org.apache.jasper.runtime
Class PageContextImpl
java.lang.Object
javax.servlet.jsp.JspContext
javax.servlet.jsp.PageContext
org.apache.jasper.runtime.PageContextImpl
- All Implemented Interfaces:
- javax.servlet.jsp.el.VariableResolver
public class PageContextImpl
- extends javax.servlet.jsp.PageContext
- implements javax.servlet.jsp.el.VariableResolver
Implementation of the PageContext class from the JSP spec.
Also doubles as a VariableResolver for the EL.
- Author:
- Anil K. Vijendran, Larry Cable, Hans Bergsten, Pierre Delisle, Mark Roth, Jan Luehe
Fields inherited from class javax.servlet.jsp.PageContext |
APPLICATION, APPLICATION_SCOPE, CONFIG, EXCEPTION, OUT, PAGE, PAGE_SCOPE, PAGECONTEXT, REQUEST, REQUEST_SCOPE, RESPONSE, SESSION, SESSION_SCOPE |
Method Summary |
java.lang.Object |
findAttribute(java.lang.String name)
|
void |
forward(java.lang.String relativeUrlPath)
|
java.lang.Object |
getAttribute(java.lang.String name)
|
java.lang.Object |
getAttribute(java.lang.String name,
int scope)
|
java.util.Enumeration |
getAttributeNamesInScope(int scope)
|
int |
getAttributesScope(java.lang.String name)
|
java.lang.Exception |
getException()
|
javax.servlet.jsp.el.ExpressionEvaluator |
getExpressionEvaluator()
Provides programmatic access to the ExpressionEvaluator. |
javax.servlet.jsp.JspWriter |
getOut()
|
java.lang.Object |
getPage()
|
javax.servlet.ServletRequest |
getRequest()
|
javax.servlet.ServletResponse |
getResponse()
|
javax.servlet.Servlet |
getServlet()
|
javax.servlet.ServletConfig |
getServletConfig()
|
javax.servlet.ServletContext |
getServletContext()
|
javax.servlet.http.HttpSession |
getSession()
|
javax.servlet.jsp.el.VariableResolver |
getVariableResolver()
|
void |
handlePageException(java.lang.Exception ex)
|
void |
handlePageException(java.lang.Throwable t)
|
void |
include(java.lang.String relativeUrlPath)
|
void |
include(java.lang.String relativeUrlPath,
boolean flush)
|
void |
initialize(javax.servlet.Servlet servlet,
javax.servlet.ServletRequest request,
javax.servlet.ServletResponse response,
java.lang.String errorPageURL,
boolean needsSession,
int bufferSize,
boolean autoFlush)
|
javax.servlet.jsp.JspWriter |
popBody()
|
static java.lang.Object |
proprietaryEvaluate(java.lang.String expression,
java.lang.Class expectedType,
javax.servlet.jsp.PageContext pageContext,
ProtectedFunctionMapper functionMap,
boolean escape)
Proprietary method to evaluate EL expressions. |
javax.servlet.jsp.tagext.BodyContent |
pushBody()
|
javax.servlet.jsp.JspWriter |
pushBody(java.io.Writer writer)
|
void |
release()
|
void |
removeAttribute(java.lang.String name)
|
void |
removeAttribute(java.lang.String name,
int scope)
|
java.lang.Object |
resolveVariable(java.lang.String pName)
VariableResolver interface |
void |
setAttribute(java.lang.String name,
java.lang.Object attribute)
|
void |
setAttribute(java.lang.String name,
java.lang.Object o,
int scope)
|
Methods inherited from class javax.servlet.jsp.PageContext |
getErrorData |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
initialize
public void initialize(javax.servlet.Servlet servlet,
javax.servlet.ServletRequest request,
javax.servlet.ServletResponse response,
java.lang.String errorPageURL,
boolean needsSession,
int bufferSize,
boolean autoFlush)
throws java.io.IOException
- Specified by:
initialize
in class javax.servlet.jsp.PageContext
- Throws:
java.io.IOException
release
public void release()
- Specified by:
release
in class javax.servlet.jsp.PageContext
getAttribute
public java.lang.Object getAttribute(java.lang.String name)
- Specified by:
getAttribute
in class javax.servlet.jsp.JspContext
getAttribute
public java.lang.Object getAttribute(java.lang.String name,
int scope)
- Specified by:
getAttribute
in class javax.servlet.jsp.JspContext
setAttribute
public void setAttribute(java.lang.String name,
java.lang.Object attribute)
- Specified by:
setAttribute
in class javax.servlet.jsp.JspContext
setAttribute
public void setAttribute(java.lang.String name,
java.lang.Object o,
int scope)
- Specified by:
setAttribute
in class javax.servlet.jsp.JspContext
removeAttribute
public void removeAttribute(java.lang.String name,
int scope)
- Specified by:
removeAttribute
in class javax.servlet.jsp.JspContext
getAttributesScope
public int getAttributesScope(java.lang.String name)
- Specified by:
getAttributesScope
in class javax.servlet.jsp.JspContext
findAttribute
public java.lang.Object findAttribute(java.lang.String name)
- Specified by:
findAttribute
in class javax.servlet.jsp.JspContext
getAttributeNamesInScope
public java.util.Enumeration getAttributeNamesInScope(int scope)
- Specified by:
getAttributeNamesInScope
in class javax.servlet.jsp.JspContext
removeAttribute
public void removeAttribute(java.lang.String name)
- Specified by:
removeAttribute
in class javax.servlet.jsp.JspContext
getOut
public javax.servlet.jsp.JspWriter getOut()
- Specified by:
getOut
in class javax.servlet.jsp.JspContext
getSession
public javax.servlet.http.HttpSession getSession()
- Specified by:
getSession
in class javax.servlet.jsp.PageContext
getServlet
public javax.servlet.Servlet getServlet()
getServletConfig
public javax.servlet.ServletConfig getServletConfig()
- Specified by:
getServletConfig
in class javax.servlet.jsp.PageContext
getServletContext
public javax.servlet.ServletContext getServletContext()
- Specified by:
getServletContext
in class javax.servlet.jsp.PageContext
getRequest
public javax.servlet.ServletRequest getRequest()
- Specified by:
getRequest
in class javax.servlet.jsp.PageContext
getResponse
public javax.servlet.ServletResponse getResponse()
- Specified by:
getResponse
in class javax.servlet.jsp.PageContext
getException
public java.lang.Exception getException()
- Specified by:
getException
in class javax.servlet.jsp.PageContext
getPage
public java.lang.Object getPage()
- Specified by:
getPage
in class javax.servlet.jsp.PageContext
include
public void include(java.lang.String relativeUrlPath)
throws javax.servlet.ServletException,
java.io.IOException
- Specified by:
include
in class javax.servlet.jsp.PageContext
- Throws:
javax.servlet.ServletException
java.io.IOException
include
public void include(java.lang.String relativeUrlPath,
boolean flush)
throws javax.servlet.ServletException,
java.io.IOException
- Specified by:
include
in class javax.servlet.jsp.PageContext
- Throws:
javax.servlet.ServletException
java.io.IOException
getVariableResolver
public javax.servlet.jsp.el.VariableResolver getVariableResolver()
- Specified by:
getVariableResolver
in class javax.servlet.jsp.JspContext
forward
public void forward(java.lang.String relativeUrlPath)
throws javax.servlet.ServletException,
java.io.IOException
- Specified by:
forward
in class javax.servlet.jsp.PageContext
- Throws:
javax.servlet.ServletException
java.io.IOException
pushBody
public javax.servlet.jsp.tagext.BodyContent pushBody()
- Overrides:
pushBody
in class javax.servlet.jsp.PageContext
pushBody
public javax.servlet.jsp.JspWriter pushBody(java.io.Writer writer)
- Overrides:
pushBody
in class javax.servlet.jsp.JspContext
popBody
public javax.servlet.jsp.JspWriter popBody()
- Overrides:
popBody
in class javax.servlet.jsp.JspContext
getExpressionEvaluator
public javax.servlet.jsp.el.ExpressionEvaluator getExpressionEvaluator()
- Provides programmatic access to the ExpressionEvaluator.
The JSP Container must return a valid instance of an
ExpressionEvaluator that can parse EL expressions.
- Specified by:
getExpressionEvaluator
in class javax.servlet.jsp.JspContext
handlePageException
public void handlePageException(java.lang.Exception ex)
throws java.io.IOException,
javax.servlet.ServletException
- Specified by:
handlePageException
in class javax.servlet.jsp.PageContext
- Throws:
java.io.IOException
javax.servlet.ServletException
handlePageException
public void handlePageException(java.lang.Throwable t)
throws java.io.IOException,
javax.servlet.ServletException
- Specified by:
handlePageException
in class javax.servlet.jsp.PageContext
- Throws:
java.io.IOException
javax.servlet.ServletException
resolveVariable
public java.lang.Object resolveVariable(java.lang.String pName)
throws javax.servlet.jsp.el.ELException
- VariableResolver interface
- Specified by:
resolveVariable
in interface javax.servlet.jsp.el.VariableResolver
- Throws:
javax.servlet.jsp.el.ELException
proprietaryEvaluate
public static java.lang.Object proprietaryEvaluate(java.lang.String expression,
java.lang.Class expectedType,
javax.servlet.jsp.PageContext pageContext,
ProtectedFunctionMapper functionMap,
boolean escape)
throws javax.servlet.jsp.el.ELException
- Proprietary method to evaluate EL expressions.
XXX - This method should go away once the EL interpreter moves
out of JSTL and into its own project. For now, this is necessary
because the standard machinery is too slow.
- Parameters:
expression
- The expression to be evaluatedexpectedType
- The expected resulting typepageContext
- The page contextfunctionMap
- Maps prefix and name to Method
- Returns:
- The result of the evaluation
- Throws:
javax.servlet.jsp.el.ELException
Copyright ? 2000 Apache Software Foundation. All Rights Reserved.