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‎.classpath

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<?xml version="1.0" encoding="UTF-8"?>
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<classpath>
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<classpathentry kind="src" output="target/classes" path="src/main/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="src" output="target/test-classes" path="src/test/java">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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<attribute name="test" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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<attribute name="test" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
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<attributes>
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<attribute name="maven.pomderived" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="src" path="target/generated-sources/annotations">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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<attribute name="ignore_optional_problems" value="true"/>
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<attribute name="m2e-apt" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="src" output="target/test-classes" path="target/generated-test-sources/test-annotations">
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<attributes>
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<attribute name="optional" value="true"/>
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<attribute name="maven.pomderived" value="true"/>
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<attribute name="ignore_optional_problems" value="true"/>
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<attribute name="m2e-apt" value="true"/>
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<attribute name="test" value="true"/>
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</attributes>
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</classpathentry>
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<classpathentry kind="output" path="target/classes"/>
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</classpath>

‎.project

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<?xml version="1.0" encoding="UTF-8"?>
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<projectDescription>
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<name>hibernate-entity-graph</name>
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<comment></comment>
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<projects>
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</projects>
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<buildSpec>
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<buildCommand>
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<name>org.eclipse.jdt.core.javabuilder</name>
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<arguments>
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</arguments>
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</buildCommand>
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<buildCommand>
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<name>org.eclipse.m2e.core.maven2Builder</name>
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<arguments>
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</arguments>
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</buildCommand>
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</buildSpec>
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<natures>
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<nature>org.eclipse.jdt.core.javanature</nature>
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<nature>org.eclipse.m2e.core.maven2Nature</nature>
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</natures>
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</projectDescription>

‎.settings/org.eclipse.jdt.apt.core.prefs

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eclipse.preferences.version=1
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org.eclipse.jdt.apt.aptEnabled=false

‎.settings/org.eclipse.jdt.core.prefs

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eclipse.preferences.version=1
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org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.5
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org.eclipse.jdt.core.compiler.compliance=1.5
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org.eclipse.jdt.core.compiler.problem.enablePreviewFeatures=disabled
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org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
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org.eclipse.jdt.core.compiler.problem.reportPreviewFeatures=ignore
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org.eclipse.jdt.core.compiler.processAnnotations=disabled
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org.eclipse.jdt.core.compiler.release=disabled
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org.eclipse.jdt.core.compiler.source=1.5

‎.settings/org.eclipse.m2e.core.prefs

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activeProfiles=
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eclipse.preferences.version=1
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resolveWorkspaceProjects=true
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version=1

‎db/data.sql

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INSERT INTO author (first_name, last_name, version) VALUES ('Joshua', 'Bloch', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Gavin', 'King', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Christian', 'Bauer', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Gary', 'Gregory', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Raoul-Gabriel', 'Urma', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Mario', 'Fusco', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Alan', 'Mycroft', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Andrew Lee', 'Rubinger', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Aslak', 'Knutsen', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Bill', 'Burke', 0);
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INSERT INTO author (first_name, last_name, version) VALUES ('Scott', 'Oaks', 0);
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INSERT INTO publisher (name, version) VALUES ('Addison-Wesley Professional', 0);
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INSERT INTO publisher (name, version) VALUES ('Manning Publications', 0);
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INSERT INTO publisher (name, version) VALUES ('OReilly Media, Inc', 0);
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INSERT INTO book (publishing_date, title, version, publisher_id) VALUES ('2008-05-08', 'Effective Java', 0, 1);
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INSERT INTO book (publishing_date, title, version, publisher_id) VALUES ('2015-10-01', 'Java Persistence with Hibernate', 0, 2);
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INSERT INTO book (publishing_date, title, version, publisher_id) VALUES ('2014-08-28', 'Java 8 in Action', 0, 2);
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INSERT INTO book (publishing_date, title, version, publisher_id) VALUES ('2014-03-12', 'Continuous Enterprise Development in Java', 0, 3);
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INSERT INTO book (publishing_date, title, version, publisher_id) VALUES ('2010-09-08', 'Enterprise JavaBeans 3.1', 0, 3);
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INSERT INTO book (publishing_date, title, version, publisher_id) VALUES ('2014-04-29', 'Java Performance The Definitive Guide', 0, 3);
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INSERT INTO book_author (book_id, author_id) VALUES (1, 1);
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INSERT INTO book_author (book_id, author_id) VALUES (2, 2);
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INSERT INTO book_author (book_id, author_id) VALUES (2, 3);
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INSERT INTO book_author (book_id, author_id) VALUES (2, 4);
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INSERT INTO book_author (book_id, author_id) VALUES (3, 5);
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INSERT INTO book_author (book_id, author_id) VALUES (3, 6);
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INSERT INTO book_author (book_id, author_id) VALUES (3, 7);
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INSERT INTO book_author (book_id, author_id) VALUES (4, 8);
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INSERT INTO book_author (book_id, author_id) VALUES (4, 9);
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INSERT INTO book_author (book_id, author_id) VALUES (5, 8);
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INSERT INTO book_author (book_id, author_id) VALUES (5, 10);
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INSERT INTO book_author (book_id, author_id) VALUES (6, 11);

‎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" 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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<groupId>hibernate-entity-graph</groupId>
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<artifactId>hibernate-entity-graph</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<name>hibernate-entity-graph</name>
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<dependencies>
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<dependency>
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<groupId>mysql</groupId>
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<artifactId>mysql-connector-java</artifactId>
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<version>8.0.20</version>
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</dependency>
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<dependency>
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<groupId>org.hibernate</groupId>
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<artifactId>hibernate-core</artifactId>
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<version>5.4.18.Final</version>
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</dependency>
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<!-- https://mvnrepository.com/artifact/javax.persistence/javax.persistence-api -->
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<dependency>
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<groupId>javax.persistence</groupId>
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<artifactId>javax.persistence-api</artifactId>
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<version>2.2</version>
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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>1.2.17</version>
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<scope>test</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>1.7.30</version>
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<scope>test</scope>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/com/tech/mkblogs/model/Author.java

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package com.tech.mkblogs.model;
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import java.util.HashSet;
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import java.util.Set;
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import javax.persistence.Column;
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import javax.persistence.Entity;
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import javax.persistence.FetchType;
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import javax.persistence.GeneratedValue;
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import javax.persistence.GenerationType;
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import javax.persistence.Id;
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import javax.persistence.ManyToMany;
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import javax.persistence.NamedAttributeNode;
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import javax.persistence.NamedEntityGraph;
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import javax.persistence.NamedSubgraph;
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import javax.persistence.Table;
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import javax.persistence.Version;
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@Entity
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@Table(name = "author")
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@NamedEntityGraph(name = "graph.author.books.publisher",
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attributeNodes = @NamedAttributeNode(value = "books", subgraph = "books"),
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subgraphs = @NamedSubgraph(name = "books", attributeNodes = @NamedAttributeNode("publisher")) )
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@NamedEntityGraph(name = "graph.author.books", attributeNodes = @NamedAttributeNode(value = "books"))
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public class Author {
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@Id
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@GeneratedValue(strategy = GenerationType.IDENTITY)
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private Integer id;
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@Version
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private Integer version;
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@Column(name = "first_name")
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private String firstName;
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@Column(name = "last_name")
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private String lastName;
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@ManyToMany(mappedBy="authors",fetch = FetchType.LAZY)
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private Set<Book> books = new HashSet<Book>();
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public Integer getId() {
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return this.id;
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}
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public Integer getVersion() {
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return this.version;
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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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public void setFirstName(String firstName) {
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this.firstName = firstName;
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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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public void setLastName(String lastName) {
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this.lastName = lastName;
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}
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public Set<Book> getBooks() {
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return this.books;
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}
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public void setBooks(final Set<Book> books) {
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this.books = books;
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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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}
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if (!(obj instanceof Author)) {
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return false;
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}
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Author other = (Author) obj;
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if (id != null) {
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if (!id.equals(other.id)) {
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return false;
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}
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}
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return true;
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}
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@Override
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public int hashCode() {
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return 31;
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}
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@Override
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public String toString() {
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String result = getClass().getSimpleName() + " ";
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if (firstName != null && !firstName.trim().isEmpty())
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result += "firstName: " + firstName;
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if (lastName != null && !lastName.trim().isEmpty())
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result += ", lastName: " + lastName;
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return result;
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}
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}

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