svn commit: rev 57517 - cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/formmodel

[sylvain]

Author: sylvain
Date: Fri Nov 12 05:38:45 2004
New Revision: 57517

Modified:
   
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/formmodel/Field.java
Log:
Optimize lazy parsing of value. Tim, I think we finally got it :-)

Modified: 
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/formmodel/Field.java
==============================================================================
--- 
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/formmodel/Field.java 
    (original)
+++ 
cocoon/trunk/src/blocks/forms/java/org/apache/cocoon/forms/formmodel/Field.java 
    Fri Nov 12 05:38:45 2004
@@ -201,14 +201,18 @@
         // Only convert if the text value actually changed. Otherwise, keep 
the old value
         // and/or the old validation error (allows to keep errors when 
clicking on actions)
         if (!(newEnteredValue == null ? "" : 
newEnteredValue).equals((enteredValue == null ? "" : enteredValue))) {
-            // Make sure the old value has been parsed and validated.
-            Object oldValue = getValue();
+            
+            // If we have some value-changed listeners, we must make sure the 
current value has been
+            // parsed, to fill the event. Otherwise, we don't need to spend 
that extra CPU time.
+            boolean hasListeners = hasValueChangedListeners();
+            Object oldValue = hasListeners ? getValue() : null;
+            
             enteredValue = newEnteredValue;
             validationError = null;
             value = null;
             this.valueState = VALUE_UNPARSED;
 
-            if (hasValueChangedListeners()) {
+            if (hasListeners) {
                 // Throw an event that will hold the old value and
                 // will lazily compute the new value only if needed.
                 getForm().addWidgetEvent(new DeferredValueChangedEvent(this, 
oldValue));