DataNucleus annotation processor for generating "Q" classes for use with JDOQLTyped queries
Home Page: http://www.datanucleus.org/products/accessplatform/jdo/query.html#jdoql_typed
We currently just have explicit handling for primitives and java.math.BigXXX classes. We should treat primitive wrappers explicitly too, since the javax.lang.model.type classes treat them as different to primitive for some reason
Currently when we have an Optional<String> field in the persistent class we just create a field in the Q class like this
OptionalExpression myField = new OptionalExpressionImpl(this, "myField");
We should create
OptionalExpression<String> myField = new OptionalExpressionImpl<String>(this, "myField");
If entities contain JSR0303 annotations the generated Q... classes are invalid:
@NotNull
private UUID id;
leads to:
public final ObjectExpression<(@javax.validation.constraints.NotNull :: java.util.UUID)> id;
and annotations are not allowed there.
If we have a field type that has no specific XXXExpression then it is rolled into a field of type
ObjectExpression<{the_type}>
We currently include generic type info in {the_type}. Best to omit it.
The fix for issue 5 tried to trap the case of an annotated member having the annotation in the TypeMirror (for some reason). All that was done was convert to its element, then the underlying type (which removed the annotations). This can impact on detection of other types, so we need to be more careful in the trap.
Hi.
I tried to execute a code like this, and I got a stack trace.
JDOPersistenceManager jdopm = (JDOPersistenceManager) pm;
QProductClass cand = QProductClass.candidate();
JDOQLTypedQuery<Product> tq = jdopm.newJDOQLTypedQuery(Product.class);
List<Product> prods = tq.filter(cand.name.ne(value)).executeList();
The stacktrace;
Jan 03, 2018 8:01:14 PM com.hop.tub.servlets.TuListDataServlet doPost
SEVERE: null
org.neo4j.graphdb.QueryExecutionException: Unknown operation '!=' (you probably meant to use '<>', which is the operator for inequality testing) (line 1, column 95 (offset: 94))
"START this=node:DN_TYPES(class="com.hop.tub.neo4j.jdo.model.Product") WHERE (this.name != "ampiclox") RETURN this"
^
at org.neo4j.kernel.impl.query.QueryExecutionKernelException.asUserException(QueryExecutionKernelException.java:35)
at org.neo4j.kernel.impl.factory.ClassicCoreSPI.executeQuery(ClassicCoreSPI.java:84)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacade.execute(GraphDatabaseFacade.java:369)
at org.neo4j.kernel.impl.factory.GraphDatabaseFacade.execute(GraphDatabaseFacade.java:359)
at org.datanucleus.store.neo4j.Neo4jUtils.executeCypherQuery(Neo4jUtils.java:319)
at org.datanucleus.store.neo4j[DEBUG] 2018-01-03 20:01:14.011 [qtp1955990522-86] Transaction - Transaction rolled back in 3 ms
.eq() works but .ne() does not work. Any help?
And is there any way to search if an object contains a value?
I'm in the midst of setting up a JavaFX project with Datanucleu + JDO + JDOQL. I've got the first two parts working without issue, I've got a connection to the database, I can read and write no issues. When I go to add the JDOQL step, along with the maven plugin the compile fails with the following error.
Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.0:compile (default-compile) on project projectName: Fatal error compiling: java.lang.NoClassDefFoundError: javax/jdo/annotations/PersistenceCapable: javax.jdo.annotations.PersistenceCapable -> [Help 1]
I'm running OpenJDK 13, JavaFX 14 and the latest version of most datanucleus plugins/dependencies. I've got the persistence XML configured and that picks up alright, I'm setting properties inside that file as well.
I'm at a complete loss as to what the issue might be, I've compared my code to the examples and it seems basically identical. It seems like it can't find the dependencies for the JDO annotations, which doesn't make sense because it worked before adding this plugin. At this point, I'm thinking it is possibly a bug in the latest version(I have tried a few of the older versions as well)
Any guidance would be great!
Here is my POM.XML
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.redacted</groupId>
<artifactId>redacted</artifactId>
<version>1.0.0-SNAPSHOT</version>
<properties>
<config.files.dir>${basedir}/src/main/resources</config.files.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>11</maven.compiler.source>
<maven.compiler.target>11</maven.compiler.target>
<openjfx.Version>14</openjfx.Version>
<openjfx.Maven.Version>0.0.4</openjfx.Maven.Version>
</properties>
<dependencies>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-core</artifactId>
<version>[5.1.6, 5.9)</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-api-jdo</artifactId>
<version>5.2.3</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-rdbms</artifactId>
<version>[5.1.6, 5.9)</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>javax.jdo</artifactId>
<version>3.2.0-m13</version>
</dependency>
<dependency>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-jdo-query</artifactId>
<version>[5.0.9, )</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>[1.2.17, )</version>
</dependency>
<dependency>
<groupId>org.xerial</groupId>
<artifactId>sqlite-jdbc</artifactId>
<version>3.30.1</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-controls</artifactId>
<version>${openjfx.Version}</version>
</dependency>
<dependency>
<groupId>org.openjfx</groupId>
<artifactId>javafx-fxml</artifactId>
<version>${openjfx.Version}</version>
</dependency>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-engine</artifactId>
<version>5.4.0</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.testfx</groupId>
<artifactId>testfx-junit5</artifactId>
<version>4.0.16-alpha</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.13.2</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>${basedir}/src/main/resources</directory>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.datanucleus</groupId>
<artifactId>datanucleus-maven-plugin</artifactId>
<version>5.2.1</version>
<configuration>
<persistenceUnitName>CentralUnit</persistenceUnitName>
<api>JDO</api>
<!-- <props>${config.files.dir}/datanucleus.properties</props>-->
<log4jConfiguration>${config.files.dir}/log4j.properties</log4jConfiguration>
<verbose>true</verbose>
</configuration>
<executions>
<execution>
<phase>process-classes</phase>
<goals>
<goal>enhance</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>com.redacted.App.Main</mainClass>
<systemProperties>
<systemProperty>
<key>log4j.configuration</key>
<value>file:${config.files.dir}/log4j.properties</value>
</systemProperty>
</systemProperties>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.8.0</version>
<configuration>
<release>11</release>
<compilerArgument>-AqueryMode=FIELD</compilerArgument>
</configuration>
</plugin>
<plugin>
<artifactId>maven-clean-plugin</artifactId>
<version>3.0.0</version>
<configuration>
<filesets>
<fileset>
<directory>${basedir}</directory>
<includes>
<include>*.log</include>
<include>*.ods</include>
</includes>
</fileset>
</filesets>
</configuration>
</plugin>
<plugin>
<groupId>org.openjfx</groupId>
<artifactId>javafx-maven-plugin</artifactId>
<version>${openjfx.Maven.Version}</version>
<configuration>
<mainClass>es.deusto.App</mainClass>
</configuration>
</plugin>
<plugin>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.22.1</version>
</plugin>
<plugin>
<artifactId>maven-deploy-plugin</artifactId>
<version>2.8.2</version>
</plugin>
<plugin>
<artifactId>maven-site-plugin</artifactId>
<version>3.7.1</version>
</plugin>
<plugin>
<artifactId>maven-project-info-reports-plugin</artifactId>
<version>3.0.0</version>
</plugin>
</plugins>
</build>
</project>
My persistnce.XML
<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://xmlns.jcp.org/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence
http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd" version="2.1">
<!-- JDO tutorial "unit" -->
<persistence-unit name="CentralUnit">
<class>es.deusto.User</class>
<exclude-unlisted-classes/>
<properties>
<property name="javax.jdo.option.ConnectionURL" value="jdbc:sqlite:src/main/resources/database.db"/>
<property name="javax.jdo.PersistenceManagerFactoryClass" value="org.datanucleus.api.jdo.JDOPersistenceManagerFactory"/>
<property name="datanucleus.schema.autoCreateAll" value="true"/>
<property name="datanucleus.validateTables" value="true"/>
<property name="datanucleus.validateConstraints" value="true"/>
<property name="datanucleus.metadata.validate" value="false"/>
</properties>
</persistence-unit>
</persistence>
My User class
import javax.jdo.annotations.PersistenceCapable;
import javax.jdo.annotations.Persistent;
import javax.jdo.annotations.PrimaryKey;
import java.util.Date;
@PersistenceCapable
//@Inheritance(strategy= InheritanceStrategy.NEW_TABLE)
public class User {
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.INCREMENT)
protected long id;
protected String firstName;
protected String lastName;
protected String notes;
protected String phoneNumber;
protected Date birthDate;
protected Date dateJoined;
protected Date createdAt;
protected Date updatedAt;
protected User(){};
//Omitted all the getters and setters```
Why they move classes in a JRE I've no idea. Needs a new version of the query processor for use with java9+
Should only create fields in the Q class for persistent fields
If we have a field like
@Min(1)
private Integer myField;
this can sometimes come through the type.toString() as
@javax.validation.constraints.Min(1L) java.lang.Integer
No idea why, because javax.jdo annotations are stripped off.
Seen when using Java9+
Allows us to mark them as generated classes, and the origin of the generation
We currently don't detect enum fields, and so they become ObjectExpression(Impl)
The annotation processor mechanism is designed for annotated classes (hint: look at the name of the interface and its package). That said, if you set
@SupportedAnnotationTypes("*")
then it will be called for every class. We could try to find all XML metadata files, parse them, and generate the query class for each XML defined class.
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