org.zkoss.web.servlet.xel
Class RequestXelResolver

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

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

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