X-Git-Url: https://juplo.de/gitweb/?p=hibernate4-maven-plugin;a=blobdiff_plain;f=src%2Fsite%2Fapt%2Fpitfalls.apt;h=24909a5cc2ff02307ca63c4500a4996bc1cb0a5b;hp=5bbbff126e548669147a8eea55ab7c874bacb57a;hb=d38b2386641c7ca00f54d69cb3f576c20b0cdccc;hpb=4b507b15b0122ac180e44b8418db8d9143ae9c3a

diff --git a/src/site/apt/pitfalls.apt b/src/site/apt/pitfalls.apt
index 5bbbff12..24909a5c 100644
--- a/src/site/apt/pitfalls.apt
+++ b/src/site/apt/pitfalls.apt
@@ -1,5 +1,22 @@
 Known Pitfalls
 
+* hibernate4-maven-plugin always needs a database-connection
+
+  The default-configuration uses the EXPORT-target of the SchemaExport-Tool.
+  If you do not need to create a database with the evaluated schema, you can
+  use the NONE- or the SCRIPT-target.
+  This can be achieved with the command-line parameter
+  <<<-Dhibernate.export.target=SCRIPT>>> or with the following configuration:
+
+------------
+<configuration>
+  <target>SCRIPT</target>
+</configuration>
+------------
+
+  But even when no database is to be created, hibernate always needs to know
+  the dialect. Hence, the plugin will fail if this parameter is missing!
+
 * Dependency for driver-class XYZ is missing
 
   One regular problem is the scope of the jdbc-driver-dependency.
@@ -95,3 +112,45 @@ Known Pitfalls
   </configuration>
 </plugin>
 ------------
+
+* The database will not be recreated after a manual drop/clean
+
+  If one manually drops the database or removes the hsqldb-files, it will not
+  be recreated by the hibernate4-maven-plugin, because it cannot detect, that
+  the database needs to be recreated.
+  This happens, because the plugin will not recreate the database if neither
+  the configuration nor the annotated classes have changed, because an
+  unnecessary drop-create-cycle might take a long time. The plugin will
+  report that like this:
+
+-------------
+[INFO] No modified annotated classes found and dialect unchanged.
+[INFO] Skipping schema generation!
+-------------
+
+  If one always uses <<<mvn clean>>> for cleanup, this will not happen.
+  Otherwise the recreation must be {{{./force.html}forced}}:
+
+-------------
+mvn hibernate4:export -Dhibernate.export.force=true
+-------------
+
+* The hibernate4:export goal is not executed, when tests are skipped
+
+  The hibernate4-maven-plugin automatically skips its execution, when
+  <<<maven.test.skip>>> is set to <<<true>>>. If you need it to be always
+  executed, you can configure that explicitly like this:
+
+------------
+<plugin>
+  <groupId>de.juplo</groupId>
+  <artifactId>hibernate4-maven-plugin</artifactId>
+  ...
+  <configuration>
+    <skip>false</skip>
+  </configuration>
+</plugin>
+------------
+
+  Background-information for this design-decission can be found on the extra
+  page {{{./skip.html}To skip or not to skip: that is the question}}...
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