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From sa...@apache.org
Subject svn commit: r932211 - in /click/trunk/click/documentation/docs: roadmap-changes.html upgrade-path.html
Date Fri, 09 Apr 2010 01:52:57 GMT
Author: sabob
Date: Fri Apr  9 01:52:56 2010
New Revision: 932211

URL: http://svn.apache.org/viewvc?rev=932211&view=rev
Log:
roadmap

Modified:
    click/trunk/click/documentation/docs/roadmap-changes.html
    click/trunk/click/documentation/docs/upgrade-path.html

Modified: click/trunk/click/documentation/docs/roadmap-changes.html
URL: http://svn.apache.org/viewvc/click/trunk/click/documentation/docs/roadmap-changes.html?rev=932211&r1=932210&r2=932211&view=diff
==============================================================================
--- click/trunk/click/documentation/docs/roadmap-changes.html (original)
+++ click/trunk/click/documentation/docs/roadmap-changes.html Fri Apr  9 01:52:56 2010
@@ -76,12 +76,18 @@ includes improved Ajax support and @Bind
 
 <dl>
   <dt><a name="2.2.0"></a>
-    <div class="release-header">Development Release - Version 2.2.0 RC1 - 31 March
2010</div>
+    <div class="release-header">Development Release - Version 2.2.0 RC1 - ?? April
2010</div>
   </dt>
   <dd>
     <div style="margin-left:-2em;margin-bottom:1em;">
-      IMPORTANT be sure to read the <a href="upgrade-path.html">upgrade path</a>
+        <b>IMPORTANT:</b> be sure to read the <a href="upgrade-path.html#2.2.0">upgrade
path</a>
       when upgrading from previous releases.
+      <p/>
+      Its worth highlighting that in this release we have removed the deprecated methods
+      <tt>Page.getHtmlImports</tt> and <tt>Control.getHtmlImports</tt>.
Users
+      will have to migrate their code to use the new <tt>getHeadElements</tt>
instead.
+      Please see the section, <a href="upgrade-path.html#migrate-imports">migrating
imports</a>,
+      for more details.
     </div>
     <div style="margin-left: -2em; margin-top: 1.5em; margin-bottom: 1em;">
       <b>New examples:</b>

Modified: click/trunk/click/documentation/docs/upgrade-path.html
URL: http://svn.apache.org/viewvc/click/trunk/click/documentation/docs/upgrade-path.html?rev=932211&r1=932210&r2=932211&view=diff
==============================================================================
--- click/trunk/click/documentation/docs/upgrade-path.html (original)
+++ click/trunk/click/documentation/docs/upgrade-path.html Fri Apr  9 01:52:56 2010
@@ -82,6 +82,64 @@ versions please email the Click user gro
   <div class="release-header">Version 2.2.0 Upgrade</div></dt>
   <dd>
     <ul style="padding: 0em; margin-left:0em;margin-bottom: 2em">
+      <li class="change"><a name="migrate-imports"></a>
+        Migrated Click Controls from the old string based
+        <a href="click-api/org/apache/click/Control.html#getHtmlImports()">HTML imports</a>
+        to the new <a href="click-api/org/apache/click/element/Element.html">Element</a>
+        based <a href="click-api/org/apache/click/Control.html#getHeadElements()">HEAD
elements</a>.
+        <p/>
+        Unfortunately this change can lead to runtime behavioral errors for
+        applications using the string based <tt>getHtmlImports</tt> approach.
+        <p/>
+        As runtime errors are often more expensive to fix than compile time errors,
+        we have decided to remove the <tt>getHtmlImports</tt> method from the
+        Page and Control classes. In addition we have set <tt>getHtmlImports</tt>
+        to <tt>final</tt> in Page and Control. This ensures existing codebases
+        don't accidentally override this method in custom controls and pages.
+        In a future release of Click these final methods will be removed as well.
+        <p/>
+        This means Click 2.2.0 will force you to migrate from <tt>getHtmlImports</tt>
+        to <tt>getHeadElements</tt>.
+        <p/>
+        Here is a typical example of converting a <tt>getHtmlImports</tt> method
+        to <tt>getHeadElements</tt>.
+        <p/>
+        Before:
+
+        <pre class="prettyprint">
+public class MyPage extends BorderPage {
+     protected static final String HTML_IMPORT =
+         "&lt;link rel=\"stylesheet\" type=\"text/css\" src=\"{0}/js/mylib.css\"/&gt;\n"
+         + "&lt;script type=\"text/javascript\" src=\"{0}/js/mylib.js\"&gt;&lt;/script&gt;\n"
+         + "&lt;script type=\"text/javascript\"&gt;alert('Hello World!');&lt;/script&gt;\n";
+
+     public String getHtmlImports() {
+         String[] args = { getContext().getRequest().getContextPath() };
+         return MessageFormat.format(HTML_IMPORTS, args);
+     }
+}
+</pre>
+
+        After:
+        <pre class="prettyprint">
+public class MyPage extends BorderPage {
+
+    public List getHeadElements() {
+        // Cater for stateful pages. If you don't use stateful pages you don't need this
check
+        if (headElements == null) {
+            headElements = super.getHeadElements();
+            headElements.add(new CssImport("/js/mylib.css"));
+            headElements.add(new JsImport("/js/mylib.js"));
+
+            JsScript script = new JsScript();
+            script.setContent("alert('Hello World!');");
+            headElements.add(script);
+        }
+        return headElements;
+    }
+}
+</pre>
+      </li>
       <li class="change">
       	  Field disabled behavior has changed slightly. In previous versions,
           disabled fields were processed and validated which isn't the desired



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