Java Reference
In-Depth Information
Classes
The
javax.servlet.jsp
package has four classes:
JspEngineInfo
,
JspFactory
,
JspWriter
,
and
PageContext
.
The
JspEngineInfo
Class
public abstract class JspEngineInfo
The
JspEngineInfo
class is an abstract class that provides information on the current JSP
engine. It defines two methods.
The
JspEngineInfo()
Method
public JspEngineInfo()
The
JspEngineInfo()
method is an empty default constructor. It has no parameters, returns no
value, and throws no exceptions.
The
getImplementationVersion()
Method
public java.lang.String getImplementationVersion()
The
getImplementationVersion()
method returns the current version of the JSP specification.
The version number must begin with a number. If the version is not defined, a null will be
returned. It has no parameters and throws no exceptions.
It returns this value:
•
java.lang.String
The
JspFactory
Class
public abstract class JspFactory extends java.lang.Object
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. It has one field and six methods.
The
deflt
Field
private static JspFactory deflt
The
deflt
field represents the default
JSPFactory
implementation.
The
JspFactory()
Method
public JspFactory()
