JspApplicationContext (JSP 3.0 API Documentation - Apache Tomcat 10.0.27)

```
public interface JspApplicationContext
```
Stores application-scoped information for the JSP container.

Since:

JSP 2.1

Method Summary

All Methods Instance Methods Abstract Methods
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 Detail
  - 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:
    
    java.lang.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