Package com.googlecode.objectify.cache

Class AsyncCacheFilter

java.lang.Object
com.googlecode.objectify.cache.AsyncCacheFilter
All Implemented Interfaces:
javax.servlet.Filter
public class AsyncCacheFilter extends Object implements javax.servlet.Filter

This Filter is a companion to the CachingAsyncDatastoreService, and must be installed any time the CachingAsyncDatastoreService is used without Objectify.

This Filter is a temporary measure until Google provides a hook that lets us intercept the raw Futureinvalid input: '<'?> calls at the end of a request. At that point this filter can be eliminated in favor of the hook.

In your web.xml: 
       <filter>
              <filter-name>AsyncCacheFilter</filter-name>
              <filter-class>com.googlecode.objectify.cache.AsyncCacheFilter</filter-class>
      </filter>
      <filter-mapping>
              <filter-name>AsyncCacheFilter</filter-name>
              <url-pattern>/*</url-pattern>
      </filter-mapping>
Or, if you use Guice: 
      filter("/*").through(AsyncCacheFilter.class);

Note that you do not need to configure this filter if you are using Objectify.

If you use the CachingAsyncDatastoreService outside of the context of a request (say, using the remote API or from a unit test), then you should call AsyncCacheFilter.complete() after every operation that you consider a "request". For example, after each test.

Author:
Jeff Schnitzer invalid input: '<'[email protected]>

  • Constructor Summary

    Constructors
    Constructor
    Description
    AsyncCacheFilter()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static void
    complete()
    Perform the actions that are performed upon normal completion of a request.
    void
    destroy()
     
    void
    doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain)
     
    void
    init(javax.servlet.FilterConfig filterConfig)
     

    Methods inherited from class java.lang.Object

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

  • Constructor Details

    • AsyncCacheFilter

      public AsyncCacheFilter()

  • Method Details

    • doFilter

      public void doFilter(javax.servlet.ServletRequest request, javax.servlet.ServletResponse response, javax.servlet.FilterChain chain) throws IOException, javax.servlet.ServletException
      Specified by:
      doFilter in interface javax.servlet.Filter
      Throws:
      IOException
      javax.servlet.ServletException

    • complete

      public static void complete()
      Perform the actions that are performed upon normal completion of a request.

    • init

      public void init(javax.servlet.FilterConfig filterConfig) throws javax.servlet.ServletException
      Specified by:
      init in interface javax.servlet.Filter
      Throws:
      javax.servlet.ServletException

    • destroy

      public void destroy()
      Specified by:
      destroy in interface javax.servlet.Filter