org.apache.jasper.runtime
类 JspFactoryImpl

java.lang.Object
  javax.servlet.jsp.JspFactory
      org.apache.jasper.runtime.JspFactoryImpl

public class JspFactoryImpl
extends JspFactory

Implementation of JspFactory.

作者：

Anil K. Vijendran, Kin-man Chung

构造方法摘要

JspFactoryImpl()

方法摘要

JspEngineInfo	getEngineInfo() called to get implementation-specific information on the current JSP engine.
JspApplicationContext	getJspApplicationContext(ServletContext context) Obtains the JspApplicationContext instance associated with the web application for the given ServletContext.
PageContext	getPageContext(Servlet servlet, ServletRequest request, ServletResponse response, String errorPageURL, boolean needsSession, int bufferSize, 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.
void	releasePageContext(PageContext pc) called to release a previously allocated PageContext object.

从类 javax.servlet.jsp.JspFactory 继承的方法

getDefaultFactory, setDefaultFactory

从类 java.lang.Object 继承的方法

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

构造方法详细信息

JspFactoryImpl

public JspFactoryImpl()

方法详细信息

getPageContext

public PageContext getPageContext(Servlet servlet,
                                  ServletRequest request,
                                  ServletResponse response,
                                  String errorPageURL,
                                  boolean needsSession,
                                  int bufferSize,
                                  boolean autoflush)

从类 JspFactory 复制的描述

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().

指定者：

类 JspFactory 中的 getPageContext

参数：

servlet - the requesting servlet

request - the current request pending on the servlet

response - the current response pending on the servlet

errorPageURL - the URL of the error page for the requesting JSP, or null

needsSession - true if the JSP participates in a session

bufferSize - size of buffer in bytes, PageContext.NO_BUFFER if no buffer, PageContext.DEFAULT_BUFFER if implementation default.

autoflush - should the buffer autoflush to the output stream on buffer overflow, or throw an IOException?

返回：

the page context

另请参见：

PageContext

releasePageContext

public void releasePageContext(PageContext pc)

从类 JspFactory 复制的描述

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.

指定者：

类 JspFactory 中的 releasePageContext

参数：

pc - A PageContext previously obtained by getPageContext()

getEngineInfo

public JspEngineInfo getEngineInfo()

从类 JspFactory 复制的描述

called to get implementation-specific information on the current JSP engine.

指定者：

类 JspFactory 中的 getEngineInfo

返回：

a JspEngineInfo object describing the current JSP engine

getJspApplicationContext

public JspApplicationContext getJspApplicationContext(ServletContext context)

从类 JspFactory 复制的描述

Obtains the JspApplicationContext instance associated with the web application for the given ServletContext.

指定者：

类 JspFactory 中的 getJspApplicationContext

参数：

context - The ServletContext for the web application the desired JspApplicationContext is associated with.

返回：

The JspApplicationContext associated with the web application.