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Java Source Code / Java Documentation » EJB Server resin 3.1.5 » jsdk » javax.servlet

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

javax.servlet .GenericServlet

All known Subclasses:   javax.servlet.http .HttpServlet,
GenericServlet
abstract public class GenericServlet implements Servlet,ServletConfig,java.io.Serializable(Code)
GenericServlet is a convenient abstract class for defining Servlets. Servlets which need more control than HttpServlet can extend GenericServlet.
In addition, GenericServlet implements ServletConfig to make it easier to get configuration information.
Servlet configuration looks like the following:
<servlet servlet-name='myservlet' servlet-class='test.MyServlet'> <init-param param1='value1'/> <init-param param2='value2'/> </servlet>

Method Summary
public void destroy()
     Called when the servlet (and the application) shuts down.
public String getInitParameter(String name)
     Returns an initialization parameter.
public Enumeration getInitParameterNames()
     Enumerates all the initialization parameter.
public ServletConfig getServletConfig()
     Returns this servlet's configuration.
public ServletContext getServletContext()
     Returns the application (servlet context) that the servlet belongs to.
public String getServletInfo()
     Returns a string describing the servlet.
public String getServletName()
     Returns the servlet name for this configuration.
public void init(ServletConfig config)
     Initialize the servlet.
public void init()
     Initialize the servlet.
public void log(String message)
     Logs an error message in the application's log.
public void log(String message, Throwable cause)
     Logs an error message and an exception trace in the application's log.
public String toString()


Method Detail
destroy
public void destroy()(Code)
Called when the servlet (and the application) shuts down.

getInitParameter
public String getInitParameter(String name)(Code)
Returns an initialization parameter. Initialization parameters are defined in the servlet configuration (in resin.conf) as follows:
<servlet servlet-name='myservlet' servlet-class='test.MyServlet'> <init-param param1='value1'/> <init-param param2='value2'/> </servlet>

Parameters:
  name - of the parameter the init parameter value

getInitParameterNames
public Enumeration getInitParameterNames()(Code)
Enumerates all the initialization parameter.

getServletConfig
public ServletConfig getServletConfig()(Code)
Returns this servlet's configuration.

getServletContext
public ServletContext getServletContext()(Code)
Returns the application (servlet context) that the servlet belongs to. The application provides several useful methods, e.g. including other files, forwarding, and translating physical paths.

getServletInfo
public String getServletInfo()(Code)
Returns a string describing the servlet.

getServletName
public String getServletName()(Code)
Returns the servlet name for this configuration. For example, 'myservlet' in the following configuration:
<servlet servlet-name='myservlet' servlet-class='test.MyServlet'/>

init
public void init(ServletConfig config) throws ServletException(Code)
Initialize the servlet. Most servlets should override the zero parameter init() instead.
Parameters:
  config - the servlet's configuration

init
public void init() throws ServletException(Code)
Initialize the servlet. Servlets should override this method if they need any initialization like opening pooled database connections.

log
public void log(String message)(Code)
Logs an error message in the application's log.

log
public void log(String message, Throwable cause)(Code)
Logs an error message and an exception trace in the application's log.

toString
public String toString()(Code)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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