org.apache.jasper.runtime
Class PageContextImpl
java.lang.Object
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+--javax.servlet.jsp.JspContext
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+--javax.servlet.jsp.PageContext
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+--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
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 |
protected JspWriterImpl |
_createOut(int bufferSize,
boolean autoFlush)
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java.lang.Object |
findAttribute(java.lang.String name)
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void |
forward(java.lang.String relativeUrlPath)
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java.lang.Object |
getAttribute(java.lang.String name)
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java.lang.Object |
getAttribute(java.lang.String name,
int scope)
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java.util.Enumeration |
getAttributeNamesInScope(int scope)
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int |
getAttributesScope(java.lang.String name)
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java.lang.Exception |
getException()
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javax.servlet.jsp.el.ExpressionEvaluator |
getExpressionEvaluator()
Provides programmatic access to the ExpressionEvaluator.
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javax.servlet.jsp.JspWriter |
getOut()
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java.lang.Object |
getPage()
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javax.servlet.ServletRequest |
getRequest()
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javax.servlet.ServletResponse |
getResponse()
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javax.servlet.Servlet |
getServlet()
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javax.servlet.ServletConfig |
getServletConfig()
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javax.servlet.ServletContext |
getServletContext()
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javax.servlet.http.HttpSession |
getSession()
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javax.servlet.jsp.el.VariableResolver |
getVariableResolver()
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void |
handlePageException(java.lang.Exception ex)
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void |
handlePageException(java.lang.Throwable t)
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void |
include(java.lang.String relativeUrlPath)
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void |
include(java.lang.String relativeUrlPath,
boolean flush)
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void |
initialize(javax.servlet.Servlet servlet,
javax.servlet.ServletRequest request,
javax.servlet.ServletResponse response,
java.lang.String errorPageURL,
boolean needsSession,
int bufferSize,
boolean autoFlush)
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javax.servlet.jsp.JspWriter |
popBody()
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static java.lang.Object |
proprietaryEvaluate(java.lang.String expression,
java.lang.Class expectedType,
javax.servlet.jsp.PageContext pageContext,
java.util.Map functionMap,
java.lang.String defaultPrefix)
Proprietary method to evaluate EL expressions.
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javax.servlet.jsp.tagext.BodyContent |
pushBody()
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javax.servlet.jsp.JspWriter |
pushBody(java.io.Writer writer)
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void |
release()
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void |
removeAttribute(java.lang.String name)
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void |
removeAttribute(java.lang.String name,
int scope)
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java.lang.Object |
resolveVariable(java.lang.String pName,
java.lang.Object pContext)
VariableResolver interface |
void |
setAttribute(java.lang.String name,
java.lang.Object attribute)
|
void |
setAttribute(java.lang.String name,
java.lang.Object o,
int scope)
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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 |
outs
protected BodyContentImpl[] outs
depth
protected int depth
servlet
protected javax.servlet.Servlet servlet
config
protected javax.servlet.ServletConfig config
context
protected javax.servlet.ServletContext context
factory
protected javax.servlet.jsp.JspFactory factory
needsSession
protected boolean needsSession
errorPageURL
protected java.lang.String errorPageURL
autoFlush
protected boolean autoFlush
bufferSize
protected int bufferSize
attributes
protected transient java.util.Hashtable attributes
request
protected transient javax.servlet.ServletRequest request
response
protected transient javax.servlet.ServletResponse response
page
protected transient java.lang.Object page
session
protected transient javax.servlet.http.HttpSession session
isIncluded
protected boolean isIncluded
out
protected transient javax.servlet.jsp.JspWriter out
baseOut
protected transient JspWriterImpl baseOut
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,
java.lang.IllegalStateException,
java.lang.IllegalArgumentException
- Specified by:
initialize
in class javax.servlet.jsp.PageContext
java.io.IOException
java.lang.IllegalStateException
java.lang.IllegalArgumentException
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
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
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
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
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
java.io.IOException
javax.servlet.ServletException
resolveVariable
public java.lang.Object resolveVariable(java.lang.String pName,
java.lang.Object pContext)
throws javax.servlet.jsp.el.ELException
- VariableResolver interface
- Specified by:
resolveVariable
in interface javax.servlet.jsp.el.VariableResolver
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,
java.util.Map functionMap,
java.lang.String defaultPrefix)
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 MethoddefaultPrefix
- Default prefix for this evaluation
- Returns:
- The result of the evaluation
javax.servlet.jsp.el.ELException
_createOut
protected JspWriterImpl _createOut(int bufferSize,
boolean autoFlush)
throws java.io.IOException,
java.lang.IllegalArgumentException
java.io.IOException
java.lang.IllegalArgumentException
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