Package jakarta.servlet.jsp

Interface JspApplicationContext

public interface JspApplicationContext

Stores application-scoped information for the JSP container.

Since:

JSP 2.1

Method Summary

Modifier and Type	Method	Description
void	addELContextListener(jakarta.el.ELContextListener listener)	Registers an ELContextListener that will be notified whenever a new ELContext is created.
void	addELResolver(jakarta.el.ELResolver resolver)	Adds an ELResolver to the chain of EL variable and property management within JSP pages and Tag files.
jakarta.el.ExpressionFactory	getExpressionFactory()	Returns the JSP container's ExpressionFactory implementation for EL use.

Method Details

addELContextListener

void addELContextListener(jakarta.el.ELContextListener listener)

Registers an ELContextListener that will be notified whenever a new ELContext is created.

At the very least, any ELContext instantiated will have reference to the JspContext under JspContext.class.

Parameters:

listener - The listener to add

addELResolver

void addELResolver(jakarta.el.ELResolver resolver)

Adds an ELResolver to the chain of EL variable and property management within JSP pages and Tag files.

JSP has a default set of ELResolvers to chain for all EL evaluation:

• ImplicitObjectELResolver
• ELResolver instances registered with this method
• MapELResolver
• ListELResolver
• ArrayELResolver
• BeanELResolver
• ScopedAttributeELResolver

Parameters:

resolver - an additional resolver

Throws:

IllegalStateException - if called after the application's ServletContextListeners have been initialized.

getExpressionFactory

jakarta.el.ExpressionFactory getExpressionFactory()

Returns the JSP container's ExpressionFactory implementation for EL use.

Returns:

an ExpressionFactory implementation