Make it easier to launch HSQLDB server - just use -Dbatch.jdbc.url= on the command line.

spring-batch-samples/src/main/resources/batch.properties

@@ -2,7 +2,8 @@
 #    for HSQLDB:
 batch.jdbc.driver=org.hsqldb.jdbcDriver
 batch.jdbc.url=jdbc:hsqldb:mem:testdb;sql.enforce_strict_size=true
-# use this one for a separate server process (so you can inspect the results)
+# use this one for a separate server process so you can inspect the results
+# (or add it to system properties with -D to override at run time).
 # batch.jdbc.url=jdbc:hsqldb:hsql://localhost:9005/samples
 batch.jdbc.user=sa
 batch.jdbc.password=
@@ -23,11 +24,3 @@ batch.database.incrementer.class=org.springframework.jdbc.support.incrementer.Hs
 # Bean Properties for override
 #   for HSQLDB:
 incrementerParent.columnName=ID
-
-# Switch Dao implementations
-# batch.jobdao=hibernateJobDao
-# batch.stepdao=hibernateStepDao
-# batch.transaction.manager=hibernateTransactionManager
-batch.jobdao=sqlJobDao
-batch.stepdao=sqlStepDao
-batch.transaction.manager=sqlTransactionManager

spring-batch-samples/src/main/resources/data-source-context.xml

@@ -28,13 +28,14 @@
 			<bean class="java.lang.System" factory-method="getProperties"/>
 		</property>
 		<property name="ignoreInvalidKeys" value="true" />
-		<property name="order" value="1"/>
+		<property name="order" value="2"/>
 	</bean>
 
 	<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
 		<property name="location" value="classpath:batch.properties" />
+		<property name="systemPropertiesModeName" value="SYSTEM_PROPERTIES_MODE_OVERRIDE"/>
 		<property name="ignoreUnresolvablePlaceholders" value="false" />
-		<property name="order" value="2"/>
+		<property name="order" value="1"/>
 	</bean>
 
 	<bean id="incrementerParent" class="${batch.database.incrementer.class}" abstract="true">