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From tfisc...@apache.org
Subject svn commit: r1523769 - in /db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference: defining-the-schema.xml running-the-generator.xml
Date Mon, 16 Sep 2013 19:28:10 GMT
Author: tfischer
Date: Mon Sep 16 19:28:10 2013
New Revision: 1523769

URL: http://svn.apache.org/r1523769
TORQUE-302 Describe generation of schema from database


Modified: db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/defining-the-schema.xml
URL: http://svn.apache.org/viewvc/db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/defining-the-schema.xml?rev=1523769&r1=1523768&r2=1523769&view=diff
--- db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/defining-the-schema.xml
+++ db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/defining-the-schema.xml
Mon Sep 16 19:28:10 2013
@@ -272,7 +272,7 @@
         createSql with the sql needed to create the sql.
-    <subsection name="examle schema file">
+    <subsection name="example schema file">
         For an example schema file conaining most of the discussed features,
         look at the bookstore-schema.xml from the test project.
@@ -402,5 +402,22 @@
+  <section name="Creating a schema from an existing database">
+    <p>
+      Torque can create a starting point for a schema file from an existing
+      database. For doing this, Torque uses the JDBC metainformation
+      provided by the database driver. Not all information about the 
+      schema can be collected from JDBC metainformation, so this can only
+      serve as a starting point.
+    </p>
+    <p>
+      See the information about
+      <a href="running-the-generator.html#Generation_of_XML_schema_from_an_existing_database">running
the Torque generator</a>
+      on how to generate a schema file from an existing database.
+    </p>

Modified: db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/running-the-generator.xml
URL: http://svn.apache.org/viewvc/db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/running-the-generator.xml?rev=1523769&r1=1523768&r2=1523769&view=diff
--- db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/running-the-generator.xml
+++ db/torque/torque4/trunk/torque-site/src/site/xdoc/documentation/orm-reference/running-the-generator.xml
Mon Sep 16 19:28:10 2013
@@ -409,6 +409,21 @@
         You may want to replace ${torque.database.schema} with the database 
         schema to read, if not please remove the line containing it.
+      <p>
+        Note that Torque relies on metainformation supplied by the database
+        driver for creating the schema file.
+        This metainformation does not contain all information which is
+        contained in the schema file, so the created file can only serve
+        as a starting point. 
+        The information which can be read from the database differs from 
+        database to database.
+        Table and column names can be read for almost every database.
+        Column types and primary key information is available 
+        for most databases, but there might be edge cases where type information
+        is not detailed enough to determine the correct column type.
+        Foreign key information and information about indices are typically
+        not read.
+      </p>

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