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java.lang.Objectorg.apache.struts.webapp.example.memory.MemoryDatabasePlugIn
public final class MemoryDatabasePlugIn
MemoryDatabasePlugIn initializes and finalizes the persistent storage of User and Subscription information for the Struts Demonstration Application, using an in-memory database backed by an XML file.
IMPLEMENTATION WARNING - If this web application is run from a WAR file, or in another environment where reading and writing of the web application resource is impossible, the initial contents will be copied to a file in the web application temporary directory provided by the container. This is for demonstration purposes only - you should NOT assume that files written here will survive a restart of your servlet container.
| Constructor Summary | |
|---|---|
MemoryDatabasePlugIn()
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| Method Summary | |
|---|---|
void |
destroy()
Gracefully shut down this database, releasing any resources that were allocated at initialization. |
java.lang.String |
getPathname()
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void |
init(ActionServlet servlet,
ModuleConfig config)
Initialize and load our initial database from persistent storage. |
void |
setPathname(java.lang.String pathname)
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protected void |
setupCache(ActionServlet servlet,
ModuleConfig config)
Cache commonly required data as servlet context attributes. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
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public MemoryDatabasePlugIn()
| Method Detail |
|---|
public java.lang.String getPathname()
public void setPathname(java.lang.String pathname)
public void destroy()
destroy in interface PlugIn
public void init(ActionServlet servlet,
ModuleConfig config)
throws javax.servlet.ServletException
init in interface PlugInservlet - The ActionServlet for this web applicationconfig - The ApplicationConfig for our owning module
javax.servlet.ServletException - if we cannot configure ourselves correctly
protected void setupCache(ActionServlet servlet,
ModuleConfig config)
Cache commonly required data as servlet context attributes.
servlet - The ActionServlet instance running
this webappconfig - The ModuleConfig for this application module
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