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abstract public class: JspFactory [javadoc | source]

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.
 public JspFactory() 
Method from javax.servlet.jsp.JspFactory Summary:
getDefaultFactory,   getEngineInfo,   getJspApplicationContext,   getPageContext,   releasePageContext,   setDefaultFactory
Methods from java.lang.Object:
clone,   equals,   finalize,   getClass,   hashCode,   notify,   notifyAll,   toString,   wait,   wait,   wait
Method from javax.servlet.jsp.JspFactory Detail:
 public static 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. The PageContext returned is properly initialized.

    All PageContext objects obtained via this method shall be released by invoking releasePageContext().

 abstract public  void releasePageContext(PageContext pc)

    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.

 public static  void setDefaultFactory(JspFactory deflt) 

    set the default factory for this implementation. It is illegal for any principal other than the JSP Engine runtime to call this method.