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Added sample code - ODSA for Java Devs - Spring Boot 3 + Data JPA P2 (#229)
* Added sample code - ODSA for Java Devs - Spring Boot 3 + Data JPA P2 * adjusted the number of initial connections * code sample adjustments * code sample adjustments * fix indentation * adjustment accepted, debugging properties removed * change year to 2024 + remove serial id attribute * update jdbc driver version to 23.6.0.24.10, address target dir * full technical explanation of topics --------- Co-authored-by: Jean de Lavarene <jean.de.lavarene@oracle.com>
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‎java/odsa-spring/README.md

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# odsa-spring
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[ODSA for Java Developers (Part 2) — Connecting to Oracle ADB from a Spring Boot 3 App with Spring Data JPA on Azure App Service](https://medium.com/oracledevs/odsa-for-java-developers-part-2-connecting-to-oracle-adb-from-a-spring-boot-3-0-b1ebb6296abc)

‎java/odsa-spring/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-parent</artifactId>
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<version>3.3.0</version>
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<relativePath /> <!-- lookup parent from repository -->
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</parent>
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<groupId>com.oracle.dev.jdbc</groupId>
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<artifactId>odsa-spring</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>odsa-spring</name>
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<description>ODSA for Java Developers - Connecting to Oracle ADB from a Spring
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Boot App on Azure</description>
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<properties>
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<java.version>21</java.version>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jpa</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>com.oracle.database.jdbc</groupId>
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<artifactId>ojdbc11-production</artifactId>
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<version>23.6.0.24.10</version>
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<type>pom</type>
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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.hibernate.orm.tooling</groupId>
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<artifactId>hibernate-enhance-maven-plugin</artifactId>
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<version>${hibernate.version}</version>
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<executions>
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<execution>
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<id>enhance</id>
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<goals>
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<goal>enhance</goal>
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</goals>
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<configuration>
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<enableLazyInitialization>true</enableLazyInitialization>
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<enableDirtyTracking>true</enableDirtyTracking>
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<enableAssociationManagement>true</enableAssociationManagement>
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</configuration>
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>org.graalvm.buildtools</groupId>
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<artifactId>native-maven-plugin</artifactId>
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</plugin>
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<plugin>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-maven-plugin</artifactId>
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</plugin>
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<!-- Azure App Service -->
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<plugin>
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<groupId>com.microsoft.azure</groupId>
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<artifactId>azure-webapp-maven-plugin</artifactId>
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<version>2.5.0</version>
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<configuration>
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<subscriptionId>YOUR_AZURE_SUBSCRIPTION_ID</subscriptionId>
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<resourceGroup>DBIntegration.Multicloud.ResourceGroup</resourceGroup>
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<appName>odsa-spring</appName>
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<pricingTier>B2</pricingTier>
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<region>westus</region>
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<runtime>
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<os>Linux</os>
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<webContainer>Java SE</webContainer>
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<javaVersion>Java 17</javaVersion>
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</runtime>
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<deployment>
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<resources>
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<resource>
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<type>jar</type>
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<directory>${project.basedir}/target</directory>
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<includes>
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<include>*.jar</include>
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</includes>
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</resource>
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</resources>
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</deployment>
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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>

‎java/odsa-spring/script/ODSASpringBoot.sql

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CREATE USER ODSA_USER IDENTIFIED BY <YOUR_PASSWORD>;
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ALTER USER ODSA_USER QUOTA 128M ON USERS;
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ALTER SESSION SET CURRENT_SCHEMA = ODSA_USER;
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CREATE TABLE Employee
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(id NUMBER(10) CONSTRAINT pk_employee PRIMARY KEY,
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name VARCHAR2(20),
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job VARCHAR2(20),
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salary NUMBER(10),
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commission NUMBER(10));
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INSERT INTO Employee VALUES(7369,'JOHN','CLERK',7902,NULL);
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INSERT INTO Employee VALUES(7499,'PETER','SALESMAN',7698,300);
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INSERT INTO Employee VALUES(7521,'JEFF','SALESMAN',7698,500);
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INSERT INTO Employee VALUES(7566,'MARK','MANAGER',7839,NULL);
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INSERT INTO Employee VALUES(7654,'MARTIN','SALESMAN',7698,1400);
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INSERT INTO Employee VALUES(7698,'ADAM','MANAGER',7839,NULL);
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INSERT INTO Employee VALUES(7782,'CLARK','MANAGER',7839,NULL);
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INSERT INTO Employee VALUES(7788,'SCOTT','ANALYST',7566,NULL);
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INSERT INTO Employee VALUES(7839,'KING','PRESIDENT',NULL);
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INSERT INTO Employee VALUES(7844,'TURNER','SALESMAN',0);
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INSERT INTO Employee VALUES(7876,'ADAMS','CLERK',7788,NULL);
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INSERT INTO Employee VALUES(7900,'JAMES','CLERK',7698,NULL);
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INSERT INTO Employee VALUES(7902,'FORD','ANALYST',7566,NULL);
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INSERT INTO Employee VALUES(7934,'MILLER','CLERK',7782,NULL);
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COMMIT;
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‎java/odsa-spring/src/main/java/com/oracle/dev/jdbc/odsa/spring/Employee.java

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/*
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Copyright (c) 2024, Oracle and/or its affiliates.
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This software is dual-licensed to you under the Universal Permissive License
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(UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
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2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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either license.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.oracle.dev.jdbc.odsa.spring;
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import java.util.Objects;
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import jakarta.persistence.Entity;
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import jakarta.persistence.GeneratedValue;
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import jakarta.persistence.Id;
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import jakarta.persistence.Table;
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@Entity
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@Table(name = "EMPLOYEE", schema = "<DB_SCHEMA>")
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public class Employee {
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private @Id @GeneratedValue Long id;
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private String name;
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private String job;
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private Integer salary;
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private Integer commission;
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public Employee() {
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}
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public Employee(Long id, String name, String job, Integer salary,
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Integer commission) {
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this.id = id;
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this.name = name;
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this.job = job;
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this.salary = salary;
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this.commission = commission;
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}
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public Long getId() {
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return id;
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}
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public void setId(Long id) {
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this.id = id;
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}
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public String getJob() {
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return job;
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}
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public void setJob(String job) {
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this.job = job;
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}
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public Integer getSalary() {
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return salary;
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}
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public void setSalary(Integer salary) {
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this.salary = salary;
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}
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public Integer getCommission() {
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return commission;
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}
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public void setCommission(Integer commission) {
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this.commission = commission;
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}
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@Override
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public int hashCode() {
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return Objects.hash(commission, id, job, name, salary);
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}
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@Override
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public boolean equals(Object obj) {
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if (this == obj)
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return true;
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if (obj == null)
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return false;
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if (getClass() != obj.getClass())
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return false;
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Employee other = (Employee) obj;
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return Objects.equals(commission, other.commission)
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&& Objects.equals(id, other.id) && Objects.equals(job, other.job)
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&& Objects.equals(name, other.name)
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&& Objects.equals(salary, other.salary);
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}
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public String toString() {
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return String.format("%20s %20s %20s %20s %20s", id, name, job, salary,
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commission);
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}
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}

‎java/odsa-spring/src/main/java/com/oracle/dev/jdbc/odsa/spring/EmployeeApplication.java

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/*
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Copyright (c) 2024, Oracle and/or its affiliates.
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This software is dual-licensed to you under the Universal Permissive License
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(UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
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2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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either license.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.oracle.dev.jdbc.odsa.spring;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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@SpringBootApplication
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public class EmployeeApplication {
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public static void main(String[] args) {
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SpringApplication.run(EmployeeApplication.class, args);
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}
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}

‎java/odsa-spring/src/main/java/com/oracle/dev/jdbc/odsa/spring/EmployeeController.java

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/*
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Copyright (c) 2024, Oracle and/or its affiliates.
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This software is dual-licensed to you under the Universal Permissive License
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(UPL) 1.0 as shown at https://oss.oracle.com/licenses/upl or Apache License
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2.0 as shown at http://www.apache.org/licenses/LICENSE-2.0. You may choose
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either license.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package com.oracle.dev.jdbc.odsa.spring;
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import java.util.List;
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import org.springframework.web.bind.annotation.DeleteMapping;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.PathVariable;
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import org.springframework.web.bind.annotation.PostMapping;
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import org.springframework.web.bind.annotation.PutMapping;
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import org.springframework.web.bind.annotation.RequestBody;
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import org.springframework.web.bind.annotation.RestController;
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@RestController
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class EmployeeController {
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private final EmployeeRepository repository;
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EmployeeController(EmployeeRepository repository) {
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this.repository = repository;
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}
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// Aggregate root
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// tag::get-aggregate-root[]
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@GetMapping("/employees")
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List<Employee> all() {
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return repository.findAll();
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}
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// end::get-aggregate-root[]
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@PostMapping("/employees")
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Employee newEmployee(@RequestBody Employee newEmployee) {
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return repository.save(newEmployee);
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}
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// Single item
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@GetMapping("/employees/{id}")
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Employee one(@PathVariable Long id) {
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return repository.findById(id)
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.orElseThrow(() -> new EmployeeNotFoundException(id));
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}
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@PutMapping("/employees/{id}")
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Employee replaceEmployee(@RequestBody Employee newEmployee,
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@PathVariable Long id) {
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return repository.findById(id).map(employee -> {
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employee.setName(newEmployee.getName());
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employee.setJob(newEmployee.getJob());
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return repository.save(employee);
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}).orElseGet(() -> {
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newEmployee.setId(id);
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return repository.save(newEmployee);
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});
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}
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@DeleteMapping("/employees/{id}")
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void deleteEmployee(@PathVariable Long id) {
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repository.deleteById(id);
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}
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}

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