Class PageContextImpl


  • public class PageContextImpl
    extends javax.servlet.jsp.PageContext
    Implementation of the PageContext class from the JSP spec.
    Author:
    Anil K. Vijendran, Larry Cable, Hans Bergsten, Pierre Delisle, Mark Roth, Jan Luehe, Kin-man Chung
    • Method Detail

      • initialize

        public void initialize​(javax.servlet.Servlet servlet,
                               javax.servlet.ServletRequest request,
                               javax.servlet.ServletResponse response,
                               String errorPageURL,
                               boolean needsSession,
                               int bufferSize,
                               boolean autoFlush)
                        throws IOException
        Specified by:
        initialize in class javax.servlet.jsp.PageContext
        Throws:
        IOException
      • release

        public void release()
        Specified by:
        release in class javax.servlet.jsp.PageContext
      • getAttribute

        public Object getAttribute​(String name)
        Specified by:
        getAttribute in class javax.servlet.jsp.JspContext
      • getAttribute

        public Object getAttribute​(String name,
                                   int scope)
        Specified by:
        getAttribute in class javax.servlet.jsp.JspContext
      • setAttribute

        public void setAttribute​(String name,
                                 Object attribute)
        Specified by:
        setAttribute in class javax.servlet.jsp.JspContext
      • setAttribute

        public void setAttribute​(String name,
                                 Object o,
                                 int scope)
        Specified by:
        setAttribute in class javax.servlet.jsp.JspContext
      • removeAttribute

        public void removeAttribute​(String name,
                                    int scope)
        Specified by:
        removeAttribute in class javax.servlet.jsp.JspContext
      • getAttributesScope

        public int getAttributesScope​(String name)
        Specified by:
        getAttributesScope in class javax.servlet.jsp.JspContext
      • findAttribute

        public Object findAttribute​(String name)
        Specified by:
        findAttribute in class javax.servlet.jsp.JspContext
      • getAttributeNamesInScope

        public Enumeration<String> getAttributeNamesInScope​(int scope)
        Specified by:
        getAttributeNamesInScope in class javax.servlet.jsp.JspContext
      • removeAttribute

        public void removeAttribute​(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 Exception getException()
        Returns the exception associated with this page context, if any. Added wrapping for Throwables to avoid ClassCastException (see Bugzilla 31171 for details).
        Specified by:
        getException in class javax.servlet.jsp.PageContext
        Returns:
        The Exception associated with this page context, if any.
      • getPage

        public Object getPage()
        Specified by:
        getPage in class javax.servlet.jsp.PageContext
      • include

        public void include​(String relativeUrlPath)
                     throws javax.servlet.ServletException,
                            IOException
        Specified by:
        include in class javax.servlet.jsp.PageContext
        Throws:
        javax.servlet.ServletException
        IOException
      • include

        public void include​(String relativeUrlPath,
                            boolean flush)
                     throws javax.servlet.ServletException,
                            IOException
        Specified by:
        include in class javax.servlet.jsp.PageContext
        Throws:
        javax.servlet.ServletException
        IOException
      • getVariableResolver

        public javax.servlet.jsp.el.VariableResolver getVariableResolver()
        Specified by:
        getVariableResolver in class javax.servlet.jsp.JspContext
      • getELContext

        public javax.el.ELContext getELContext()
        Specified by:
        getELContext in class javax.servlet.jsp.JspContext
      • forward

        public void forward​(String relativeUrlPath)
                     throws javax.servlet.ServletException,
                            IOException
        Specified by:
        forward in class javax.servlet.jsp.PageContext
        Throws:
        javax.servlet.ServletException
        IOException
      • pushBody

        public javax.servlet.jsp.tagext.BodyContent pushBody()
        Overrides:
        pushBody in class javax.servlet.jsp.PageContext
      • pushBody

        public javax.servlet.jsp.JspWriter pushBody​(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​(Exception ex)
                                 throws IOException,
                                        javax.servlet.ServletException
        Specified by:
        handlePageException in class javax.servlet.jsp.PageContext
        Throws:
        IOException
        javax.servlet.ServletException
      • handlePageException

        public void handlePageException​(Throwable t)
                                 throws IOException,
                                        javax.servlet.ServletException
        Specified by:
        handlePageException in class javax.servlet.jsp.PageContext
        Throws:
        IOException
        javax.servlet.ServletException
      • evaluateExpression

        public static Object evaluateExpression​(String expression,
                                                Class expectedType,
                                                javax.servlet.jsp.PageContext pageContext,
                                                ProtectedFunctionMapper functionMap)
                                         throws javax.el.ELException
        Evaluates an EL expression
        Parameters:
        expression - The expression to be evaluated
        expectedType - The expected resulting type
        pageContext - The page context
        functionMap - Maps prefix and name to Method
        Returns:
        The result of the evaluation
        Throws:
        javax.el.ELException
      • getValueExpression

        public static javax.el.ValueExpression getValueExpression​(String expression,
                                                                  javax.servlet.jsp.PageContext pageContext,
                                                                  Class expectedType,
                                                                  javax.el.FunctionMapper functionMap)
      • getMethodExpression

        public static javax.el.MethodExpression getMethodExpression​(String expression,
                                                                    javax.servlet.jsp.PageContext pageContext,
                                                                    javax.el.FunctionMapper functionMap,
                                                                    Class expectedType,
                                                                    Class[] paramTypes)
      • setValueVariable

        public static void setValueVariable​(javax.servlet.jsp.PageContext pageContext,
                                            String variable,
                                            javax.el.ValueExpression expression)
      • setMethodVariable

        public static void setMethodVariable​(javax.servlet.jsp.PageContext pageContext,
                                             String variable,
                                             javax.el.MethodExpression expression)