org.hsqldb.server

Class Servlet

java.lang.Object

javax.servlet.GenericServlet

javax.servlet.http.HttpServlet

org.hsqldb.server.Servlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class Servlet
extends javax.servlet.http.HttpServlet

Servlet can act as an interface between the client and the database for the the client / server mode of HSQL Database Engine. It uses the HTTP protocol for communication. This class is not required if the included HSQLDB Weberver is used on the server host. But if the host is running a J2EE application server or a servlet container such as Tomcat, the Servlet class can be hosted on this server / container to serve external requests from external hosts.

The remote applet / application should use the normal JDBC interfaces to connect to the URL of this servlet. An example URL is:

 jdbc:hsqldb:http://myhost.com:8080/servlet/org.hsqldb.server.Servlet
 

The database path/name is taken from the servlet engine property:

 hsqldb.server.database
 

If the database is deployed in the WEB-INF directory of the servlet container, the property:

  hsqldb.server.use_web-inf_path
 

should be set "true" in the web.xml file of the servlet container. In this case, the database path should begin with a "/". JDBC connections via the HTTP protocol are persistent in the JDBC sense. The JDBC Connection that is established can support transactions spanning several Statement calls and real PreparedStatement calls are supported. This class has been rewritten to support the new features.

(fredt@users)

Extensively rewritten for HSQLDB.

Since:

Hypersonic SQL

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Servlet()

Method Summary

Modifier and Type	Method and Description
void	doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response)
void	init(javax.servlet.ServletConfig config)

Methods inherited from class javax.servlet.http.HttpServlet

service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, log, log

Methods inherited from class java.lang.Object

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

Constructor Detail

Servlet

public Servlet()

Method Detail

init

public void init(javax.servlet.ServletConfig config)

Specified by:

init in interface javax.servlet.Servlet

Overrides:

init in class javax.servlet.GenericServlet

doGet

public void doGet(javax.servlet.http.HttpServletRequest request,
                  javax.servlet.http.HttpServletResponse response)
           throws java.io.IOException,
                  javax.servlet.ServletException

Overrides:

doGet in class javax.servlet.http.HttpServlet

Throws:

java.io.IOException

javax.servlet.ServletException

doPost

public void doPost(javax.servlet.http.HttpServletRequest request,
                   javax.servlet.http.HttpServletResponse response)
            throws java.io.IOException,
                   javax.servlet.ServletException

Overrides:

doPost in class javax.servlet.http.HttpServlet

Throws:

java.io.IOException

javax.servlet.ServletException