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| <title>Chapter 5. What is new?</title><link rel="stylesheet" href="css/html.css" type="text/css"><meta name="generator" content="DocBook XSL Stylesheets V1.72.0"><link rel="start" href="index.html" title="Eclipse Gemini Blueprint Reference Guide"><link rel="up" href="introduction.html" title="Part I. Introduction"><link rel="prev" href="get-started.html" title="Chapter 4. Getting Started"><link rel="next" href="reference.html" title="Part II. Reference Documentation"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="chapter" lang="en"><div class="titlepage"><div><div><h2 class="title"><a name="what-is-new"></a>Chapter 5. What is new?</h2></div></div></div><p>While a relatively young project, each version of Gemini Blueprint (even minor ones) offers new functionality. This chapter is a guide to the new | |
| and improved feature and intended as a high-level, short summary. Please follow the appropriate links for more in-depth information.</p><div class="note" style="margin-left: 0.5in; margin-right: 0.5in;"><table border="0" summary="Note"><tr><td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="images/admons/note.png"></td><th align="left">Note</th></tr><tr><td align="left" valign="top">This section includes the updates from Spring Dynamic Modules (Spring DM) project and previous gemini blueprint versions.</td></tr></table></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="dm-2.0.0"></a>5.1. Gemini Blueprint 2.0.0+</h2></div></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.0.x:blueprint"></a>5.1.1. OSGi 5.x Blueprint Reference Implementation (RI)</h3></div></div></div><p>Gemini Blueprint served as the basis for the Blueprint Container specification, introduced by OSGi 5 Gemini Blueprint stands as the RI for the | |
| aforementioned specification, providing the Blueprint API and implementation out of the box. Various aspect of Gemini Blueprint have been adjusted for | |
| consistency to the Blueprint specification. For more information on the two models, see <a href="blueprint.html" title="Chapter 6. OSGi 4.2 Blueprint Container">Chapter 6, <i xmlns:xlink="http://www.w3.org/1999/xlink">OSGi 4.2 Blueprint Container</i></a> for more information.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.0.x:jdk5"></a>5.1.2. Java 7</h3></div></div></div><p>Gemini Blueprint requires <a xmlns:xlink="http://www.w3.org/1999/xlink" href="https://java.sun.com/j2se/1.7.0/" target="_top">JDK 7</a> to run (or compile). The framework code has been | |
| revised to take advantage of the JDK 7 features.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.x:spring-3.x"></a>5.1.3. Spring 4.2.x</h3></div></div></div><p>Besides the Java 7 upgrade, Gemini Blueprint requires Spring 4.2.x to get access to the latest framework features and JDK optimizations.</p></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="dm-2.0.x"></a>5.2. Gemini Blueprint 1.x</h2></div></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.x:blueprint"></a>5.2.1. OSGi 4.2 Blueprint Reference Implementation (RI)</h3></div></div></div><p>Gemini Blueprint served as the basis for the Blueprint Container specification, introduced by OSGi 4.2. Gemini Blueprint stands as the RI for the | |
| aforementioned specification, providing the Blueprint API and implementation out of the box. Various aspect of Gemini Blueprint have been adjusted for | |
| consistency to the Blueprint specification. For more information on the two models, see <a href="blueprint.html" title="Chapter 6. OSGi 4.2 Blueprint Container">Chapter 6, <i xmlns:xlink="http://www.w3.org/1999/xlink">OSGi 4.2 Blueprint Container</i></a> for more information.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.x:jdk5"></a>5.2.2. Java 5</h3></div></div></div><p>Gemini Blueprint requires <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://java.sun.com/j2se/1.5.0/" target="_top">JDK 5</a> to run (or compile). The framework code has been | |
| revised to take advantage of the JDK 5 features such as language improvements, concurrency and generics: for example, various enum-like classes | |
| used by the exporter and importer API have been deprecated and replaced with proper Java 5<code class="classname">enum</code>s. | |
| Considerable effort has been spent to keep the code backwards compatible however, it is recommended to compile the code against the Gemini Blueprint 2.x | |
| code and perform sanity checks before upgrading.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.x:spring-3.x"></a>5.2.3. Spring 3.x</h3></div></div></div><p>Besides the Java 5 upgrade, Gemini Blueprint requires Spring 3.x to get access to the latest framework features and JDK optimizations.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.x:imports"></a>5.2.4. Service Importer Improvements</h3></div></div></div><p>Gemini Blueprint provides several improvements for service imports (whether single or collection based) in terms of speed, configuration and | |
| service lifecycle. <a href="service-registry.html#service-registry:refs" title="9.2. Defining References To OSGi Services">Section 9.2, “Defining References To OSGi Services”</a> provides more details. </p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-2.0.x:security"></a>5.2.5. Java 2 Security Integration</h3></div></div></div><p>Continuing the work in Spring DM 1.2.x, Gemini Blueprint executes all user code using its credentials (the managed bundle permissions). | |
| See <a href="appendix-security.html" title="Appendix A. Security Integration">Appendix A, <i xmlns:xlink="http://www.w3.org/1999/xlink">Security Integration</i></a> for more information.</p></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h2 class="title" style="clear: both"><a name="dm-1.2.x"></a>5.3. Spring DM 1.2.x</h2></div></div></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-1.2.x:security"></a>5.3.1. Java 2 Security Integration</h3></div></div></div><p>Since 1.2.x, Spring DM is aware of <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://java.sun.com/javase/technologies/security/#overview" target="_top">secured</a> | |
| environments by making use of dedicated <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://java.sun.com/j2se/1.4.2/docs/guide/security/doprivileged.html" target="_top">privileged blocks</a> | |
| for executing security sensitive code. Thus, Spring DM can run as a <span class="emphasis"><em>trusted</em></span> library without requiring escalated | |
| permissions for its managed bundles. See <a href="appendix-security.html" title="Appendix A. Security Integration">Appendix A, <i xmlns:xlink="http://www.w3.org/1999/xlink">Security Integration</i></a> for more information.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-1.2.x:compendium"></a>5.3.2. Compendium Services Support</h3></div></div></div><p>1.2.x provides integration with the <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://www.osgi.org/javadoc/r4v401/org/osgi/service/cm/package-summary.html" target="_top">Configuration Admin</a>, | |
| part of the OSGi compendium services. <a href="compendium.html" title="Chapter 11. Compendium Services">Chapter 11, <i xmlns:xlink="http://www.w3.org/1999/xlink">Compendium Services</i></a> provides more details on the topic.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-1.2.x:sym-name-change"></a>5.3.3. Changed Spring DM Symbolic Names</h3></div></div></div><p>Since 1.2.0 M2, the Spring DM bundles symbolic names have been aligned with Spring's 2.5.6+. Thus the prefix | |
| <code class="literal">org.springframework.bundle.osgi</code> has been changed to <code class="literal">org.eclipse.gemini.blueprint</code>; for example | |
| Spring DM extender symbolic name was changed from <code class="literal">org.springframework.bundle.osgi.extender</code> to <code class="literal">org.eclipse.gemini.blueprint.extender</code> | |
| (notice the missing <code class="literal">bundle</code> word). Additionally, the documentation has been updated to reflect Spring 2.5.6+ symbolic names.</p></div><div class="section" lang="en"><div class="titlepage"><div><div><h3 class="title"><a name="dm-1.2.x:ebr-usage"></a>5.3.4. Usage of SpringSource Enterprise Bundle Repository (EBR)</h3></div></div></div><p>To minimize the number of repositories used and the confusion caused by OSGified vs non-OSGified artifacts especially to users using SpringSource dm Server, | |
| after 1.2.0 RC1, Spring DM aligned as many of its dependencies as possible with SpringSource <a xmlns:xlink="http://www.w3.org/1999/xlink" href="http://www.springsource.com/repository" target="_top">EBR</a>. | |
| In practice this means that Spring framework artifacts, such as <code class="literal">spring-aop.jar</code> can be now found as <code class="literal">org.springframework.aop.jar</code>; | |
| We apologize for any inconvenience created to users relying on these naming conventions.</p></div></div></div><div xmlns:fo="http://www.w3.org/1999/XSL/Format" class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="get-started.html">Prev</a> </td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right"> <a accesskey="n" href="reference.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">Chapter 4. Getting Started </td><td width="20%" align="center"><span style="color:white;font-size:90%;"><a href="http://www.SpringSource.com/" title="SpringSource - Spring from the Source">Sponsored by SpringSource | |
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