From 9e5b78b712826c3e9d93a860674ff1cae7d9bb0c Mon Sep 17 00:00:00 2001
From: Martin Goik <goik@hdm-stuttgart.de>
Date: Sat, 7 Jan 2017 23:26:44 +0100
Subject: [PATCH] Criteria / metamodel support
---
.../META-INF/maven/archetype-metadata.xml | 3 +-
.../resources/archetype-resources/Readme.md | 15 +++++
.../resources/archetype-resources/pom.xml | 65 +++++++++++++++++--
.../src/main/java/SearchByIcao.java | 65 +++++++++++++++++++
.../src/main/java/model/Airline.java | 4 ++
.../main/resources/META-INF/persistence.xml | 27 ++++++++
6 files changed, 171 insertions(+), 8 deletions(-)
create mode 100644 ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/Readme.md
create mode 100644 ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/SearchByIcao.java
diff --git a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/META-INF/maven/archetype-metadata.xml b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/META-INF/maven/archetype-metadata.xml
index ff2b99160..97f0e0d1c 100644
--- a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/META-INF/maven/archetype-metadata.xml
+++ b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/META-INF/maven/archetype-metadata.xml
@@ -22,9 +22,10 @@
</includes>
</fileSet>
<fileSet encoding="UTF-8">
- <directory></directory>
+ <directory/>
<includes>
<include>.gitignore</include>
+ <include>Readme.md</include>
</includes>
</fileSet>
</fileSets>
diff --git a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/Readme.md b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/Readme.md
new file mode 100644
index 000000000..1341328e0
--- /dev/null
+++ b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/Readme.md
@@ -0,0 +1,15 @@
+JPA 2 project template
+======================
+
+General:
+--------
+Executing »`mvn test`« generates metamodel classes being required for
+criteria based queries.
+
+
+Eclipse users:
+--------------
+You will have to execute »`mvn test`« manually from the command line or by right
+clicking on your project's root choosing »`Run As`« - - > »`Maven test`«. This will
+trigger the metamodel generating process resolving a compile time error in
+class »`SearchByIcao`«.
\ No newline at end of file
diff --git a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/pom.xml b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/pom.xml
index 0bde95906..69892d78f 100644
--- a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/pom.xml
+++ b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/pom.xml
@@ -19,8 +19,8 @@
<dependency>
<groupId>org.hibernate</groupId>
- <artifactId>hibernate-entitymanager</artifactId>
- <version>5.1.0.Final</version>
+ <artifactId>hibernate-core</artifactId>
+ <version>5.2.5.Final</version>
</dependency>
<dependency>
@@ -39,11 +39,11 @@
<dependency>
<groupId>org.apache.logging.log4j</groupId>
<artifactId>log4j-core</artifactId>
- <version>2.6</version>
+ <version>2.7</version>
</dependency>
- <!-- Required for executable jar generation to avoid ClassNotFoundException: com.fasterxml.jackson.core.type.TypeReference
- and similar dependency problems. -->
+ <!-- Required for executable jar generation to avoid ClassNotFoundException:
+ com.fasterxml.jackson.core.type.TypeReference and similar dependency problems. -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
@@ -58,17 +58,68 @@
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
- <version>3.5.1</version>
+ <version>3.6.0</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
+ <compilerArgument>-proc:none</compilerArgument>
</configuration>
</plugin>
+ <plugin>
+ <groupId>org.bsc.maven</groupId>
+ <artifactId>maven-processor-plugin</artifactId>
+ <version>3.2.0</version>
+
+ <executions>
+ <execution>
+ <id>process</id>
+ <goals>
+ <goal>process</goal>
+ </goals>
+ <phase>generate-sources</phase>
+ <configuration>
+ <outputDirectory>${project.build.directory}/metamodel</outputDirectory>
+ <processors>
+ <processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
+ </processors>
+ </configuration>
+ </execution>
+ </executions>
+ <dependencies>
+ <dependency>
+ <groupId>org.hibernate</groupId>
+ <artifactId>hibernate-jpamodelgen</artifactId>
+ <version>5.2.5.Final</version>
+ </dependency>
+ </dependencies>
+ </plugin>
+
+ <!-- Build helper plugin to add generated sources to classpath -->
+ <plugin>
+ <groupId>org.codehaus.mojo</groupId>
+ <artifactId>build-helper-maven-plugin</artifactId>
+ <version>1.12</version>
+ <executions>
+ <execution>
+ <id>add-source</id>
+ <phase>generate-sources</phase>
+ <goals>
+ <goal>add-source</goal>
+ </goals>
+ <configuration>
+ <sources>
+ <source>${project.build.directory}/metamodel</source>
+ </sources>
+ </configuration>
+ </execution>
+ </executions>
+ </plugin>
+
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
- <version>2.10.3</version>
+ <version>2.10.4</version>
<configuration />
</plugin>
diff --git a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/SearchByIcao.java b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/SearchByIcao.java
new file mode 100644
index 000000000..08f4de4e9
--- /dev/null
+++ b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/SearchByIcao.java
@@ -0,0 +1,65 @@
+#set( $symbol_pound = '#' )
+#set( $symbol_dollar = '$' )
+#set( $symbol_escape = '\' )
+package ${package};
+
+import java.util.List;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+import javax.persistence.criteria.CriteriaBuilder;
+import javax.persistence.criteria.CriteriaQuery;
+import javax.persistence.criteria.Root;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
+
+import ${package}.model.Airline;
+import ${package}.model.Airline_;
+
+public class SearchByIcao {
+ static final Logger log = LogManager.getLogger(SearchByIcao.class);
+
+ // This refers to a corresponding entry <persistence-unit name="entitytemplatePU_nocreate">
+ // in META-INF/persistence.xml
+ static public final String PERSISTENCE_UNIT_NAME = "entitytemplatePU_nocreate";
+ /**
+ * @param args Unused
+ */
+ public static void main( String[] args ) {
+
+
+ final EntityManagerFactory factory = Persistence.createEntityManagerFactory(PERSISTENCE_UNIT_NAME);
+ final EntityManager em = factory.createEntityManager();
+ final CriteriaBuilder builder = factory.getCriteriaBuilder();
+
+ log.info("Read airlines by icao code");
+ em.getTransaction().begin();
+
+
+ final CriteriaQuery<Airline> criteria = builder.createQuery( Airline.class );
+ final Root<Airline> airlineRoot = criteria.from( Airline.class );
+ criteria.select( airlineRoot );
+
+ // The subsequent line of code requires "mvn test" or equivalent triggering the metamodel generator
+ // when working in Eclipse. You may want to right click on your project root choosing
+ //
+ // "Run As" --> "Maven test".
+ //
+ // This step is being required whenever changes to your model classes in mi.intro.jpastart.model happen.
+
+ criteria.where(builder.equal( airlineRoot.get( Airline_.icaoCode), "DLH" ));
+ final List<Airline> airlines = em.createQuery( criteria ).getResultList();
+ for ( Airline person : airlines ) {
+ System.out.println(person);
+ }
+ em.getTransaction().commit();
+ log.info("Read completed");
+
+ em.close();
+
+ factory.close();
+ }
+}
\ No newline at end of file
diff --git a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/model/Airline.java b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/model/Airline.java
index c2ea4e5f5..1c51dcaa4 100644
--- a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/model/Airline.java
+++ b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/java/model/Airline.java
@@ -30,4 +30,8 @@ public class Airline {
public String getIcaoCode() {
return icaoCode;
}
+ @Override
+ public String toString() {
+ return name + " (" + icaoCode + ")";
+ }
}
diff --git a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/resources/META-INF/persistence.xml b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/resources/META-INF/persistence.xml
index 045f5015d..73e85f068 100644
--- a/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/resources/META-INF/persistence.xml
+++ b/ws/Archetypes/mi-maven-archetype-jpa-hibernate/src/main/resources/archetype-resources/src/main/resources/META-INF/persistence.xml
@@ -67,4 +67,31 @@
</properties>
</persistence-unit>
+ <!-- The subsequent persistence unit won't modify the database's schema
+ javax.persistence.schema-generation.database.action=none
+ -->
+ <persistence-unit name="entitytemplatePU_nocreate">
+
+ <exclude-unlisted-classes>false</exclude-unlisted-classes>
+
+ <properties>
+ <property name="javax.persistence.jdbc.driver" value="com.mysql.jdbc.Driver"/>
+ <property name="javax.persistence.jdbc.url" value="jdbc:mysql://localhost:3306/hdm?useSSL=false"/>
+ <property name="javax.persistence.jdbc.user" value="hdmuser"/>
+ <property name="javax.persistence.jdbc.password" value="XYZ"/>
+
+ <property
+ name="javax.persistence.schema-generation.database.action"
+ value="none"/>
+
+ <property name="hibernate.format_sql" value="true"/>
+ <property name="hibernate.use_sql_comments" value="true"/>
+
+ <property name="hibernate.dialect" value="org.hibernate.dialect.MySQL5InnoDBDialect" />
+
+ <property name="hibernate.archive.autodetection" value="class"/>
+
+ </properties>
+ </persistence-unit>
+
</persistence>
--
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