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JAVA-41259 Moved code of article jpa-unique-constraints from java-jpa-3 to java-jpa
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‎persistence-modules/java-jpa-3/README.md‎

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@@ -11,5 +11,4 @@ This module contains articles about the Java Persistence API (JPA) in Java.
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- [A Guide to MultipleBagFetchException in Hibernate](https://www.baeldung.com/java-hibernate-multiplebagfetchexception)
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- [How to Convert a Hibernate Proxy to a Real Entity Object](https://www.baeldung.com/hibernate-proxy-to-real-entity-object)
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- [How to Return Multiple Entities in JPA Query](https://www.baeldung.com/jpa-return-multiple-entities)
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- [Defining Unique Constraints in JPA](https://www.baeldung.com/jpa-unique-constraints)
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- [Connecting to a Specific Schema in JDBC](https://www.baeldung.com/jdbc-connect-to-schema)

‎persistence-modules/java-jpa-3/src/main/resources/META-INF/persistence.xml‎

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<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
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</properties>
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</persistence-unit>
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<persistence-unit name="jpa-unique-constraints">
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<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
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<class>com.baeldung.jpa.uniqueconstraints.Person</class>
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<class>com.baeldung.jpa.uniqueconstraints.Address</class>
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<exclude-unlisted-classes>true</exclude-unlisted-classes>
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<properties>
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<property name="jakarta.persistence.jdbc.driver" value="org.h2.Driver" />
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<property name="jakarta.persistence.jdbc.url" value="jdbc:h2:mem:test" />
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<property name="jakarta.persistence.jdbc.user" value="sa" />
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<property name="jakarta.persistence.jdbc.password" value="" />
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<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
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<property name="hibernate.hbm2ddl.auto" value="create-drop" />
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<property name="show_sql" value="true" />
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<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
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</properties>
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</persistence-unit>
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<persistence-unit name="jpa-h2-return-multiple-entities">
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<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
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<class>com.baeldung.jpa.returnmultipleentities.Channel</class>

‎persistence-modules/java-jpa/README.md‎

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@@ -12,3 +12,4 @@ This module contains articles about the Java Persistence API (JPA) in Java.
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- [JPA Query Parameters Usage](https://www.baeldung.com/jpa-query-parameters)
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- [Default Column Values in JPA](https://www.baeldung.com/jpa-default-column-values)
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- [Returning an Auto-Generated Id with JPA](https://www.baeldung.com/jpa-get-auto-generated-id)
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- [Defining Unique Constraints in JPA](https://www.baeldung.com/jpa-unique-constraints)

persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/uniqueconstraints/Address.java renamed to persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/uniqueconstraints/Address.java

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persistence-modules/java-jpa-3/src/main/java/com/baeldung/jpa/uniqueconstraints/Person.java renamed to persistence-modules/java-jpa/src/main/java/com/baeldung/jpa/uniqueconstraints/Person.java

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‎persistence-modules/java-jpa/src/main/resources/META-INF/persistence.xml‎

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<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false"/>
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</properties>
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</persistence-unit>
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<persistence-unit name="jpa-unique-constraints">
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<provider>org.hibernate.jpa.HibernatePersistenceProvider</provider>
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<class>com.baeldung.jpa.uniqueconstraints.Person</class>
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<class>com.baeldung.jpa.uniqueconstraints.Address</class>
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<exclude-unlisted-classes>true</exclude-unlisted-classes>
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<properties>
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<property name="jakarta.persistence.jdbc.driver" value="org.h2.Driver" />
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<property name="jakarta.persistence.jdbc.url" value="jdbc:h2:mem:test" />
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<property name="jakarta.persistence.jdbc.user" value="sa" />
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<property name="jakarta.persistence.jdbc.password" value="" />
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<property name="hibernate.dialect" value="org.hibernate.dialect.H2Dialect" />
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<property name="hibernate.hbm2ddl.auto" value="create-drop" />
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<property name="show_sql" value="true" />
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<property name="hibernate.temp.use_jdbc_metadata_defaults" value="false" />
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</properties>
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</persistence-unit>
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</persistence>

persistence-modules/java-jpa-3/src/test/java/com/baeldung/jpa/uniqueconstraints/UniqueColumnIntegrationTest.java renamed to persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/uniqueconstraints/UniqueColumnIntegrationTest.java

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import java.util.Optional;
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import jakarta.persistence.EntityManager;
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import jakarta.persistence.EntityManagerFactory;
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import jakarta.persistence.Persistence;
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import org.hibernate.exception.ConstraintViolationException;
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import org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException;
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import org.junit.Assert;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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import jakarta.persistence.EntityManager;
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import jakarta.persistence.EntityManagerFactory;
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import jakarta.persistence.Persistence;
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public class UniqueColumnIntegrationTest {
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private static EntityManagerFactory factory;
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} catch (Exception ex) {
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Assert.assertTrue(Optional.of(ex)
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.map(Throwable::getCause)
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.filter(x -> x instanceof ConstraintViolationException)
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.filter(x -> x instanceof JdbcSQLIntegrityConstraintViolationException)
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.isPresent());
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} finally {
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entityManager.getTransaction().rollback();
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} catch (Exception ex) {
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Assert.assertTrue(Optional.of(ex)
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.map(Throwable::getCause)
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.filter(x -> x instanceof ConstraintViolationException)
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.filter(x -> x instanceof JdbcSQLIntegrityConstraintViolationException)
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.isPresent());
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} finally {
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entityManager.getTransaction().rollback();
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} catch (Exception ex) {
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Assert.assertTrue(Optional.of(ex)
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.map(Throwable::getCause)
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.filter(x -> x instanceof ConstraintViolationException)
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.filter(x -> x instanceof JdbcSQLIntegrityConstraintViolationException)
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.isPresent());
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} finally {
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entityManager.getTransaction().rollback();

persistence-modules/java-jpa-3/src/test/java/com/baeldung/jpa/uniqueconstraints/UniqueConstraintIntegrationTest.java renamed to persistence-modules/java-jpa/src/test/java/com/baeldung/jpa/uniqueconstraints/UniqueConstraintIntegrationTest.java

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import java.util.Optional;
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import jakarta.persistence.EntityManager;
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import jakarta.persistence.EntityManagerFactory;
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import jakarta.persistence.Persistence;
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import org.hibernate.exception.ConstraintViolationException;
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import org.h2.jdbc.JdbcSQLIntegrityConstraintViolationException;
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import org.junit.Assert;
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import org.junit.jupiter.api.BeforeAll;
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import org.junit.jupiter.api.Test;
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import jakarta.persistence.EntityManager;
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import jakarta.persistence.EntityManagerFactory;
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import jakarta.persistence.Persistence;
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public class UniqueConstraintIntegrationTest {
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private static EntityManagerFactory factory;
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private static EntityManager entityManager;
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} catch (Exception ex) {
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Assert.assertTrue(Optional.of(ex)
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.map(Throwable::getCause)
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.filter(x -> x instanceof ConstraintViolationException)
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.filter(x -> x instanceof JdbcSQLIntegrityConstraintViolationException)
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.isPresent());
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} finally {
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entityManager.getTransaction().rollback();
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} catch (Exception ex) {
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Assert.assertTrue(Optional.of(ex)
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.map(Throwable::getCause)
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.filter(x -> x instanceof ConstraintViolationException)
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.filter(x -> x instanceof JdbcSQLIntegrityConstraintViolationException)
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.isPresent());
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} finally {
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entityManager.getTransaction().rollback();
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} catch (Exception ex) {
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Assert.assertTrue(Optional.of(ex)
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.map(Throwable::getCause)
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.filter(x -> x instanceof ConstraintViolationException)
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.filter(x -> x instanceof JdbcSQLIntegrityConstraintViolationException)
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.isPresent());
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} finally {
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entityManager.getTransaction().rollback();

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