RequestXelResolver (zk 10.0.0 API)

java.lang.Object
- org.zkoss.web.servlet.xel.RequestXelResolver

All Implemented Interfaces:

VariableResolver
```
public abstract class RequestXelResolver
extends java.lang.Object
implements VariableResolver
```
A XEL variable resolver that is based on Servlet request, response, and EL.

Since:

3.0.0

Author:

tomyeh

Constructor Summary

Constructors
Constructor	Description
`RequestXelResolver(javax.servlet.ServletContext ctx, javax.servlet.ServletRequest request)`
`RequestXelResolver(javax.servlet.ServletContext ctx, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response)`	Request-based resolver.
`RequestXelResolver(javax.servlet.ServletRequest request)`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract ExpressionFactory`	`getExpressionFactory()`	Returns the expression factory (never null).
`PageContext`	`getPageContext()`	Returns the page context.
`javax.servlet.ServletRequest`	`getRequest()`	Returns the request.
`javax.servlet.ServletResponse`	`getResponse()`	Returns the response.
`javax.servlet.ServletContext`	`getServletContext()`	Returns the context.
`java.lang.Object`	`resolveVariable(java.lang.String name)`	Resolves the specified variable.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RequestXelResolver
```
public RequestXelResolver(javax.servlet.ServletContext ctx,
                          javax.servlet.ServletRequest request,
                          javax.servlet.ServletResponse response)
```
Request-based resolver.

Parameters:

ctx - the context; which might be null

request - the request. It cannot be null.

response - the response, which might bell.

Throws:

java.lang.IllegalArgumentException - if request is null.

RequestXelResolver

public RequestXelResolver(javax.servlet.ServletContext ctx,
                          javax.servlet.ServletRequest request)

RequestXelResolver

public RequestXelResolver(javax.servlet.ServletRequest request)

Method Detail
- getExpressionFactory
```
public abstract ExpressionFactory getExpressionFactory()
```
  Returns the expression factory (never null).
  The deriving class must override it.
- getPageContext
```
public PageContext getPageContext()
```
  Returns the page context.
- getRequest
```
public javax.servlet.ServletRequest getRequest()
```
  Returns the request.
- getResponse
```
public javax.servlet.ServletResponse getResponse()
```
  Returns the response.
- getServletContext
```
public javax.servlet.ServletContext getServletContext()
```
  Returns the context.
- resolveVariable
```
public java.lang.Object resolveVariable(java.lang.String name)
                                 throws XelException
```
  Description copied from interface: VariableResolver
  
  Resolves the specified variable.
  
  Specified by:
  
  resolveVariable in interface VariableResolver
  
  Parameters:
  
  name - the name of the variable to resolve
  
  Throws:
  
  XelException