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DATAJPA-17 - Initial port of Hades sample project and showcase project.
Added two sample projects to show usage of Spring Data JPA. The example project contains various test cases that demonstrate using the library in various flavours: - BasicSample - Plain API usage (no Spring container involved, CRUD methods only) - BasicFactory - Programatic usage of the JpaRepositoryFactory (no Spring container involved, CRUD + query methods) - SimpleUserRepositorySample - Namespace auto-discovery usage - UserRepositorySample - Namespace usage, using custom implementation - AuditingUserSample - shows the auditing features The second example is a showcase scenario demonstrating the amount of code you save when using Spring Data JPA over a plain JPA/Spring repository implementation. It contains a guide to transform the the code in "before" package to introduce Spring Data JPA step by step and finally end up with the "after" package.
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‎.gitignore

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.project
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.classpath
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.springBeans
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.settings/
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target/

‎pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.springframework.data.jpa.examples</groupId>
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<artifactId>spring-data-jpa-examples-parent</artifactId>
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<version>1.0.0.BUILD-SNAPSHOT</version>
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<packaging>pom</packaging>
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<name>Spring Data JPA sample projects</name>
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<description>Sample projects for Spring Data JPA</description>
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<url>http://www.springframework.org/spring-data</url>
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<inceptionYear>2010</inceptionYear>
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<modules>
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<module>spring-data-jpa-example</module>
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<module>spring-data-jpa-showcase</module>
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</modules>
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<developers>
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<developer>
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<id>gierke</id>
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<name>Oliver Gierke</name>
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<email>[email protected]</email>
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<url>http://www.olivergierke.de</url>
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</developer>
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</developers>
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<properties>
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<spring.version>3.0.5.RELEASE</spring.version>
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<jpa.version>2.0.0</jpa.version>
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<junit.version>4.8</junit.version>
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<hibernate.version>3.5.6-Final</hibernate.version>
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<slf4j.version>1.5.8</slf4j.version>
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<aspectj.version>1.6.8</aspectj.version>
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<jodatime.version>1.5.2</jodatime.version>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<version>2.3</version>
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<configuration>
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<source>1.6</source>
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<target>1.6</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>com.springsource.bundlor</groupId>
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<artifactId>com.springsource.bundlor.maven</artifactId>
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<version>1.0.0.RELEASE</version>
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<executions>
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<execution>
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<id>bundlor</id>
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<goals>
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<goal>bundlor</goal>
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</goals>
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<phase>process-classes</phase>
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</execution>
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</executions>
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<configuration>
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<failOnWarnings>true</failOnWarnings>
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</configuration>
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</plugin>
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</plugins>
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</build>
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<dependencies>
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<dependency>
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<groupId>org.springframework.data</groupId>
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<artifactId>spring-data-jpa</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>javax.persistence</groupId>
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<artifactId>com.springsource.javax.persistence</artifactId>
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<version>${jpa.version}</version>
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</dependency>
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<dependency>
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<groupId>junit</groupId>
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<artifactId>junit</artifactId>
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<version>${junit.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>log4j</groupId>
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<artifactId>log4j</artifactId>
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<version>1.2.16</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>spring-test</artifactId>
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<version>${spring.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-entitymanager</artifactId>
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<version>${hibernate.version}</version>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-log4j12</artifactId>
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<version>${slf4j.version}</version>
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<scope>runtime</scope>
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</dependency>
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<!-- HSQL -->
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<dependency>
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<groupId>org.hsqldb</groupId>
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<artifactId>com.springsource.org.hsqldb</artifactId>
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<version>1.8.0.9</version>
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<scope>runtime</scope>
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</dependency>
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<dependency>
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<groupId>joda-time</groupId>
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<artifactId>joda-time</artifactId>
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<version>${jodatime.version}</version>
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</dependency>
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<dependency>
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<groupId>org.aspectj</groupId>
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<artifactId>aspectjweaver</artifactId>
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<version>${aspectj.version}</version>
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<scope>runtime</scope>
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</dependency>
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</dependencies>
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<repositories>
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<repository>
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<id>jboss</id>
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<name>JBoss repository</name>
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<url>https://repository.jboss.org/nexus/content/repositories/releases</url>
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</repository>
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</repositories>
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</project>

‎spring-data-jpa-example/pom.xml

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<artifactId>spring-data-jpa-example</artifactId>
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<parent>
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<groupId>org.springframework.data.jpa.examples</groupId>
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<artifactId>spring-data-jpa-examples-parent</artifactId>
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<version>1.0.0.BUILD-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<name>Spring Data JPA sample</name>
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<description>Small sample project showing the usage of Sprign Data JPA.</description>
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<dependencies>
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<dependency>
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<groupId>org.springframework</groupId>
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<artifactId>org.springframework.aspects</artifactId>
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<version>${spring.version}</version>
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</dependency>
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</dependencies>
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<build>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-surefire-plugin</artifactId>
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<version>2.4.3</version>
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<configuration>
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<includes>
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<include>**/*.java</include>
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</includes>
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</configuration>
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</plugin>
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</plugins>
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</build>
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</project>

‎spring-data-jpa-example/src/main/java/org/springframework/data/jpa/example/auditing/AuditableUser.java

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package org.springframework.data.jpa.example.auditing;
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import javax.persistence.Entity;
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import org.springframework.data.domain.Auditable;
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import org.springframework.data.jpa.domain.AbstractAuditable;
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/**
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* User domain class that uses auditing functionality of Spring Data that can either
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* be aquired implementing {@link Auditable} or extend
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* {@link AbstractAuditable}.
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*
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* @author Oliver Gierke
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*/
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@Entity
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public class AuditableUser extends AbstractAuditable<AuditableUser, Long> {
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private static final long serialVersionUID = 1L;
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private String username;
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/**
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* Set's the user's name.
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*
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* @param username the username to set
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*/
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public void setUsername(String username) {
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this.username = username;
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}
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/**
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* Returns the user's name.
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*
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* @return the username
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*/
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public String getUsername() {
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return username;
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}
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}

‎spring-data-jpa-example/src/main/java/org/springframework/data/jpa/example/auditing/AuditorAwareImpl.java

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package org.springframework.data.jpa.example.auditing;
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import org.springframework.data.domain.AuditorAware;
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/**
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* Dummy implementation of {@link AuditorAware}. It will return the configured
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* {@link AuditableUser} as auditor on every call to
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* {@link #getCurrentAuditor()}. Normally you would access the applications
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* security subsystem to return the current user.
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*
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* @author Oliver Gierke
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*/
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public class AuditorAwareImpl implements AuditorAware<AuditableUser> {
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private AuditableUser auditor;
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/**
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* @param auditor the auditor to set
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*/
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public void setAuditor(AuditableUser auditor) {
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this.auditor = auditor;
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}
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/*
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* (non-Javadoc)
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*
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* @see org.springframework.data.domain.AuditorAware#getCurrentAuditor()
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*/
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public AuditableUser getCurrentAuditor() {
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return auditor;
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}
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}

‎spring-data-jpa-example/src/main/java/org/springframework/data/jpa/example/domain/User.java

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package org.springframework.data.jpa.example.domain;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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import javax.persistence.NamedQuery;
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import org.springframework.data.jpa.domain.AbstractPersistable;
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/**
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* Sample user class.
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*
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* @author Oliver Gierke
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*/
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@Entity
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@NamedQuery(name = "User.findByTheUsersName", query = "from User u where u.username = ?")
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public class User extends AbstractPersistable<Long> {
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private static final long serialVersionUID = -2952735933715107252L;
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@Column(unique = true)
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private String username;
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private String firstname;
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private String lastname;
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public User() {
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this(null);
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}
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/**
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* Creates a new user instance.
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*/
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public User(Long id) {
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this.setId(id);
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}
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/**
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* Returns the username.
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*
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* @return
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*/
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public String getUsername() {
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return username;
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}
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/**
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* @param username the username to set
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*/
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public void setUsername(String username) {
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this.username = username;
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}
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/**
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* @return the firstname
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*/
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public String getFirstname() {
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return firstname;
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}
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/**
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* @param firstname the firstname to set
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*/
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public void setFirstname(String firstname) {
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this.firstname = firstname;
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}
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/**
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* @return the lastname
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*/
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public String getLastname() {
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return lastname;
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}
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/**
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* @param lastname the lastname to set
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*/
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public void setLastname(String lastname) {
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this.lastname = lastname;
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}
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}

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