|
|||||||||
| Home >> All >> javax >> servlet >> [ jsp overview ] | PREV CLASS NEXT CLASS | ||||||||
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||
javax.servlet.jsp
Class JspFactory
java.lang.Objectjavax.servlet.jsp.JspFactory
- public abstract class JspFactory
- extends java.lang.Object
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.
| Field Summary | |
private static JspFactory |
deflt
|
| Constructor Summary | |
JspFactory()
Sole constructor. |
|
| Method Summary | |
static JspFactory |
getDefaultFactory()
Returns the default factory for this implementation. |
abstract JspEngineInfo |
getEngineInfo()
called to get implementation-specific information on the current JSP engine. |
abstract PageContext |
getPageContext(javax.servlet.Servlet servlet,
javax.servlet.ServletRequest request,
javax.servlet.ServletResponse response,
java.lang.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. |
abstract void |
releasePageContext(PageContext pc)
called to release a previously allocated PageContext object. |
static void |
setDefaultFactory(JspFactory deflt)
set the default factory for this implementation. |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
deflt
private static JspFactory deflt
| Constructor Detail |
JspFactory
public JspFactory()
- Sole constructor. (For invocation by subclass constructors,
typically implicit.)
| Method Detail |
setDefaultFactory
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.
getDefaultFactory
public static JspFactory getDefaultFactory()
- Returns the default factory for this implementation.
getPageContext
public abstract PageContext getPageContext(javax.servlet.Servlet servlet, javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, java.lang.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().
releasePageContext
public abstract 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.
getEngineInfo
public abstract JspEngineInfo getEngineInfo()
called to get implementation-specific information on the current JSP engine.
|
|||||||||
| Home >> All >> javax >> servlet >> [ jsp overview ] | PREV CLASS NEXT CLASS | ||||||||
|
SUMMARY: JAVADOC | SOURCE | DOWNLOAD | NESTED | FIELD | CONSTR | METHOD |
DETAIL: FIELD | CONSTR | METHOD | ||||||||