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Build
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<h1>Build</h1>
<a href="#portability">
Portability</a><br />
<a href="#environment">
Environment</a><br />
<a href="#building">
Building the Software</a><br />
<a href="#build_targets">
Build Targets</a><br />
<a href="#maven2">
Using Maven 2</a><br />
<a href="#translating">
Translating</a><br />
<a href="#providing_patches">
Providing Patches</a><br />
<br /><a name="portability"></a>
<h2>Portability</h2>
<p>
This database is written in Java and therefore works on many platforms.
It can also be compiled to a native executable using GCJ.
</p>
<br /><a name="environment"></a>
<h2>Environment</h2>
<p>
A Java Runtime Environment (JRE) version 1.4 or higher is required to run this database.
</p>
<p>
To build the database executables, the following software stack was used.
Newer version or compatible software works too.
</p>
<ul><li>Mac OS X and Windows XP
</li><li>Sun JDK Version 1.4, 1.5, and 1.6
</li><li>Eclipse Version 3.4
</li><li>Eclipse Plugins: Subclipse 1.4.6, EclEmma Java Code Coverage 1.3.0, Eclipse Checkstyle Plug-in 4.4.2
</li><li>Mozilla Firefox 3.0
</li><li>OpenOffice 3.0
</li><li>NSIS 2.38 (Nullsoft Scriptable Install System)
</li><li>Maven 2.0.9
</li><li>YourKit Java Profiler
</li></ul>
<br /><a name="building"></a>
<h2>Building the Software</h2>
<p>
You need to install a JDK, for example the Sun JDK version 1.4, 1.5 or 1.6.
On the command line, go to the directory h2 and execute the following command:
</p>
<pre>
build -?
</pre>
<p>
For Linux and OS X, use <code>./build.sh</code> instead of <code>build</code>.
</p>
<p>
You will get a list of targets. If you want to build the jar file, execute (Windows):
</p>
<pre>
build jar
</pre>
<h3>Switching the Source Code</h3>
<p>
By default the source code uses Java 1.6 features, however Java 1.4 and 1.5 are supported as well.
To disable Java 1.6 specific features, run:
</p>
<pre>
build switchSource
</pre>
<br /><a name="build_targets"></a>
<h2>Build Targets</h2>
<p>
The build system can generate smaller jar files as well. The following targets are currently supported:
</p>
<ul><li>jarClient: Create the h2client.jar. This only contains the remote JDBC implementation.
</li><li>jarSmall: Create the file h2small.jar. This only contains the embedded database. Debug information is disabled.
</li><li>jarJaqu: Create the file h2jaqu.jar. This only contains the JaQu (Java Query) implementation. All other jar files do not include JaQu.
</li><li>javadocImpl: Create the Javadocs of the implementation.
</li></ul>
<p>
To create the h2client.jar file, go to the directory h2 and execute the following command:
</p>
<pre>
build jarClient
</pre>
<br /><a name="maven2"></a>
<h2>Using Maven 2</h2>
<h3>Using a Central Repository</h3>
<p>
You can include the database in your Maven 2 project as a dependency.
Example:
</p>
<pre>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>${version}</version>
</dependency>
</pre>
<p>
New versions of this database are first uploaded to http://hsql.sourceforge.net/m2-repo/ and then automatically
synchronized with the main maven repository; however after a new release it may take a few hours before
they are available there.
</p>
<h3>Using Snapshot Version</h3>
<p>
To build a 'snapshot' H2 .jar file and upload it the to the local Maven 2 repository, execute the following command:
</p>
<pre>
build mavenInstallLocal
</pre>
<p>
Afterwards, you can include the database in your Maven 2 project as a dependency:
</p>
<pre>
<dependency>
<groupId>com.h2database</groupId>
<artifactId>h2</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
</pre>
<br /><a name="translating"></a>
<h2>Translating</h2>
<p>
The translation of this software is split into the following parts:
</p>
<ul>
<li>H2 Console: src/main/org/h2/server/web/res/_text_*.properties
</li><li>Error messages: src/main/org/h2/res/_messages_*.properties
</li><li>Web site: src/docsrc/text/_docs_*.utf8.txt
</li></ul>
<p>
To translate the H2 Console, start it and select Options / Translate.
The conversion between UTF-8 and Java encoding (using the \u syntax), as well as the HTML entities (&#..;)
is automated by running the tool PropertiesToUTF8. The web site translation is automated as well,
using <code>build docs</code>.
</p>
<br /><a name="providing_patches"></a>
<h2>Providing Patches</h2>
<p>
If you like to provide patches, please consider the following guidelines to simplify merging them:
</p>
<ul><li>Only use Java 1.4 features (do not use Java 1.5 or 1.6) (see Environment).
</li><li>Follow the coding style used in the project, use Checkstyle (see above) to check the coding style.
The checkstyle configuration is in <code>src/installer/checkstyle.xml</code>.
</li><li>Please provide test cases and integrate them into the test suite.
For Java level tests, see <code>src/test/org/h2/test/TestAll.java</code>.
For SQL level tests, see <code>src/test/org/h2/test/test.in.txt</code> or <code>testSimple.in.txt</code>.
</li><li>The test cases should cover at least 90% of the changed and new code; use a code coverage tool to verify that (see above).
</li><li>Verify that you did not break other features: Run the test cases by executing <code>build test</code>.
</li><li>Provide end user documentation if required (<code>src/docsrc/html/*</code>).
</li><li>Document grammar changes in <code>src/main/org/h2/res/help.csv</code>
</li><li>Provide a change log entry (<code>src/docsrc/html/changelog.html</code>).
</li><li>Verify the spelling using <code>build spellcheck</code>. If required
add the new words to <code>src/tools/org/h2/build/doc/dictionary.txt</code>.
</li><li>Verify the formatting using <code>build docs</code> and <code>build javadoc</code>.
</li><li>Submit patches as .patch files (compressed if big). To create a patch, use for example Eclipse Team/Create Patch.
</li></ul>
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