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org.milligan.eccles.evaluator
Class PageContextFacade  

java.lang.Object
  javax.servlet.jsp.JspContext
      javax.servlet.jsp.PageContext
          org.milligan.eccles.evaluator.PageContextFacade

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public class PageContextFacade

extends javax.servlet.jsp.PageContext

A helper class to interface with the JSTL SPEL. Make property functions appear as a PageContext

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Field Summary
protected static org.apache.log4j.Category	log
protected  org.milligan.eccles.RunStateEx	state           The run state

 

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

 

Constructor Summary

PageContextFacade(org.milligan.eccles.RunStateEx state)

 

Method Summary
java.lang.Object	findAttribute(java.lang.String parm1)           Implementation of find attribute.
void	forward(java.lang.String parm1)            This method is used to re-direct, or "forward" the current ServletRequest and ServletResponse to another active component in the application.
java.lang.Object	getAttribute(java.lang.String parm1)           Returns the object associated with the name in the page scope or null if not found.
java.lang.Object	getAttribute(java.lang.String parm1, int parm2)           Return the object associated with the name in the specified scope or null if not found.
java.util.Enumeration	getAttributeNamesInScope(int parm1)           Enumerate all the attributes in a given scope.
int	getAttributesScope(java.lang.String parm1)           Get the scope where a given attribute is defined.
java.lang.Exception	getException()           The current value of the exception object (an Exception).
javax.servlet.jsp.JspWriter	getOut()           The current value of the out object (a JspWriter).
java.lang.Object	getPage()           The current value of the page object (In a Servlet environment, this is an instance of javax.servlet.Servlet).
javax.servlet.ServletRequest	getRequest()           The current value of the request object (a ServletRequest).
javax.servlet.ServletResponse	getResponse()           The current value of the response object (a ServletResponse).
javax.servlet.ServletConfig	getServletConfig()           The ServletConfig instance.
javax.servlet.ServletContext	getServletContext()           The ServletContext instance.
javax.servlet.http.HttpSession	getSession()           The current value of the session object (an HttpSession).
void	handlePageException(java.lang.Exception parm1)            This method is intended to process an unhandled 'page' level exception by forwarding the exception to the specified error page for this JSP.
void	handlePageException(java.lang.Throwable parm1)            This method is intended to process an unhandled 'page' level exception by forwarding the exception to the specified error page for this JSP.
void	include(java.lang.String parm1)            Causes the resource specified to be processed as part of the current ServletRequest and ServletResponse being processed by the calling Thread.
void	initialize(javax.servlet.Servlet parm1, javax.servlet.ServletRequest parm2, javax.servlet.ServletResponse parm3, java.lang.String parm4, boolean parm5, int parm6, boolean parm7)            The initialize method is called to initialize an uninitialized PageContext so that it may be used by a JSP Implementation class to service an incoming request and response within it's _jspService() method.
void	release()            This method shall "reset" the internal state of a PageContext, releasing all internal references, and preparing the PageContext for potential reuse by a later invocation of initialize().
void	removeAttribute(java.lang.String parm1)           Remove the object reference associated with the given name from all scopes.
void	removeAttribute(java.lang.String parm1, int parm2)           Remove the object reference associated with the specified name in the given scope.
void	setAttribute(java.lang.String parm1, java.lang.Object parm2)           Register the name and value specified with page scope semantics.
void	setAttribute(java.lang.String parm1, java.lang.Object parm2, int parm3)           Register the name and value specified with appropriate scope semantics.

 

Methods inherited from class javax.servlet.jsp.PageContext

getErrorData, include, pushBody

 

Methods inherited from class javax.servlet.jsp.JspContext

getExpressionEvaluator, getVariableResolver, popBody, pushBody

 

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

 

Field Detail

log

protected static final org.apache.log4j.Category log

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state

protected org.milligan.eccles.RunStateEx state

The run state

Constructor Detail

PageContextFacade

public PageContextFacade(org.milligan.eccles.RunStateEx state)

Method Detail

getSession

public javax.servlet.http.HttpSession getSession()

Description copied from class: javax.servlet.jsp.PageContext

The current value of the session object (an HttpSession).

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handlePageException

public void handlePageException(java.lang.Exception parm1)
                         throws javax.servlet.ServletException,
                                java.io.IOException

Description copied from class: javax.servlet.jsp.PageContext

This method is intended to process an unhandled 'page' level exception by forwarding the exception to the specified error page for this JSP. If forwarding is not possible (for example because the response has already been committed), an implementation dependent mechanism should be used to invoke the error page (e.g. "including" the error page instead).

If no error page is defined in the page, the exception should be rethrown so that the standard servlet error handling takes over.

A JSP implementation class shall typically clean up any local state prior to invoking this and will return immediately thereafter. It is illegal to generate any output to the client, or to modify any ServletResponse state after invoking this call.

This method is kept for backwards compatiblity reasons. Newly generated code should use PageContext.handlePageException(Throwable).

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getServletConfig

public javax.servlet.ServletConfig getServletConfig()

Description copied from class: javax.servlet.jsp.PageContext

The ServletConfig instance.

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include

public void include(java.lang.String parm1)
             throws javax.servlet.ServletException,
                    java.io.IOException

Description copied from class: javax.servlet.jsp.PageContext

Causes the resource specified to be processed as part of the current ServletRequest and ServletResponse being processed by the calling Thread. The output of the target resources processing of the request is written directly to the ServletResponse output stream.

The current JspWriter "out" for this JSP is flushed as a side-effect of this call, prior to processing the include.

If the relativeUrlPath begins with a "/" then the URL specified is calculated relative to the DOCROOT of the ServletContext for this JSP. If the path does not begin with a "/" then the URL specified is calculated relative to the URL of the request that was mapped to the calling JSP.

It is only valid to call this method from a Thread executing within a _jspService(...) method of a JSP.

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release

public void release()

Description copied from class: javax.servlet.jsp.PageContext

This method shall "reset" the internal state of a PageContext, releasing all internal references, and preparing the PageContext for potential reuse by a later invocation of initialize(). This method is typically called from JspFactory.releasePageContext().

Subclasses shall envelope this method.

This method should not be used by page or tag library authors.

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removeAttribute

public void removeAttribute(java.lang.String parm1,
                            int parm2)

Description copied from class: javax.servlet.jsp.JspContext

Remove the object reference associated with the specified name in the given scope. Does nothing if there is no such object.

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removeAttribute

public void removeAttribute(java.lang.String parm1)

Description copied from class: javax.servlet.jsp.JspContext

Remove the object reference associated with the given name from all scopes. Does nothing if there is no such object.

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getOut

public javax.servlet.jsp.JspWriter getOut()

Description copied from class: javax.servlet.jsp.JspContext

The current value of the out object (a JspWriter).

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handlePageException

public void handlePageException(java.lang.Throwable parm1)
                         throws javax.servlet.ServletException,
                                java.io.IOException

Description copied from class: javax.servlet.jsp.PageContext

This method is intended to process an unhandled 'page' level exception by forwarding the exception to the specified error page for this JSP. If forwarding is not possible (for example because the response has already been committed), an implementation dependent mechanism should be used to invoke the error page (e.g. "including" the error page instead).

If no error page is defined in the page, the exception should be rethrown so that the standard servlet error handling takes over.

This method is intended to process an unhandled "page" level exception by redirecting the exception to either the specified error page for this JSP, or if none was specified, to perform some implementation dependent action.

A JSP implementation class shall typically clean up any local state prior to invoking this and will return immediately thereafter. It is illegal to generate any output to the client, or to modify any ServletResponse state after invoking this call.

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getPage

public java.lang.Object getPage()

Description copied from class: javax.servlet.jsp.PageContext

The current value of the page object (In a Servlet environment, this is an instance of javax.servlet.Servlet).

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setAttribute

public void setAttribute(java.lang.String parm1,
                         java.lang.Object parm2,
                         int parm3)

Description copied from class: javax.servlet.jsp.JspContext

Register the name and value specified with appropriate scope semantics. If the value passed in is null, this has the same effect as calling removeAttribute( name, scope ).

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forward

public void forward(java.lang.String parm1)
             throws javax.servlet.ServletException,
                    java.io.IOException

Description copied from class: javax.servlet.jsp.PageContext

This method is used to re-direct, or "forward" the current ServletRequest and ServletResponse to another active component in the application.

If the relativeUrlPath begins with a "/" then the URL specified is calculated relative to the DOCROOT of the ServletContext for this JSP. If the path does not begin with a "/" then the URL specified is calculated relative to the URL of the request that was mapped to the calling JSP.

It is only valid to call this method from a Thread executing within a _jspService(...) method of a JSP.

Once this method has been called successfully, it is illegal for the calling Thread to attempt to modify the ServletResponse object. Any such attempt to do so, shall result in undefined behavior. Typically, callers immediately return from _jspService(...) after calling this method.

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getServletContext

public javax.servlet.ServletContext getServletContext()

Description copied from class: javax.servlet.jsp.PageContext

The ServletContext instance.

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getException

public java.lang.Exception getException()

Description copied from class: javax.servlet.jsp.PageContext

The current value of the exception object (an Exception).

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initialize

public void initialize(javax.servlet.Servlet parm1,
                       javax.servlet.ServletRequest parm2,
                       javax.servlet.ServletResponse parm3,
                       java.lang.String parm4,
                       boolean parm5,
                       int parm6,
                       boolean parm7)
                throws java.io.IOException,
                       java.lang.IllegalStateException,
                       java.lang.IllegalArgumentException

Description copied from class: javax.servlet.jsp.PageContext

The initialize method is called to initialize an uninitialized PageContext so that it may be used by a JSP Implementation class to service an incoming request and response within it's _jspService() method.

This method is typically called from JspFactory.getPageContext() in order to initialize state.

This method is required to create an initial JspWriter, and associate the "out" name in page scope with this newly created object.

This method should not be used by page or tag library authors.

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getAttributeNamesInScope

public java.util.Enumeration getAttributeNamesInScope(int parm1)

Description copied from class: javax.servlet.jsp.JspContext

Enumerate all the attributes in a given scope.

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getResponse

public javax.servlet.ServletResponse getResponse()

Description copied from class: javax.servlet.jsp.PageContext

The current value of the response object (a ServletResponse).

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getAttributesScope

public int getAttributesScope(java.lang.String parm1)

Description copied from class: javax.servlet.jsp.JspContext

Get the scope where a given attribute is defined.

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getRequest

public javax.servlet.ServletRequest getRequest()

Description copied from class: javax.servlet.jsp.PageContext

The current value of the request object (a ServletRequest).

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getAttribute

public java.lang.Object getAttribute(java.lang.String parm1)

Description copied from class: javax.servlet.jsp.JspContext

Returns the object associated with the name in the page scope or null if not found.

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setAttribute

public void setAttribute(java.lang.String parm1,
                         java.lang.Object parm2)

Description copied from class: javax.servlet.jsp.JspContext

Register the name and value specified with page scope semantics. If the value passed in is null, this has the same effect as calling removeAttribute( name, PageContext.PAGE_SCOPE ).

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findAttribute

public java.lang.Object findAttribute(java.lang.String parm1)

Implementation of find attribute. just do a lookup on the state

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getAttribute

public java.lang.Object getAttribute(java.lang.String parm1,
                                     int parm2)

Description copied from class: javax.servlet.jsp.JspContext

Return the object associated with the name in the specified scope or null if not found.

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> milligan >> eccles >> [ evaluator overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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