeSetStateAdapter 内被实现.

被这些函数引用 eve::dialogue::StateEvaluationContext::hasTag().

resource()

virtual std::optional< eve::Value > eve::state::IStateQuery::resource ( std::string_view  subject, std::string_view  key  ) const

pure virtual

Query a resource value or marker.

在 eve::attributes::AttributeSetStateAdapter, eve::statepatch::StatePatchStateAdapter , 以及 eve::tags::TagStoreStateAdapter 内被实现.

被这些函数引用 eve::dialogue::StateEvaluationContext::resource().

state()

virtual std::optional< eve::Value > eve::state::IStateQuery::state ( std::string_view  subject, std::string_view  key  ) const

pure virtual

Query a persistent/world state value.

在 eve::attributes::AttributeSetStateAdapter, eve::statepatch::StatePatchStateAdapter , 以及 eve::tags::TagStoreStateAdapter 内被实现.

被这些函数引用 eve::dialogue::StateEvaluationContext::state().

value()

virtual std::optional< eve::Value > eve::state::IStateQuery::value ( std::string_view  subject, std::string_view  key  ) const

pure virtual

Query a generic world value.

在 eve::attributes::AttributeSetStateAdapter, eve::statepatch::StatePatchStateAdapter , 以及 eve::tags::TagStoreStateAdapter 内被实现.

被这些函数引用 eve::dialogue::StateEvaluationContext::value().

类成员变量说明

capabilityName

constexpr const char* eve::state::IStateQuery::capabilityName = "eve.state.IStateQuery"

staticconstexpr

在文件 StateAccess.h 第 81 行定义.

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该类的文档由以下文件生成:

• src/engine/common/StateAccess.h