Initial Commit

ps-springboot-1/.gitignore

+HELP.md
+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/

ps-springboot-1/.mvn/wrapper/MavenWrapperDownloader.java

+/*
+ * Copyright 2007-present the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import java.net.*;
+import java.io.*;
+import java.nio.channels.*;
+import java.util.Properties;
+
+public class MavenWrapperDownloader {
+
+    private static final String WRAPPER_VERSION = "0.5.6";
+    /**
+     * Default URL to download the maven-wrapper.jar from, if no 'downloadUrl' is provided.
+     */
+    private static final String DEFAULT_DOWNLOAD_URL = "https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/"
+        + WRAPPER_VERSION + "/maven-wrapper-" + WRAPPER_VERSION + ".jar";
+
+    /**
+     * Path to the maven-wrapper.properties file, which might contain a downloadUrl property to
+     * use instead of the default one.
+     */
+    private static final String MAVEN_WRAPPER_PROPERTIES_PATH =
+            ".mvn/wrapper/maven-wrapper.properties";
+
+    /**
+     * Path where the maven-wrapper.jar will be saved to.
+     */
+    private static final String MAVEN_WRAPPER_JAR_PATH =
+            ".mvn/wrapper/maven-wrapper.jar";
+
+    /**
+     * Name of the property which should be used to override the default download url for the wrapper.
+     */
+    private static final String PROPERTY_NAME_WRAPPER_URL = "wrapperUrl";
+
+    public static void main(String args[]) {
+        System.out.println("- Downloader started");
+        File baseDirectory = new File(args[0]);
+        System.out.println("- Using base directory: " + baseDirectory.getAbsolutePath());
+
+        // If the maven-wrapper.properties exists, read it and check if it contains a custom
+        // wrapperUrl parameter.
+        File mavenWrapperPropertyFile = new File(baseDirectory, MAVEN_WRAPPER_PROPERTIES_PATH);
+        String url = DEFAULT_DOWNLOAD_URL;
+        if(mavenWrapperPropertyFile.exists()) {
+            FileInputStream mavenWrapperPropertyFileInputStream = null;
+            try {
+                mavenWrapperPropertyFileInputStream = new FileInputStream(mavenWrapperPropertyFile);
+                Properties mavenWrapperProperties = new Properties();
+                mavenWrapperProperties.load(mavenWrapperPropertyFileInputStream);
+                url = mavenWrapperProperties.getProperty(PROPERTY_NAME_WRAPPER_URL, url);
+            } catch (IOException e) {
+                System.out.println("- ERROR loading '" + MAVEN_WRAPPER_PROPERTIES_PATH + "'");
+            } finally {
+                try {
+                    if(mavenWrapperPropertyFileInputStream != null) {
+                        mavenWrapperPropertyFileInputStream.close();
+                    }
+                } catch (IOException e) {
+                    // Ignore ...
+                }
+            }
+        }
+        System.out.println("- Downloading from: " + url);
+
+        File outputFile = new File(baseDirectory.getAbsolutePath(), MAVEN_WRAPPER_JAR_PATH);
+        if(!outputFile.getParentFile().exists()) {
+            if(!outputFile.getParentFile().mkdirs()) {
+                System.out.println(
+                        "- ERROR creating output directory '" + outputFile.getParentFile().getAbsolutePath() + "'");
+            }
+        }
+        System.out.println("- Downloading to: " + outputFile.getAbsolutePath());
+        try {
+            downloadFileFromURL(url, outputFile);
+            System.out.println("Done");
+            System.exit(0);
+        } catch (Throwable e) {
+            System.out.println("- Error downloading");
+            e.printStackTrace();
+            System.exit(1);
+        }
+    }
+
+    private static void downloadFileFromURL(String urlString, File destination) throws Exception {
+        if (System.getenv("MVNW_USERNAME") != null && System.getenv("MVNW_PASSWORD") != null) {
+            String username = System.getenv("MVNW_USERNAME");
+            char[] password = System.getenv("MVNW_PASSWORD").toCharArray();
+            Authenticator.setDefault(new Authenticator() {
+                @Override
+                protected PasswordAuthentication getPasswordAuthentication() {
+                    return new PasswordAuthentication(username, password);
+                }
+            });
+        }
+        URL website = new URL(urlString);
+        ReadableByteChannel rbc;
+        rbc = Channels.newChannel(website.openStream());
+        FileOutputStream fos = new FileOutputStream(destination);
+        fos.getChannel().transferFrom(rbc, 0, Long.MAX_VALUE);
+        fos.close();
+        rbc.close();
+    }
+
+}

ps-springboot-1/.mvn/wrapper/maven-wrapper.properties

+distributionUrl=https://repo.maven.apache.org/maven2/org/apache/maven/apache-maven/3.6.3/apache-maven-3.6.3-bin.zip
+wrapperUrl=https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar

ps-springboot-1/mvnw.cmd

+@REM ----------------------------------------------------------------------------
+@REM Licensed to the Apache Software Foundation (ASF) under one
+@REM or more contributor license agreements.  See the NOTICE file
+@REM distributed with this work for additional information
+@REM regarding copyright ownership.  The ASF licenses this file
+@REM to you under the Apache License, Version 2.0 (the
+@REM "License"); you may not use this file except in compliance
+@REM with the License.  You may obtain a copy of the License at
+@REM
+@REM    https://www.apache.org/licenses/LICENSE-2.0
+@REM
+@REM Unless required by applicable law or agreed to in writing,
+@REM software distributed under the License is distributed on an
+@REM "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+@REM KIND, either express or implied.  See the License for the
+@REM specific language governing permissions and limitations
+@REM under the License.
+@REM ----------------------------------------------------------------------------
+
+@REM ----------------------------------------------------------------------------
+@REM Maven Start Up Batch script
+@REM
+@REM Required ENV vars:
+@REM JAVA_HOME - location of a JDK home dir
+@REM
+@REM Optional ENV vars
+@REM M2_HOME - location of maven2's installed home dir
+@REM MAVEN_BATCH_ECHO - set to 'on' to enable the echoing of the batch commands
+@REM MAVEN_BATCH_PAUSE - set to 'on' to wait for a keystroke before ending
+@REM MAVEN_OPTS - parameters passed to the Java VM when running Maven
+@REM     e.g. to debug Maven itself, use
+@REM set MAVEN_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000
+@REM MAVEN_SKIP_RC - flag to disable loading of mavenrc files
+@REM ----------------------------------------------------------------------------
+
+@REM Begin all REM lines with '@' in case MAVEN_BATCH_ECHO is 'on'
+@echo off
+@REM set title of command window
+title %0
+@REM enable echoing by setting MAVEN_BATCH_ECHO to 'on'
+@if "%MAVEN_BATCH_ECHO%" == "on"  echo %MAVEN_BATCH_ECHO%
+
+@REM set %HOME% to equivalent of $HOME
+if "%HOME%" == "" (set "HOME=%HOMEDRIVE%%HOMEPATH%")
+
+@REM Execute a user defined script before this one
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPre
+@REM check for pre script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_pre.bat" call "%HOME%\mavenrc_pre.bat"
+if exist "%HOME%\mavenrc_pre.cmd" call "%HOME%\mavenrc_pre.cmd"
+:skipRcPre
+
+@setlocal
+
+set ERROR_CODE=0
+
+@REM To isolate internal variables from possible post scripts, we use another setlocal
+@setlocal
+
+@REM ==== START VALIDATION ====
+if not "%JAVA_HOME%" == "" goto OkJHome
+
+echo.
+echo Error: JAVA_HOME not found in your environment. >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+:OkJHome
+if exist "%JAVA_HOME%\bin\java.exe" goto init
+
+echo.
+echo Error: JAVA_HOME is set to an invalid directory. >&2
+echo JAVA_HOME = "%JAVA_HOME%" >&2
+echo Please set the JAVA_HOME variable in your environment to match the >&2
+echo location of your Java installation. >&2
+echo.
+goto error
+
+@REM ==== END VALIDATION ====
+
+:init
+
+@REM Find the project base dir, i.e. the directory that contains the folder ".mvn".
+@REM Fallback to current working directory if not found.
+
+set MAVEN_PROJECTBASEDIR=%MAVEN_BASEDIR%
+IF NOT "%MAVEN_PROJECTBASEDIR%"=="" goto endDetectBaseDir
+
+set EXEC_DIR=%CD%
+set WDIR=%EXEC_DIR%
+:findBaseDir
+IF EXIST "%WDIR%"\.mvn goto baseDirFound
+cd ..
+IF "%WDIR%"=="%CD%" goto baseDirNotFound
+set WDIR=%CD%
+goto findBaseDir
+
+:baseDirFound
+set MAVEN_PROJECTBASEDIR=%WDIR%
+cd "%EXEC_DIR%"
+goto endDetectBaseDir
+
+:baseDirNotFound
+set MAVEN_PROJECTBASEDIR=%EXEC_DIR%
+cd "%EXEC_DIR%"
+
+:endDetectBaseDir
+
+IF NOT EXIST "%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config" goto endReadAdditionalConfig
+
+@setlocal EnableExtensions EnableDelayedExpansion
+for /F "usebackq delims=" %%a in ("%MAVEN_PROJECTBASEDIR%\.mvn\jvm.config") do set JVM_CONFIG_MAVEN_PROPS=!JVM_CONFIG_MAVEN_PROPS! %%a
+@endlocal & set JVM_CONFIG_MAVEN_PROPS=%JVM_CONFIG_MAVEN_PROPS%
+
+:endReadAdditionalConfig
+
+SET MAVEN_JAVA_EXE="%JAVA_HOME%\bin\java.exe"
+set WRAPPER_JAR="%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.jar"
+set WRAPPER_LAUNCHER=org.apache.maven.wrapper.MavenWrapperMain
+
+set DOWNLOAD_URL="https://repo.maven.apache.org/maven2/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+
+FOR /F "tokens=1,2 delims==" %%A IN ("%MAVEN_PROJECTBASEDIR%\.mvn\wrapper\maven-wrapper.properties") DO (
+    IF "%%A"=="wrapperUrl" SET DOWNLOAD_URL=%%B
+)
+
+@REM Extension to allow automatically downloading the maven-wrapper.jar from Maven-central
+@REM This allows using the maven wrapper in projects that prohibit checking in binary data.
+if exist %WRAPPER_JAR% (
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Found %WRAPPER_JAR%
+    )
+) else (
+    if not "%MVNW_REPOURL%" == "" (
+        SET DOWNLOAD_URL="%MVNW_REPOURL%/io/takari/maven-wrapper/0.5.6/maven-wrapper-0.5.6.jar"
+    )
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Couldn't find %WRAPPER_JAR%, downloading it ...
+        echo Downloading from: %DOWNLOAD_URL%
+    )
+
+    powershell -Command "&{"^
+		"$webclient = new-object System.Net.WebClient;"^
+		"if (-not ([string]::IsNullOrEmpty('%MVNW_USERNAME%') -and [string]::IsNullOrEmpty('%MVNW_PASSWORD%'))) {"^
+		"$webclient.Credentials = new-object System.Net.NetworkCredential('%MVNW_USERNAME%', '%MVNW_PASSWORD%');"^
+		"}"^
+		"[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; $webclient.DownloadFile('%DOWNLOAD_URL%', '%WRAPPER_JAR%')"^
+		"}"
+    if "%MVNW_VERBOSE%" == "true" (
+        echo Finished downloading %WRAPPER_JAR%
+    )
+)
+@REM End of extension
+
+@REM Provide a "standardized" way to retrieve the CLI args that will
+@REM work with both Windows and non-Windows executions.
+set MAVEN_CMD_LINE_ARGS=%*
+
+%MAVEN_JAVA_EXE% %JVM_CONFIG_MAVEN_PROPS% %MAVEN_OPTS% %MAVEN_DEBUG_OPTS% -classpath %WRAPPER_JAR% "-Dmaven.multiModuleProjectDirectory=%MAVEN_PROJECTBASEDIR%" %WRAPPER_LAUNCHER% %MAVEN_CONFIG% %*
+if ERRORLEVEL 1 goto error
+goto end
+
+:error
+set ERROR_CODE=1
+
+:end
+@endlocal & set ERROR_CODE=%ERROR_CODE%
+
+if not "%MAVEN_SKIP_RC%" == "" goto skipRcPost
+@REM check for post script, once with legacy .bat ending and once with .cmd ending
+if exist "%HOME%\mavenrc_post.bat" call "%HOME%\mavenrc_post.bat"
+if exist "%HOME%\mavenrc_post.cmd" call "%HOME%\mavenrc_post.cmd"
+:skipRcPost
+
+@REM pause the script if MAVEN_BATCH_PAUSE is set to 'on'
+if "%MAVEN_BATCH_PAUSE%" == "on" pause
+
+if "%MAVEN_TERMINATE_CMD%" == "on" exit %ERROR_CODE%
+
+exit /B %ERROR_CODE%

ps-springboot-1/pom.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>org.springframework.boot</groupId>
+		<artifactId>spring-boot-starter-parent</artifactId>
+		<version>2.4.4</version>
+		<relativePath/> <!-- lookup parent from repository -->
+	</parent>
+	<groupId>com.nisum</groupId>
+	<artifactId>ps-springboot-1</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+	<name>ps-springboot-1</name>
+	<description>Demo project for Spring Boot</description>
+	<properties>
+		<java.version>1.8</java.version>
+	</properties>
+	<dependencies>
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-web</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-data-jpa</artifactId>
+		</dependency>
+
+		<dependency>
+			<groupId>org.postgresql</groupId>
+			<artifactId>postgresql</artifactId>
+			<scope>runtime</scope>
+		</dependency>
+
+		<dependency>
+			<groupId>org.springframework.boot</groupId>
+			<artifactId>spring-boot-starter-test</artifactId>
+			<scope>test</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.springframework.boot</groupId>
+				<artifactId>spring-boot-maven-plugin</artifactId>
+			</plugin>
+		</plugins>
+	</build>
+
+</project>

ps-springboot-1/src/main/java/com/nisum/psspringboot1/PsSpringboot1Application.java

+package com.nisum.psspringboot1;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class PsSpringboot1Application {
+
+	public static void main(String[] args) {
+		SpringApplication.run(PsSpringboot1Application.class, args);
+	}
+
+}

ps-springboot-1/src/main/java/com/nisum/psspringboot1/controllers/SessionController.java

+package com.nisum.psspringboot1.controllers;
+
+import com.nisum.psspringboot1.models.Session;
+import com.nisum.psspringboot1.repositories.SessionRepository;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/v1/sessions")
+public class SessionController {
+    @Autowired
+    SessionRepository repository;
+
+    @GetMapping
+    public List<Session> getAllSessions() { return repository.findAll(); }
+
+    @GetMapping("{id}")
+    public Session getSessionById(@PathVariable("id") long id) { return repository.getOne(id); }
+
+    @PostMapping
+    public Session postSession(@RequestBody final Session session) { return repository.saveAndFlush(session); }
+
+    @PutMapping("{id}")
+    public Session updateSession(@PathVariable("id") Long id, @RequestBody Session session) {
+        Session staleSession = repository.getOne(id);
+        BeanUtils.copyProperties(session, staleSession, "session_id");
+        return repository.saveAndFlush(staleSession);
+    }
+
+    @DeleteMapping("{id}")
+    public void deleteSession(@PathVariable("id") Long id) { repository.deleteById(id); }
+}

ps-springboot-1/src/main/java/com/nisum/psspringboot1/controllers/SpeakerController.java

+package com.nisum.psspringboot1.controllers;
+
+import com.nisum.psspringboot1.models.Speaker;
+import com.nisum.psspringboot1.repositories.SpeakerRepository;
+import org.springframework.beans.BeanUtils;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.List;
+
+@RestController
+@RequestMapping("/api/v1/speakers")
+public class SpeakerController {
+    @Autowired
+    SpeakerRepository repository;
+
+    @GetMapping
+    public List<Speaker> getAllSpeakers() { return repository.findAll(); }
+
+    @GetMapping("{id}")
+    public Speaker getSpeakerById(@PathVariable("id") Long id) { return repository.getOne(id); }
+
+    @PostMapping
+    public Speaker createSpeaker(@RequestBody final Speaker speaker) { return repository.saveAndFlush(speaker); }
+
+    @PutMapping("{id}")
+    public Speaker updateSpeaker(@PathVariable("id") Long id, @RequestBody Speaker speaker) {
+        Speaker oldSpeaker = repository.getOne(id);
+        BeanUtils.copyProperties(speaker, oldSpeaker, "speaker_id");
+        return  oldSpeaker;
+    }
+
+    @DeleteMapping("{id}")
+    public void deleteSpeaker(@PathVariable("id") Long id) { repository.deleteById(id); }
+}

ps-springboot-1/src/main/java/com/nisum/psspringboot1/models/Session.java

+package com.nisum.psspringboot1.models;
+
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+
+import javax.persistence.*;
+import java.util.List;
+
+@Entity(name = "sessions")
+@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
+public class Session {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long session_id;
+    private String session_name;
+    private String session_description;
+    private Integer session_length;
+
+    @ManyToMany
+    @JoinTable(
+            name = "session_speakers",
+            joinColumns = @JoinColumn(name = "session_id"),
+            inverseJoinColumns = @JoinColumn(name = "speaker_id")
+    )
+    private List<Speaker> speakers;
+
+    public Session() {}
+
+    public List<Speaker> getSpeakers() {
+        return speakers;
+    }
+
+    public Session setSpeakers(List<Speaker> speakers) {
+        this.speakers = speakers;
+        return this;
+    }
+
+    public Long getSession_id() {
+        return session_id;
+    }
+
+    public Session setSession_id(Long session_id) {
+        this.session_id = session_id;
+        return this;
+    }
+
+    public String getSession_name() {
+        return session_name;
+    }
+
+    public Session setSession_name(String session_name) {
+        this.session_name = session_name;
+        return this;
+    }
+
+    public String getSession_description() {
+        return session_description;
+    }
+
+    public Session setSession_description(String session_description) {
+        this.session_description = session_description;
+        return this;
+    }
+
+    public Integer getSession_length() {
+        return session_length;
+    }
+
+    public Session setSession_length(Integer session_length) {
+        this.session_length = session_length;
+        return this;
+    }
+}

ps-springboot-1/src/main/java/com/nisum/psspringboot1/models/Speaker.java

+package com.nisum.psspringboot1.models;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
+import org.hibernate.annotations.Type;
+
+import javax.persistence.*;
+import java.util.List;
+
+@Entity(name = "speakers")
+@JsonIgnoreProperties({"hibernateLazyInitializer", "handler"})
+public class Speaker {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    private Long speaker_id;
+    private String first_name;
+    private String last_name;
+    private String title;
+    private String company;
+    private String speaker_bio;
+
+    @Lob
+    @Type(type = "org.hibernate.type.BinaryType")
+    private byte[] speaker_photo;
+
+    @ManyToMany(mappedBy = "speakers")
+    @JsonIgnore
+    private List<Session> sessions;
+
+    public List<Session> getSessions() {
+        return sessions;
+    }
+
+    public Speaker setSessions(List<Session> sessions) {
+        this.sessions = sessions;
+        return this;
+    }
+
+    public Speaker() {}
+
+    public Long getSpeaker_id() {
+        return speaker_id;
+    }
+
+    public Speaker setSpeaker_id(Long speaker_id) {
+        this.speaker_id = speaker_id;
+        return this;
+    }
+
+    public String getFirst_name() {
+        return first_name;
+    }
+
+    public Speaker setFirst_name(String first_name) {
+        this.first_name = first_name;
+        return this;
+    }
+
+    public String getLast_name() {
+        return last_name;
+    }
+
+    public Speaker setLast_name(String last_name) {
+        this.last_name = last_name;
+        return this;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public Speaker setTitle(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public String getCompany() {
+        return company;
+    }
+
+    public Speaker setCompany(String company) {
+        this.company = company;
+        return this;
+    }
+
+    public String getSpeaker_bio() {
+        return speaker_bio;
+    }
+
+    public Speaker setSpeaker_bio(String speaker_bio) {
+        this.speaker_bio = speaker_bio;
+        return this;
+    }
+}

ps-springboot-1/src/main/java/com/nisum/psspringboot1/repositories/SessionRepository.java

+package com.nisum.psspringboot1.repositories;
+
+import com.nisum.psspringboot1.models.Session;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface SessionRepository extends JpaRepository<Session, Long> {
+}

ps-springboot-1/src/main/java/com/nisum/psspringboot1/repositories/SpeakerRepository.java

+package com.nisum.psspringboot1.repositories;
+
+import com.nisum.psspringboot1.models.Speaker;
+import org.springframework.data.jpa.repository.JpaRepository;
+
+public interface SpeakerRepository extends JpaRepository<Speaker, Long> {
+}

ps-springboot-1/src/main/resources/application.properties

+spring.datasource.url=jdbc:postgresql://localhost:5432/conference_app
+spring.datasource.username=postgres
+spring.datasource.password=Welcome
+spring.jpa.database-platform=org.hibernate.dialect.PostgreSQLDialect
+spring.jpa.hibernate.ddl-auto=none
+spring.jpa.hibernate.show-sql=true
+
+spring.jpa.properties.hibernate.jdbc.lob.non_contextual_creation=true

ps-springboot-1/src/main/resources/create_tables.sql

+CREATE TABLE attendees
+(
+    attendee_id  SERIAL PRIMARY KEY,
+    first_name   varchar(30) NOT NULL,
+    last_name    varchar(30) NOT NULL,
+    title        varchar(40) NULL,
+    company      varchar(50) NULL,
+    email        varchar(80) NOT NULL,
+    phone_number varchar(20) NULL
+);
+
+CREATE TABLE ticket_types
+(
+    ticket_type_code  varchar(1) PRIMARY KEY,
+    ticket_type_name  varchar(30)  NOT NULL,
+    description       varchar(100) NOT NULL,
+    includes_workshop boolean      NOT NULL
+);
+
+CREATE TABLE pricing_categories
+(
+    pricing_category_code varchar(1) PRIMARY KEY,
+    pricing_category_name varchar(20) NOT NULL,
+    pricing_start_date    date        NOT NULL,
+    pricing_end_date      date        NOT NULL
+);
+
+CREATE TABLE ticket_prices
+(
+    ticket_price_id       SERIAL PRIMARY KEY,
+    ticket_type_code      varchar(1)    NOT NULL REFERENCES ticket_types (ticket_type_code),
+    pricing_category_code varchar(1)    NOT NULL REFERENCES pricing_categories (pricing_category_code),
+    base_price            numeric(8, 2) NOT NULL
+);
+
+CREATE TABLE discount_codes
+(
+    discount_code_id SERIAL PRIMARY KEY,
+    discount_code    varchar(20)   NOT NULL,
+    discount_name    varchar(30)   NOT NULL,
+    discount_type    varchar(1)    NOT NULL,
+    discount_amount  numeric(8, 2) NOT NULL
+);
+
+CREATE TABLE attendee_tickets
+(
+    attendee_ticket_id SERIAL PRIMARY KEY,
+    attendee_id        integer       NOT NULL REFERENCES attendees (attendee_id),
+    ticket_price_id    integer       NOT NULL REFERENCES ticket_prices (ticket_price_id),
+    discount_code_id   integer       NULL REFERENCES discount_codes (discount_code_id),
+    net_price          numeric(8, 2) NOT NULL
+);
+
+CREATE TABLE time_slots
+(
+    time_slot_id         SERIAL PRIMARY KEY,
+    time_slot_date       date                   NOT NULL,
+    start_time           time without time zone NOT NULL,
+    end_time             time without time zone NOT NULL,
+    is_keynote_time_slot boolean default false  NOT NULL
+);
+
+CREATE TABLE sessions
+(
+    session_id          SERIAL PRIMARY KEY,
+    session_name        varchar(80)   NOT NULL,
+    session_description varchar(1024) NOT NULL,
+    session_length      integer       NOT NULL
+);
+
+CREATE TABLE session_schedule
+(
+    schedule_id  SERIAL PRIMARY KEY,
+    time_slot_id integer     NOT NULL REFERENCES time_slots (time_slot_id),
+    session_id   integer     NOT NULL REFERENCES sessions (session_id),
+    room         varchar(30) NOT NULL
+);
+
+CREATE TABLE tags
+(
+    tag_id      SERIAL PRIMARY KEY,
+    description varchar(30) NOT NULL
+);
+
+CREATE TABLE session_tags
+(
+    session_id integer NOT NULL REFERENCES sessions (session_id),
+    tag_id     integer NOT NULL REFERENCES tags (tag_id)
+);
+
+CREATE TABLE speakers
+(
+    speaker_id    SERIAL PRIMARY KEY,
+    first_name    varchar(30)   NOT NULL,
+    last_name     varchar(30)   NOT NULL,
+    title         varchar(40)   NOT NULL,
+    company       varchar(50)   NOT NULL,
+    speaker_bio   varchar(2000) NOT NULL,
+    speaker_photo BYTEA   NULL
+);
+
+CREATE TABLE session_speakers
+(
+    session_id integer NOT NULL REFERENCES sessions (session_id),
+    speaker_id integer NOT NULL REFERENCES speakers (speaker_id)
+);
+
+CREATE TABLE workshops
+(
+    workshop_id   SERIAL PRIMARY KEY,
+    workshop_name varchar(60)   NOT NULL,
+    description   varchar(1024) NOT NULL,
+    requirements  varchar(1024) NOT NULL,
+    room          varchar(30)   NOT NULL,
+    capacity      integer       NOT NULL
+);
+
+CREATE TABLE workshop_speakers
+(
+    workshop_id integer NOT NULL REFERENCES workshops (workshop_id),
+    speaker_id  integer NOT NULL REFERENCES speakers (speaker_id)
+);
+
+CREATE TABLE workshop_registrations
+(
+    workshop_id        integer NOT NULL REFERENCES workshops (workshop_id),
+    attendee_ticket_id integer NOT NULL REFERENCES attendee_tickets (attendee_ticket_id)
+);
+

ps-springboot-1/src/test/java/com/nisum/psspringboot1/PsSpringboot1ApplicationTests.java

+package com.nisum.psspringboot1;
+
+import org.junit.jupiter.api.Test;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@SpringBootTest
+class PsSpringboot1ApplicationTests {
+
+	@Test
+	void contextLoads() {
+	}
+
+}