diff --git a/persistence-modules/java-jdbi/README.md b/persistence-modules/java-jdbi/README.md new file mode 100644 index 0000000000..3bab6faa29 --- /dev/null +++ b/persistence-modules/java-jdbi/README.md @@ -0,0 +1,2 @@ +### Relevant Articles: +- [Guide to CockroachDB in Java](http://www.baeldung.com/cockroachdb-java) diff --git a/persistence-modules/java-jdbi/pom.xml b/persistence-modules/java-jdbi/pom.xml new file mode 100644 index 0000000000..392f0bdcbf --- /dev/null +++ b/persistence-modules/java-jdbi/pom.xml @@ -0,0 +1,40 @@ + + + + + parent-modules + com.baeldung + 1.0.0-SNAPSHOT + ../../ + + + 4.0.0 + + java-jdbi + 1.0-SNAPSHOT + + + + org.jdbi + jdbi3-core + 3.1.0 + + + org.hsqldb + hsqldb + 2.4.0 + test + + + + + + Central + Central + http://repo1.maven.org/maven2/ + default + + + \ No newline at end of file diff --git a/persistence-modules/java-jdbi/src/test/java/com/baeldung/persistence/jdbi/JdbiTest.java b/persistence-modules/java-jdbi/src/test/java/com/baeldung/persistence/jdbi/JdbiTest.java new file mode 100644 index 0000000000..503bf90fdb --- /dev/null +++ b/persistence-modules/java-jdbi/src/test/java/com/baeldung/persistence/jdbi/JdbiTest.java @@ -0,0 +1,338 @@ +package com.baeldung.persistence.jdbi; + +import org.jdbi.v3.core.Handle; +import org.jdbi.v3.core.Jdbi; +import org.jdbi.v3.core.result.ResultBearing; +import org.jdbi.v3.core.result.ResultProducer; +import org.jdbi.v3.core.statement.Query; +import org.jdbi.v3.core.statement.StatementContext; +import org.jdbi.v3.core.statement.Update; +import org.junit.Test; + +import java.sql.PreparedStatement; +import java.sql.SQLException; +import java.util.*; +import java.util.function.Supplier; +import java.util.stream.Stream; + +import static org.junit.Assert.*; + +public class JdbiTest { + + @Test + public void whenJdbiCreated_thenSuccess() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + + Jdbi.create("WRONG"); + } + + @Test + public void whenJdbiWithProperties_thenSuccess() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.open().close(); + Properties properties = new Properties(); + properties.setProperty("username", "sa"); + properties.setProperty("password", ""); + jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", properties); + jdbi.open().close(); + } + + @Test + public void whenHandle_thenBoh() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + final Handle[] handleRef = new Handle[1]; + boolean closed = jdbi.withHandle(handle -> { + handleRef[0] = handle; + return handle.isClosed(); + }); + + assertFalse(closed); + assertTrue(handleRef[0].isClosed()); + } + + @Test + public void whenTableCreated_thenInsertIsPossible() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + int updateCount = handle.execute("create table PROJECT_1 (id integer identity, name varchar(50), url varchar(100))"); + + assertEquals(0, updateCount); + + updateCount = handle.execute("INSERT INTO PROJECT_1 VALUES (1, 'tutorials', 'github.com/eugenp/tutorials')"); + + assertEquals(1, updateCount); + }); + } + + @Test + public void whenIdentityColumn_thenInsertReturnsNewId() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_2 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + Update update = handle.createUpdate( + "INSERT INTO PROJECT_2 (NAME, URL) VALUES ('tutorials', 'github.com/eugenp/tutorials')"); + ResultBearing generatedKeys = update.executeAndReturnGeneratedKeys(); + + assertEquals(0, generatedKeys.mapToMap().findOnly().get("id")); + + update = handle.createUpdate( + "INSERT INTO PROJECT_2 (NAME, URL) VALUES ('REST with Spring', 'github.com/eugenp/REST-With-Spring')"); + + assertEquals(1, generatedKeys.mapToMap().findOnly().get("id")); + }); + } + + @Test + public void whenSelectMapToMap_thenResultsAreMapEntries() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_3 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_3 (NAME, URL) VALUES ('tutorials', 'github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_3 (NAME, URL) VALUES ('REST with Spring', 'github.com/eugenp/REST-With-Spring')"); + Query query = handle.createQuery("select * from PROJECT_3 order by id"); + List> list = query.mapToMap().list(); + + assertEquals("tutorials", list.get(0).get("name")); + assertEquals("REST with Spring", list.get(1).get("name")); + }); + } + + @Test + public void whenSelectMapToString_thenResultIsString() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_4 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_4 (NAME, URL) VALUES ('tutorials', 'github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_4 (NAME, URL) VALUES ('REST with Spring', 'github.com/eugenp/REST-With-Spring')"); + Query query = handle.createQuery("select name, url from PROJECT_4 order by id"); + List list = query.mapTo(String.class).list(); + + assertEquals("tutorials", list.get(0)); + assertEquals("REST with Spring", list.get(1)); + }); + } + + @Test + public void whenSelectMapToString_thenStream() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_5 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_5 (NAME, URL) VALUES ('tutorials', 'github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_5 (NAME, URL) VALUES ('REST with Spring', 'github.com/eugenp/REST-With-Spring')"); + Query query = handle.createQuery("select name, url from PROJECT_5 order by id"); + query.mapTo(String.class).useStream((Stream stream) -> assertEquals("tutorials", stream.findFirst().get())); + }); + } + + @Test + public void whenNoResults_thenFindFirstReturnsNone() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_6 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + + assertFalse(handle.createQuery("select * from project_6").mapToMap().findFirst().isPresent()); + }); + } + + @Test + public void whenMultipleResults_thenFindFirstReturnsFirst() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_7 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_7 (NAME, URL) VALUES ('tutorials', 'github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_7 (NAME, URL) VALUES ('REST with Spring', 'github.com/eugenp/REST-With-Spring')"); + + Query query = handle.createQuery("select * from project_7 order by id"); + Optional> first = query.mapToMap().findFirst(); + + assertTrue(first.isPresent()); + assertEquals("tutorials", first.get().get("name")); + }); + } + + @Test + public void whenNoResults_thenFindOnlyThrows() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_8 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + + try { + handle.createQuery("select * from project_8").mapToMap().findOnly(); + + fail("Exception expected"); + } catch (Exception e) { + e.printStackTrace(); + } + }); + } + + @Test + public void whenMultipleResults_thenFindOnlyThrows() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_9 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_9 (NAME, URL) VALUES ('tutorials', 'github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_9 (NAME, URL) VALUES ('REST with Spring', 'github.com/eugenp/REST-With-Spring')"); + + try { + Query query = handle.createQuery("select * from project_9"); + Map onlyResult = query.mapToMap().findOnly(); + + fail("Exception expected"); + } catch (Exception e) { + e.printStackTrace(); + } + }); + } + + @Test + public void whenParameters_thenReplacement() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_10 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + Update update1 = handle.createUpdate("INSERT INTO PROJECT_10 (NAME, URL) VALUES (?, ?)"); + update1.bind(0, "tutorials"); + update1.bind(1, "github.com/eugenp/tutorials"); + int rows = update1.execute(); + + assertEquals(1, rows); + + Update update2 = handle.createUpdate("INSERT INTO PROJECT_10 (NAME, URL) VALUES (:name, :url)"); + update2.bind("name", "REST with Spring"); + update2.bind("url", "github.com/eugenp/REST-With-Spring"); + rows = update2.execute(); + + assertEquals(1, rows); + + List> list = + handle.select("SELECT * FROM PROJECT_10 WHERE NAME = 'tutorials'").mapToMap().list(); + + assertEquals(1, list.size()); + + list = handle.select("SELECT * FROM PROJECT_10 WHERE NAME = 'REST with Spring'").mapToMap().list(); + + assertEquals(1, list.size()); + }); + } + + @Test + public void whenMultipleParameters_thenReplacement() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.execute("create table PROJECT_11 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + Update update = handle.createUpdate("INSERT INTO PROJECT_11 (NAME, URL) VALUES (:name, :url)"); + Map params = new HashMap<>(); + params.put("name", "REST with Spring"); + params.put("url", "github.com/eugenp/REST-With-Spring"); + update.bindMap(params); + int rows = update.execute(); + + assertEquals(1, rows); + + List> list = + handle.select("SELECT * FROM PROJECT_11").mapToMap().list(); + + assertEquals(1, list.size()); + + class Params { + private String name; + private String url; + + public Params(String name, String url) { + this.name = name; + this.url = url; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } + + public String getUrl() { + return url; + } + + public void setUrl(String url) { + this.url = url; + } + } + + update.bindBean(new Params("tutorials", "github.com/eugenp/tutorials")); + rows = update.execute(); + + assertEquals(1, rows); + + list = handle.select("SELECT * FROM PROJECT_11").mapToMap().list(); + + assertEquals(2, list.size()); + }); + } + + @Test + public void whenTransactionRollback_thenNoDataInserted() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.useTransaction(h -> { + handle.execute("create table PROJECT_12 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_12 (NAME, URL) VALUES ('tutorials', 'https://github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_12 (NAME, URL) VALUES ('REST with Spring', 'https://github.com/eugenp/REST-With-Spring')"); + handle.rollback(); + List> list = handle.select("SELECT * FROM PROJECT_12").mapToMap().list(); + + assertEquals(0, list.size()); + }); + }); + } + + @Test + public void whenTransactionRollbackThenCommit_thenOnlyLastInserted() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + handle.useTransaction((Handle h) -> { + assertEquals(handle, h); + + handle.execute("create table PROJECT_13 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + handle.execute("INSERT INTO PROJECT_13 (NAME, URL) VALUES ('tutorials', 'https://github.com/eugenp/tutorials')"); + handle.rollback(); + handle.begin(); + handle.execute("INSERT INTO PROJECT_13 (NAME, URL) VALUES ('REST with Spring', 'https://github.com/eugenp/REST-With-Spring')"); + handle.rollback(); + handle.begin(); + handle.execute("INSERT INTO PROJECT_13 (NAME, URL) VALUES ('tutorials', 'https://github.com/eugenp/tutorials')"); + handle.execute("INSERT INTO PROJECT_13 (NAME, URL) VALUES ('REST with Spring', 'https://github.com/eugenp/REST-With-Spring')"); + handle.commit(); + }); + List> list = handle.select("SELECT * FROM PROJECT_13").mapToMap().list(); + + assertEquals(2, list.size()); + }); + } + + + @Test + public void whenException_thenTransactionIsRolledBack() { + Jdbi jdbi = Jdbi.create("jdbc:hsqldb:mem:testDB", "sa", ""); + jdbi.useHandle(handle -> { + try { + handle.useTransaction(h -> { + h.execute("create table PROJECT_14 (ID IDENTITY, NAME VARCHAR (50), URL VARCHAR (100))"); + h.execute("INSERT INTO PROJECT_14 (NAME, URL) VALUES ('tutorials', 'https://github.com/eugenp/tutorials')"); + List> list = handle.select("SELECT * FROM PROJECT_14").mapToMap().list(); + + assertTrue(h.isInTransaction()); + assertEquals(1, list.size()); + + throw new Exception("rollback"); + }); + } catch (Exception ignored) {} + List> list = handle.select("SELECT * FROM PROJECT_14").mapToMap().list(); + + assertFalse(handle.isInTransaction()); + assertEquals(0, list.size()); + }); + } + +} diff --git a/pom.xml b/pom.xml index 463f060240..70a3bbc5b4 100644 --- a/pom.xml +++ b/pom.xml @@ -280,6 +280,7 @@ lucene vraptor persistence-modules/java-cockroachdb + persistence-modules/java-jdbi jersey java-spi