| java.lang.Object
 javax.servlet.jsp.JspFactory
All known Subclasses: org.apache.jasper.runtime.JspFactoryImpl,
| JspFactory | | abstract public class JspFactory (Code) | |
The JspFactory is an abstract class that defines a number of factory
methods available to a JSP page at runtime for the purposes of creating
instances of various interfaces and classes used to support the JSP
implementation.
A conformant JSP Engine implementation will, during it's initialization
instantiate an implementation dependent subclass of this class, and make
it globally available for use by JSP implementation classes by registering
the instance created with this class via the
static setDefaultFactory() method.
The PageContext and the JspEngineInfo classes are the only implementation-dependent
classes that can be created from the factory.
JspFactory objects should not be used by JSP page authors.
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| Constructor Summary | |
| public | JspFactory()
Sole constructor. |
| Method Summary | |
| public static synchronized JspFactory | getDefaultFactory()
Returns the default factory for this implementation. | | abstract public JspEngineInfo | getEngineInfo()
called to get implementation-specific information on the current JSP engine. | | abstract public JspApplicationContext | getJspApplicationContext(ServletContext context)
Obtain the JspApplicationContext instance that was associated
within the passed ServletContext for this web application. | | abstract public PageContext | getPageContext(Servlet servlet, ServletRequest request, ServletResponse response, String errorPageURL, boolean needsSession, int buffer, boolean autoflush)
obtains an instance of an implementation dependent
javax.servlet.jsp.PageContext abstract class for the calling Servlet
and currently pending request and response.
This method is typically called early in the processing of the
_jspService() method of a JSP implementation class in order to
obtain a PageContext object for the request being processed.
Invoking this method shall result in the PageContext.initialize()
method being invoked. | | abstract public void | releasePageContext(PageContext pc)
called to release a previously allocated PageContext object. | | public static synchronized void | setDefaultFactory(JspFactory deflt)
set the default factory for this implementation. |
| JspFactory | | public JspFactory()(Code) | | Sole constructor. (For invocation by subclass constructors,
typically implicit.)
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| getDefaultFactory | | public static synchronized JspFactory getDefaultFactory()(Code) | | Returns the default factory for this implementation.
the default factory for this implementation |
| getEngineInfo | | abstract public JspEngineInfo getEngineInfo()(Code) | |
called to get implementation-specific information on the current JSP engine.
a JspEngineInfo object describing the current JSP engine |
| getJspApplicationContext | | abstract public JspApplicationContext getJspApplicationContext(ServletContext context)(Code) | |
Obtain the JspApplicationContext instance that was associated
within the passed ServletContext for this web application.
Parameters:
context - the current web application's ServletContext JspApplicationContext instance
since:
2.1 |
| getPageContext | | abstract public PageContext getPageContext(Servlet servlet, ServletRequest request, ServletResponse response, String errorPageURL, boolean needsSession, int buffer, boolean autoflush)(Code) | |
obtains an instance of an implementation dependent
javax.servlet.jsp.PageContext abstract class for the calling Servlet
and currently pending request and response.
This method is typically called early in the processing of the
_jspService() method of a JSP implementation class in order to
obtain a PageContext object for the request being processed.
Invoking this method shall result in the PageContext.initialize()
method being invoked. The PageContext returned is properly initialized.
All PageContext objects obtained via this method shall be released
by invoking releasePageContext().
Parameters:
servlet - the requesting servlet
Parameters:
request - the current request pending on the servlet
Parameters:
response - the current response pending on the servlet
Parameters:
errorPageURL - the URL of the error page for the requesting JSP, or null
Parameters:
needsSession - true if the JSP participates in a session
Parameters:
buffer - size of buffer in bytes, PageContext.NO_BUFFER if no buffer,PageContext.DEFAULT_BUFFER if implementation default.
Parameters:
autoflush - should the buffer autoflush to the output stream on bufferoverflow, or throw an IOException? the page context
See Also: javax.servlet.jsp.PageContext |
| releasePageContext | | abstract public void releasePageContext(PageContext pc)(Code) | |
called to release a previously allocated PageContext object.
Results in PageContext.release() being invoked.
This method should be invoked prior to returning from the _jspService() method of a JSP implementation
class.
Parameters:
pc - A PageContext previously obtained by getPageContext() |
| setDefaultFactory | | public static synchronized void setDefaultFactory(JspFactory deflt)(Code) | |
set the default factory for this implementation. It is illegal for
any principal other than the JSP Engine runtime to call this method.
Parameters:
deflt - The default factory implementation |
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