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JSON Duality Example
Signed-off-by: Anders Swanson <anders.swanson@oracle.com>
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‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/README.md

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# Oracle Spring Boot Sample for JSON Duality Views
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This sample application demonstrates how to use the Oracle Spring Boot Starter JSON Collections with [JSON Duality Views](https://docs.oracle.com/en/database/oracle/oracle-database/23/jsnvu/overview-json-relational-duality-views.html)
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The Oracle Spring Boot Sample for JSON Duality Views package includes the following components to demonstrate development with JSON Duality Views from a Spring Boot Java context:
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- Entities for JSON duality views (Student, Enrollment, Course, Lecture Hall)
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- Services to interact with the JSON duality views
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- A SQL script that initializes the database, including the JSON duality views.
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- A comprehensive test that uses Spring Boot services to manipulate data from JSON duality views.
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## Run the sample application
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The sample application creates a temporary Oracle Free container database, and requires a docker runtime environment.
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To run the test application, run the following command:
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```shell
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mvn test
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```
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## Configure your project to use Oracle JSON Duality Views
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To use Oracle JSON Duality Views from your Spring Boot application, add the following Maven dependency to your project:
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```xml
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<dependency>
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<groupId>com.oracle.database.spring</groupId>
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<artifactId>oracle-spring-boot-starter-json-collections</artifactId>
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</dependency>
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```

‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/pom.xml

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<?xml version="1.0" encoding="UTF-8"?>
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<!-- Copyright (c) 2024, Oracle and/or its affiliates. -->
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<!-- Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl. -->
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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 http://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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<artifactId>oracle-spring-boot-starter-samples</artifactId>
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<groupId>com.oracle.database.spring</groupId>
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<version>24.2.0</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>oracle-spring-boot-sample-json-duality</artifactId>
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<version>24.2.0</version>
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<name>Oracle Spring Boot Starter - JSON Duality Views Sample</name>
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<description>Oracle Spring Boot Starter Sample for JSON Duality Views</description>
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<organization>
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<name>Oracle America, Inc.</name>
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<url>https://www.oracle.com</url>
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</organization>
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<developers>
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<developer>
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<name>Oracle</name>
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<email>obaas_ww at oracle.com</email>
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<organization>Oracle America, Inc.</organization>
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<organizationUrl>https://www.oracle.com</organizationUrl>
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</developer>
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</developers>
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<licenses>
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<license>
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<name>The Universal Permissive License (UPL), Version 1.0</name>
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<url>https://oss.oracle.com/licenses/upl/</url>
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<distribution>repo</distribution>
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</license>
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</licenses>
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<scm>
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<url>https://github.com/oracle/spring-cloud-oracle</url>
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<connection>scm:git:https://github.com/oracle/spring-cloud-oracle.git</connection>
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<developerConnection>scm:git:git@github.com:oracle/spring-cloud-oracle.git</developerConnection>
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</scm>
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<dependencies>
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<dependency>
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<groupId>com.oracle.database.spring</groupId>
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<artifactId>oracle-spring-boot-starter-json-collections</artifactId>
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<version>${project.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-web</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-data-jdbc</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<version>${spring-boot-dependencies.version}</version>
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<scope>test</scope>
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</dependency>
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<!-- Test Dependencies-->
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>junit-jupiter</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>testcontainers</artifactId>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>org.testcontainers</groupId>
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<artifactId>oracle-free</artifactId>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/src/main/java/com/oracle/database/spring/jsonduality/Course.java

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// Copyright (c) 2024, Oracle and/or its affiliates.
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// Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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package com.oracle.database.spring.jsonduality;
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import java.util.UUID;
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public class Course {
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private String _id;
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private String name;
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private String description;
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private Integer credits;
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private LectureHall lecture_hall;
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public static Course createCourse() {
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Course course = new Course();
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course.set_id(UUID.randomUUID().toString());
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return course;
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}
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public Course() {
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}
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public Course(String _id, String name, String description, Integer credits, LectureHall lecture_hall) {
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this._id = _id;
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this.name = name;
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this.description = description;
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this.credits = credits;
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this.lecture_hall = lecture_hall;
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}
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public String get_id() {
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return _id;
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}
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public void set_id(String _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 getDescription() {
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return description;
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}
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public void setDescription(String description) {
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this.description = description;
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}
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public Integer getCredits() {
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return credits;
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}
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public void setCredits(Integer credits) {
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this.credits = credits;
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}
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public LectureHall getLecture_hall() {
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return lecture_hall;
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}
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public void setLecture_hall(LectureHall lecture_hall) {
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this.lecture_hall = lecture_hall;
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}
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}

‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/src/main/java/com/oracle/database/spring/jsonduality/CourseService.java

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// Copyright (c) 2024, Oracle and/or its affiliates.
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// Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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package com.oracle.database.spring.jsonduality;
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import java.sql.PreparedStatement;
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import java.util.List;
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import com.oracle.spring.json.jsonb.JSONB;
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import com.oracle.spring.json.jsonb.JSONBRowMapper;
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import org.springframework.jdbc.core.JdbcTemplate;
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import org.springframework.jdbc.core.RowMapper;
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import org.springframework.stereotype.Component;
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@Component
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public class CourseService {
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private static final String byName = """
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select * from courses_dv v
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where v.data.name = ?
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""";
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private final JdbcTemplate jdbcTemplate;
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private final JSONB jsonb;
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private final RowMapper<Course> rowMapper;
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public CourseService(JdbcTemplate jdbcTemplate, JSONB jsonb) {
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this.jdbcTemplate = jdbcTemplate;
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this.jsonb = jsonb;
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rowMapper = new JSONBRowMapper<>(jsonb, Course.class);
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}
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public List<Course> getCourseByName(String name) {
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return jdbcTemplate.query(con -> {
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PreparedStatement ps = con.prepareStatement(byName);
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ps.setString(1, name);
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return ps;
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}, rowMapper);
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}
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}

‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/src/main/java/com/oracle/database/spring/jsonduality/Enrollment.java

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// Copyright (c) 2024, Oracle and/or its affiliates.
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// Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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package com.oracle.database.spring.jsonduality;
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import java.util.UUID;
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public class Enrollment {
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private String _id;
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private Course course;
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public Enrollment createEnrollment() {
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Enrollment enrollment = new Enrollment();
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enrollment.set_id(UUID.randomUUID().toString());
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return enrollment;
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}
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public Enrollment() {}
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public Enrollment(String _id, Course course) {
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this._id = _id;
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this.course = course;
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}
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public String get_id() {
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return _id;
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}
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public void set_id(String _id) {
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this._id = _id;
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}
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public Course getCourse() {
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return course;
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}
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public void setCourse(Course course) {
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this.course = course;
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}
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}

‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/src/main/java/com/oracle/database/spring/jsonduality/JSONDualitySampleApplication.java

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// Copyright (c) 2024, Oracle and/or its affiliates.
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// Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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package com.oracle.database.spring.jsonduality;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.context.annotation.Bean;
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@SpringBootApplication
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public class JSONDualitySampleApplication {
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public static void main(String[] args) {
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SpringApplication.run(JSONDualitySampleApplication.class, args);
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}
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}

‎database/starters/oracle-spring-boot-starter-samples/oracle-spring-boot-sample-json-duality/src/main/java/com/oracle/database/spring/jsonduality/LectureHall.java

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// Copyright (c) 2024, Oracle and/or its affiliates.
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// Licensed under the Universal Permissive License v 1.0 as shown at https://oss.oracle.com/licenses/upl.
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package com.oracle.database.spring.jsonduality;
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import java.util.UUID;
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public class LectureHall {
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private String _id;
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private String name;
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public static LectureHall createLecureHall() {
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LectureHall hall = new LectureHall();
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hall.set_id(UUID.randomUUID().toString());
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return hall;
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}
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public LectureHall() {}
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public LectureHall(String _id, String name) {
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this._id = _id;
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this.name = name;
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}
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public String get_id() {
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return _id;
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}
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public void set_id(String _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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}

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