程序包 cn.taketoday.web.bind.support

接口 SessionAttributeStore

所有已知实现类:

DefaultSessionAttributeStore

public interface SessionAttributeStore

Strategy interface for storing model attributes in a backend session.

从以下版本开始:

4.0 2022/4/8 23:19

作者:

Juergen Hoeller, Harry Yang

另请参阅:

• SessionAttributes

方法概要

修饰符和类型	方法	说明
void	cleanupAttribute(RequestContext request, String attributeName)	Clean up the specified attribute in the backend session.
Object	retrieveAttribute(RequestContext request, String attributeName)	Retrieve the specified attribute from the backend session.
void	storeAttribute(RequestContext request, String attributeName, Object attributeValue)	Store the supplied attribute in the backend session.

方法详细资料

storeAttribute

void storeAttribute(RequestContext request,
 String attributeName,
 Object attributeValue)

Store the supplied attribute in the backend session.

Can be called for new attributes as well as for existing attributes. In the latter case, this signals that the attribute value may have been modified.

参数:

request - the current request

attributeName - the name of the attribute

attributeValue - the attribute value to store

retrieveAttribute

@Nullable
Object retrieveAttribute(RequestContext request,
 String attributeName)

Retrieve the specified attribute from the backend session.

This will typically be called with the expectation that the attribute is already present, with an exception to be thrown if this method returns null.

参数:

request - the current request

attributeName - the name of the attribute

返回:

the current attribute value, or null if none

cleanupAttribute

void cleanupAttribute(RequestContext request,
 String attributeName)

Clean up the specified attribute in the backend session.

Indicates that the attribute name will not be used anymore.

参数:

request - the current request

attributeName - the name of the attribute