diff --git a/persistence-modules/core-java-persistence/pom.xml b/persistence-modules/core-java-persistence/pom.xml index 1224523ac7..3dd8da1b7a 100644 --- a/persistence-modules/core-java-persistence/pom.xml +++ b/persistence-modules/core-java-persistence/pom.xml @@ -60,6 +60,7 @@ + 1.4.200 42.2.5.jre7 3.10.0 2.4.0 diff --git a/persistence-modules/core-java-persistence/src/test/java/com/baeldung/genkeys/JdbcInsertIdIntegrationTest.java b/persistence-modules/core-java-persistence/src/test/java/com/baeldung/genkeys/JdbcInsertIdIntegrationTest.java new file mode 100644 index 0000000000..f1ea5bfbb4 --- /dev/null +++ b/persistence-modules/core-java-persistence/src/test/java/com/baeldung/genkeys/JdbcInsertIdIntegrationTest.java @@ -0,0 +1,93 @@ +package com.baeldung.genkeys; + +import org.junit.AfterClass; +import org.junit.BeforeClass; +import org.junit.Test; + +import java.sql.Connection; +import java.sql.DriverManager; +import java.sql.PreparedStatement; +import java.sql.ResultSet; +import java.sql.SQLException; +import java.sql.Statement; + +import static org.assertj.core.api.Assertions.assertThat; + +public class JdbcInsertIdIntegrationTest { + + private static final String QUERY = "insert into persons (name) values (?)"; + + private static Connection connection; + + @BeforeClass + public static void setUp() throws Exception { + connection = DriverManager.getConnection("jdbc:h2:mem:generated-keys", "sa", ""); + connection + .createStatement() + .execute("create table persons(id bigint auto_increment, name varchar(255))"); + } + + @AfterClass + public static void tearDown() throws SQLException { + connection + .createStatement() + .execute("drop table persons"); + connection.close(); + } + + @Test + public void givenInsert_whenUsingAutoGenFlag_thenBeAbleToFetchTheIdAfterward() throws SQLException { + try (PreparedStatement statement = connection.prepareStatement(QUERY, Statement.RETURN_GENERATED_KEYS)) { + statement.setString(1, "Foo"); + int affectedRows = statement.executeUpdate(); + assertThat(affectedRows).isPositive(); + + try (ResultSet keys = statement.getGeneratedKeys()) { + assertThat(keys.next()).isTrue(); + assertThat(keys.getLong(1)).isGreaterThanOrEqualTo(1); + } + } + } + + @Test + public void givenInsert_whenUsingAutoGenFlagViaExecute_thenBeAbleToFetchTheIdAfterward() throws SQLException { + try (Statement statement = connection.createStatement()) { + String query = "insert into persons (name) values ('Foo')"; + int affectedRows = statement.executeUpdate(query, Statement.RETURN_GENERATED_KEYS); + assertThat(affectedRows).isPositive(); + + try (ResultSet keys = statement.getGeneratedKeys()) { + assertThat(keys.next()).isTrue(); + assertThat(keys.getLong(1)).isGreaterThanOrEqualTo(1); + } + } + } + + @Test + public void givenInsert_whenUsingReturningCols_thenBeAbleToFetchTheIdAfterward() throws SQLException { + try (PreparedStatement statement = connection.prepareStatement(QUERY, new String[] { "id" })) { + statement.setString(1, "Foo"); + int affectedRows = statement.executeUpdate(); + assertThat(affectedRows).isPositive(); + + try (ResultSet keys = statement.getGeneratedKeys()) { + assertThat(keys.next()).isTrue(); + assertThat(keys.getLong(1)).isGreaterThanOrEqualTo(1); + } + } + } + + @Test + public void givenInsert_whenUsingReturningColsViaExecute_thenBeAbleToFetchTheIdAfterward() throws SQLException { + try (Statement statement = connection.createStatement()) { + String query = "insert into persons (name) values ('Foo')"; + int affectedRows = statement.executeUpdate(query, new String[] { "id" }); + assertThat(affectedRows).isPositive(); + + try (ResultSet keys = statement.getGeneratedKeys()) { + assertThat(keys.next()).isTrue(); + assertThat(keys.getLong(1)).isGreaterThanOrEqualTo(1); + } + } + } +}