Do not require to buffer the output with server-side-state-saving
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Key: MYFACES-1753
URL: https://issues.apache.org/jira/browse/MYFACES-1753
Project: MyFaces Core
Issue Type: Improvement
Reporter: Mario Ivankovits
Assignee: Mario Ivankovits
Attachments: no_buffer.diff
Attached you will find a patch against MyFaces 1.2.1 head which will eliminate
the need to buffer the output to write in the ViewState hidden field when using
Server-Side-State-Saving.
With SSSS just a sequence number (previously jsf_sequence) will be written into
the ViewState hidden field.
This patch changes just this, and avoid the use of the StateAwareWriter. The
restore process based on the jsf_sequence already worked, just minor
restructuring to get the next sequence number early.
When using Facelets, you'll also need a ViewHandler with the following content:
public void renderView(FacesContext context, UIViewRoot uiRoot) throws
IOException, FacesException
{
StateManager stateManager =
context.getApplication().getStateManager();
original.renderView(context, uiRoot);
stateManager.saveView(context);
}
public void writeState(FacesContext context) throws IOException
{
StateManager stateManager =
context.getApplication().getStateManager();
if (stateManager.isSavingStateInClient(context))
{
original.writeState(context);
}
else
{
stateManager.writeState(context, new Object[2]);
}
}
This disables the Facelets own state handling and ensures we save the view
after rendering.
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