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| <document url="release-notes-1.0-b2.html"> |
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| <title>Struts Release Notes (Version 1.0-beta-2)</title> |
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| <body> |
| |
| <section name="Introduction" href="Introduction"> |
| |
| <p>This document contains the release notes for |
| <strong>Version 1.0-beta-2</strong> of the Struts Framework, |
| and covers changes that have taken place since |
| <a href="release-notes-1.0-b1.html">Version 1.0-beta-1</a> |
| was released. The following sections cover |
| <a href="#New">New Features</a> and <a href="#Changes">Changes</a> |
| to Struts.</p> |
| |
| </section> |
| |
| |
| <section name="What's Included?" href="Included"> |
| |
| <p>The binary distribution of this release includes the following |
| files relevant to Struts 1.0:</p> |
| <ul> |
| <li><code>INSTALL</code> - Brief installation instructions. See |
| the <code>Struts Documentation Application</code>, or online at |
| <a href="http://jakarta.apache.org/struts/">http://jakarta.apache.org/struts/</a> |
| for more information.</li> |
| <li><code>LICENSE</code> - The Apache Software Foundation license that |
| defines the terms under which you can use Struts (and other software |
| licensed by Apache).</li> |
| <li><code>README</code> - A brief introduction to Struts.</li> |
| <li><code>lib/</code> - Directory containing files you will need in |
| your own applications. The individual files of interest are: |
| <ul> |
| <li><code>struts.jar</code> - JAR file that contains the compiled |
| Java classes for both version 0.5 and 1.0 of Struts. You must |
| place this file in the <code>/WEB-INF/lib</code> directory of |
| your web application.</li> |
| <li><code>struts-xxxxx.tld</code> - The tag library descriptor files |
| for the Struts 1.0 tag libraries (bean, html, logic, and |
| template). You must place these files in the <code>/WEB-INF</code> |
| directory of your web application, and reference them with |
| appropriate <code><taglib></code> directives in your |
| web.xml file. <strong>NOTE</strong> - The struts-form.tld |
| file is deprecated; you should use the struts-html.tld file |
| instead.</li> |
| <li><code>jdbc2_0-stdext.jar</code> - The JDBC 2.0 Optional Package |
| API classes (package <code>javax.sql</code>). You will need to |
| include this file in the <code>/WEB-INF/lib</code> directory |
| of your application, if it is not already made visible to web |
| applications by your servlet container.</li> |
| <li><code>struts-config_1_0.dtd</code> - The document type descriptor |
| (DTD) for the Struts configuration file (which is typically named |
| <code>/WEB-INF/struts-config.xml</code>. Your configuration file |
| will be validated against an internal copy of this DTD -- this |
| copy is available for reference purposes only.</li> |
| <li><code>web-app_2_2.dtd</code> - The document type descriptor (DTD) |
| for web.xml files conforming to the Servlet 2.2 specification. |
| This copy is for reference purposes only.</li> |
| <li><code>web-app_2_3.dtd</code> - The document type descriptor (DTD) |
| for web.xml files conforming to the Servlet 2.3 specification. |
| This copy is for reference purposes only.</li> |
| </ul></li> |
| <li><code>webapps/</code> - Web Application Archive (WAR) files for the |
| web applications that are included with Struts.</li> |
| </ul> |
| |
| <p>For backwards compatibility only, the binary distribution also |
| includes the following files that conform to the Struts 0.5 milestone |
| release APIs. Usage of these files and APIs is deprecated, and they |
| will be removed from releases after Struts 1.0:</p> |
| <ul> |
| <li><code>lib/</code> - Directory containing files you will need in |
| your own applications. The individual files of interest are: |
| <ul> |
| <li><code>struts.jar</code> - JAR file that contains the compiled |
| Java classes for both version 0.5 and 1.0 of Struts. You must |
| place this file in the <code>/WEB-INF/lib</code> directory of |
| your web application.</li> |
| <li><code>struts.tld</code> - The tag library descriptor file for |
| the 0.5 version of the Struts tags. You must place this file |
| in the <code>/WEB-INF</code> directory of your web application, |
| and reference it with appropriate <code><taglib></code> |
| directives in your web.xml file.</li> |
| </ul></li> |
| </ul> |
| |
| </section> |
| |
| |
| <section name="What's New?" href="New"> |
| |
| <p><strong>DEPRECATIONS</strong> - The entire custom tag library |
| that is documented in <code>struts.tld</code> has been deprecated. |
| These tags correspond to the Struts 0.5 functionality that is also |
| deprecated, and have been replaced (and considerably enhanced) in |
| the various individual tag libraries.</p> |
| |
| <p>The build procedure for compiling the Struts source distribution |
| has been revised, and now depends on having <strong>Ant 1.2</strong> |
| (or later) installed, with the <code>$ANT_HOME/bin</code> directory |
| on your path. Further information can be found in the |
| <a href="installation.html">Installation</a> documentation.</p> |
| |
| <p>The following new features have been added to the basic controller |
| framework (package <code>org.apache.struts.action</code>):</p> |
| <ul> |
| <li>You can now specify that an <code><action></code> element should |
| invoke an existing servlet or JSP page resource, rather than calling an |
| <code>Action</code> class, by using the <code>include</code> attribute |
| rather than the <code>type</code> attribute. The standard form bean |
| processing provided by the controller is still performed first, if you |
| have configured it, so the included resource can benefit from this |
| processing if it wishes to.</li> |
| <li>The <code>initDataSources()</code> method can now throw a |
| <code>ServletException</code> to report that an initialization error |
| has occurred. Previously, such errors were logged but otherwise |
| ignored.</li> |
| <li>It is now possible to integrate business logic that is already |
| encapsulated as a servlet or JSP page, via use of two new standard |
| actions: <code>org.apache.struts.actions.ForwardAction</code> and |
| <code>org.apache.struts.actions.IncludeAction</code>. These actions |
| let you take advantage of the standard processing performed by the |
| controller servlet (including form bean population and calling the |
| <code>validate()</code> method), but not have to write Java code to |
| perform (or wrap) the required business logic.</li> |
| <li>A wrapper class has been added around the standard |
| <code>HttpServletRequest</code> for handling multipart requests as |
| identically as possible to standard requests, including processing |
| request parameters, populating form beans, transaction tokens, and |
| checking for cancellations.</li> |
| </ul> |
| |
| <p>The following new features have been added to the utility classes |
| (package <code>org.apache.struts.util</code>):</p> |
| <ul> |
| <li><code>PropertyUtils</code> can now correctly locate public methods |
| defined in a nested interface that is implemented by a bean.</li> |
| <li><code>PropertyUtils</code> methods now throw |
| <code>IllegalArgumentException</code> when you pass a null |
| <code>bean</code> reference or property <code>name</code>.</li> |
| <li><strong>DEPRECATIONS</strong> - The following classes have been |
| deprecated in their entirety, because they will be replaced by |
| corresponding classes (with identical functionality) from the |
| <a href="http://jakarta.apache.org/commons">Jakarta Commons Project</a> |
| at some point after Struts 1.0 final release. The only change that |
| will ultimately be required in user code is to change the package |
| names on the <code>import</code> clauses: |
| <ul> |
| <li><code>org.apache.struts.util.FastArrayList</code></li> |
| <li><code>org.apache.struts.util.FastHashMap</code></li> |
| <li><code>org.apache.struts.util.FastTreeMap</code></li> |
| <li><code>org.apache.struts.util.BeanUtils</code></li> |
| <li><code>org.apache.struts.util.ConvertUtils</code></li> |
| <li><code>org.apache.struts.util.PropertyUtils</code></li> |
| </ul></li> |
| </ul> |
| |
| |
| <p>The following new features have been added to the |
| <em>struts-html</em> custom tag library (package |
| <code>org.apache.struts.taglib.html</code>):</p> |
| <ul> |
| <li>The <code><html:link></code> tag now accepts an optional |
| <code>anchor</code> attribute, to allow the inclusion of a |
| (possibly calculated) anchor ("#xxx") in the generated hyperlink.</li> |
| <li>The <code><html:base></code> tag now accepts an optional |
| <code>target</code> attribute.</li> |
| <li>The <code><html:image></code> tag now accepts an optional |
| <code>border</code> attribute, to define the border with around |
| this image.</li> |
| <li>You can now request that the <code><html:link></code> tag |
| include any current transaction control token in the generated |
| hyperlink, by specifying the <code>transaction</code> attribute |
| with a value of <code>true</code>.</li> |
| <li>The <code><html:options></code> tag now supports Enumeration |
| for the <code>collection</code> property.</li> |
| <li>The <code><html:form></code> tag now creates attributes for |
| the tag itself, and the form bean, in request scope instead of |
| page scope. Among other benefits, this allows you to nest the |
| fields of a form inside a separate page that is accessed via a |
| template or a <code><jsp:include></code> tag.</li> |
| <li>The <code>styleId</code> attribute has been added to all of the |
| tags where the corresponding <code>id</code> tag is relevant, to |
| identify a specific tag for the purposes of stylesheet references.</li> |
| <li>The <code><html:file></code> tag now supports the |
| <code>size</code> attribute to set the size of the file list |
| field.</li> |
| </ul> |
| |
| <p>The following new features have been added to the |
| <em>struts-logic</em> custom tag library (package |
| <code>org.apache.struts.taglib.logic</code>):</p> |
| <ul> |
| <li>The <code><logic:iterate></code> tag now supports Enumeration |
| for the <code>collection</code> property.</li> |
| <li>The <code><logic:iterate></code> tag now exposes the current |
| iteration index to nested tags, through a call to the |
| <code>getIndex()</code> method.</li> |
| </ul> |
| |
| <p>The following new features have been added to the |
| <em>struts-template</em> custom tag library (package |
| <code>org.apache.struts.taglib.template</code>):</p> |
| <ul> |
| <li>Attribute getter methods have been added to all of the custom |
| tag implementation classes to facilitate reuse.</li> |
| <li>The <code><template:get></code> tag now has an optional |
| "flush" attribute that causes the response to be committed prior |
| to performing the include, if set to "true". This allows working |
| around problems on broken servlet containers.</li> |
| </ul> |
| |
| <p>The following new features have been added to the Struts Documentation |
| application (and corresponding contents on the Struts web site):</p> |
| <ul> |
| <li>Platform specific installation notes for a wide variety of application |
| server and servlet container environments have been accumulated and |
| published.</li> |
| </ul> |
| |
| </section> |
| |
| |
| <section name="Changes and Bug Fixes" href="Changes"> |
| |
| <p>The following changes and bug fixes have occurred in the basic |
| controller framework (package <code>org.apache.struts.action</code>):</p> |
| <ul> |
| <li><code>DiskMultipartRequestHandler</code> now tries to retrieve the |
| temporary directory provided by the servlet container before all other |
| possible temporary directories.</li> |
| </ul> |
| |
| <p>The following changes and bug fixes have occurred in the utilities |
| (package <code>org.apache.struts.util</code>):</p> |
| <ul> |
| <li>The <code>computeURL()</code> method now returns a |
| <code>MalformedURLException</code> if a URL cannot be created. |
| Previously, this case returned <code>null</code> with no error |
| message, making some problems difficult to track down.</li> |
| </ul> |
| |
| <p>The following changes and bug fixes have occurred in the |
| <em>struts-html</em> custom tag library (package |
| <code>org.apache.struts.taglib.html</code>):</p> |
| <ul> |
| <li>The <code><html:image></code> tag now correctly generates a |
| closing double quote on the <code>name</code> attribute.</li> |
| <li>The <code><html:form></code> tag now generates a hyperlink |
| that includes any query parameters that were included in the original |
| hyperlink value.</li> |
| <li>The <code><html:link></code> tag now correctly places any |
| specified anchor ("#xxx") in the generated hyperlink.</li> |
| <li>The JavaScript code generated to implement the <code>focus</code> |
| attribute of the <code><html:form></code> tag now works even |
| when you use nested or indexed property expressions. Previously, |
| this would generate an invalid JavaScript reference to the field.</li> |
| <li>The <code><html:checkbox></code> tag now conforms to its |
| documentation, and sends the specified <code>value</code> to the |
| server if this checkbox is checked at submit time. In addition, a |
| default value of <code>on</code> is sent if no value attribute is |
| specified.</li> |
| <li>The hyperlinks created by the <code><html:link></code> and |
| <code><html:redirect></code> tags now properly omit the port |
| number if it is the default port for the current request scheme (80 |
| for http, or 443 for https). Among other things, this corrects |
| session management behavior on the standard port numbers.</li> |
| <li>The <code>focus</code> attribute of the <code><html:form></code> |
| tag now works when the corresponding input field is a radio button, |
| or is otherwise indexed.</li> |
| <li>The <code>disabled</code> and <code>readonly</code> attributes have |
| been added to all HTML-rendering tags where they are relevant.</li> |
| </ul> |
| |
| <p>The following changes and bug fixes have occurred in the |
| <em>struts-logic</em> custom tag library (package |
| <code>org.apache.struts.taglib.logic</code>):</p> |
| <ul> |
| <li>Hyperlink processing in the <code><logic:forward></code> |
| tag is now identical to that performed by the Struts Controller |
| Servlet when it processes an <code>ActionForward</code> that is |
| returned by an <code>Action</code>.</li> |
| </ul> |
| |
| <p>The following changes and bug fixes to the Struts Documentation |
| application (and corresponding contents on the Struts web site) have |
| occurred:</p> |
| <ul> |
| <li>The Java types of collections (and arrays) over which the |
| <code><logic:iterate></code> tag can run are now documented.</li> |
| <li>The <code><bean:define></code> documentation now mentions the |
| JSP 1.1 Specification restriction on using more than one |
| <code>id</code> attribute with the same value in the same page.</li> |
| </ul> |
| |
| <p>The following changes and bug fixes to the Struts Example Application |
| have occurred:</p> |
| <ul> |
| <li>The Java source code of these applications is now included in the |
| corresponding WAR files, in subdirectory <code>WEB-INF/src</code>.</li> |
| <li>Excessive filter() calls in <code>LinkSubscriptionTag</code> |
| have been eliminated.</li> |
| <li>Calls to the deprecated <code>BeanUtils.filter()</code> have been |
| replaced by calls to <code>ResponseUtils.filter()</code>.</li> |
| <li>Removed any attempt to save the pseudo-database at application |
| shutdown, because there is no portable mechanism to accomplish |
| this task.</li> |
| </ul> |
| |
| <p>The following changes and bug fixes to the Struts Template Example |
| Application have occurred:</p> |
| <ul> |
| <li>Refactored the example pages to eliminate the creation of redundant |
| <code><html></code>, <code><head></code>, and |
| <code><body></code> tags.</li> |
| <li>If <code><template:get></code> or |
| <code><template:insert></code> throws an exception, do not |
| overwrite any "real" exception that has already been saved.</li> |
| <li>The text of the various pages in the example has been updated so |
| that they are not identical.</li> |
| </ul> |
| |
| </section> |
| |
| |
| </body> |
| |
| </document> |
