It is hard to say. What version of Tapestry are you working with?
Not my business to say, but I'd be more than a little worried about
trying to store so much state in a cookie object. Despite the relative
ease with which different API's make it possible to muck around with
them most people don't realize that the very large/cumbersome penalty
for this nicety is that all cookie state must be transmitted on each
http request. Just think of it like running with weights on your legs.
On 2/12/07, Manri Offermann <[EMAIL PROTECTED]> wrote:
Hi Tapestry users,
I am trying to store an ASO in a cookie. I have read previous posts about
problems when the cookie is written and that the issue was fixed, but I still
seem to have problems.
Somehow the store() method of my CookieScopeManager does not write anything to
the cookie at all.
Is this issue still related to TAPESTRY-825? Can somebody help me out?
Best regards,
Manri
Here is my CookieScopeManager:
public class CookieScopeManager implements StateObjectPersistenceManager {
private String applicationId;
private CookieSource cookieSource;
private DataSqueezer dataSqueezer;
/**
* @see
org.apache.tapestry.engine.state.StateObjectPersistenceManager#exists(java.lang.String)
*/
public boolean exists(String objectName) {
return cookieSource.readCookieValue(buildKey(objectName)) != null;
}
/**
* @see
org.apache.tapestry.engine.state.StateObjectPersistenceManager#get(java.lang.String,
org.apache.tapestry.engine.state.StateObjectFactory)
*/
public Object get(String objectName, StateObjectFactory factory) {
String key = buildKey(objectName);
String value = cookieSource.readCookieValue(key);
if (value == null)
value = "X"; // NullDataSqueezerFilter
Object result = dataSqueezer.unsqueeze(value);
if (result == null) {
System.out.println("create");
result = factory.createStateObject();
cookieSource.writeCookieValue(key, dataSqueezer.squeeze(result));
}
System.out.println(ReflectionToStringBuilder.toString(result));
return result;
}
/**
* @see
org.apache.tapestry.engine.state.StateObjectPersistenceManager#store(java.lang.String,
java.lang.Object)
*/
public void store(String objectName, Object stateObject) {
try {
throw new Exception();
} catch (Exception e) {
e.printStackTrace();
}
String key = buildKey(objectName);
cookieSource.writeCookieValue(key, dataSqueezer.squeeze(stateObject));
System.out.println(ReflectionToStringBuilder.toString(stateObject));
cookieSource.writeCookieValue("foo", "bar");
}
private String buildKey(String objectName) {
return "state:" + applicationId + ":" + objectName;
}
/**
* @param applicationId the applicationId to set
*/
public void setApplicationId(String applicationId) {
this.applicationId = applicationId;
}
/**
* @param cookieSource the cookieSource to set
*/
public void setCookieSource(CookieSource cookieSource) {
this.cookieSource = cookieSource;
}
/**
* @param dataSqueezer the dataSqueezer to set
*/
public void setDataSqueezer(DataSqueezer dataSqueezer) {
this.dataSqueezer = dataSqueezer;
}
}
--
Jesse Kuhnert
Tapestry/Dojo team member/developer
Open source based consulting work centered around
dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com
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