Merge pull request #5336 from josephine-barboza/master
BAEL-2169 Guide to Ebean
This commit is contained in:
Tom Hombergs
GitHub
commit
90867eb6b4
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@ -249,7 +249,32 @@
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<version>${awaitility.version}</version>
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<scope>test</scope>
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</dependency>
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<dependency>
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<groupId>io.ebean</groupId>
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<artifactId>ebean</artifactId>
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<version>${ebean.version}</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>${slf4j.version}</version>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>${logback.version}</version>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-core</artifactId>
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<version>${logback.version}</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-log4j12</artifactId>
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<version>${slf4j.version}</version>
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</dependency>
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</dependencies>
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<build>
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@ -378,7 +403,24 @@
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</execution>
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</executions>
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</plugin>
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<plugin>
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<groupId>io.ebean</groupId>
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<artifactId>ebean-maven-plugin</artifactId>
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<version>11.11.2</version>
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<executions>
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<!-- enhance main classes -->
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<execution>
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<id>main</id>
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<phase>process-classes</phase>
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<configuration>
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<transformArgs>debug=1</transformArgs>
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</configuration>
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<goals>
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<goal>enhance</goal>
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</goals>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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@ -416,6 +458,9 @@
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<jmapper.version>1.6.0.1</jmapper.version>
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<org.apache.crunch.crunch-core.version>0.15.0</org.apache.crunch.crunch-core.version>
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<org.apache.hadoop.hadoop-client>2.2.0</org.apache.hadoop.hadoop-client>
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<ebean.version>11.22.4</ebean.version>
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<slf4j.version>1.7.25</slf4j.version>
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<logback.version>1.0.1</logback.version>
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</properties>
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</project>
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@ -0,0 +1,75 @@
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package com.baeldung.ebean.app;
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import java.util.Arrays;
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import com.baeldung.ebean.model.Address;
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import com.baeldung.ebean.model.Customer;
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import io.ebean.Ebean;
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import io.ebean.EbeanServer;
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import io.ebean.annotation.Transactional;
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public class App {
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public static void main(String[] args) {
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insertAndDeleteInsideTransaction();
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crudOperations();
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queryCustomers();
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}
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@Transactional
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public static void insertAndDeleteInsideTransaction() {
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Customer c1 = getCustomer();
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EbeanServer server = Ebean.getDefaultServer();
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server.save(c1);
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Customer foundC1 = server.find(Customer.class, c1.getId());
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server.delete(foundC1);
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}
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public static void crudOperations() {
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Address a1 = new Address("5, Wide Street", null, "New York");
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Customer c1 = new Customer("John Wide", a1);
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EbeanServer server = Ebean.getDefaultServer();
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server.save(c1);
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c1.setName("Jane Wide");
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c1.setAddress(null);
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server.save(c1);
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Customer foundC1 = Ebean.find(Customer.class, c1.getId());
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Ebean.delete(foundC1);
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}
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public static void queryCustomers() {
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Address a1 = new Address("1, Big Street", null, "New York");
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Customer c1 = new Customer("Big John", a1);
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Address a2 = new Address("2, Big Street", null, "New York");
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Customer c2 = new Customer("Big John", a2);
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Address a3 = new Address("3, Big Street", null, "San Jose");
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Customer c3 = new Customer("Big Bob", a3);
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Ebean.saveAll(Arrays.asList(c1, c2, c3));
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Customer customer = Ebean.find(Customer.class)
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.select("name")
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.fetch("address", "city")
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.where()
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.eq("city", "San Jose")
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.findOne();
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Ebean.deleteAll(Arrays.asList(c1, c2, c3));
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}
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private static Customer getCustomer() {
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Address a1 = new Address("1, Big Street", null, "New York");
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Customer c1 = new Customer("Big John", a1);
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return c1;
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}
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}
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@ -0,0 +1,26 @@
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package com.baeldung.ebean.app;
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import java.util.Properties;
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import io.ebean.EbeanServer;
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import io.ebean.EbeanServerFactory;
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import io.ebean.config.ServerConfig;
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public class App2 {
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public static void main(String[] args) {
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ServerConfig cfg = new ServerConfig();
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cfg.setDefaultServer(true);
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Properties properties = new Properties();
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properties.put("ebean.db.ddl.generate", "true");
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properties.put("ebean.db.ddl.run", "true");
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properties.put("datasource.db.username", "sa");
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properties.put("datasource.db.password", "");
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properties.put("datasource.db.databaseUrl", "jdbc:h2:mem:app2");
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properties.put("datasource.db.databaseDriver", "org.h2.Driver");
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cfg.loadFromProperties(properties);
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EbeanServer server = EbeanServerFactory.create(cfg);
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}
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}
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@ -0,0 +1,48 @@
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package com.baeldung.ebean.model;
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import javax.persistence.Entity;
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@Entity
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public class Address extends BaseModel {
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public Address(String addressLine1, String addressLine2, String city) {
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super();
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this.addressLine1 = addressLine1;
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this.addressLine2 = addressLine2;
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this.city = city;
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}
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private String addressLine1;
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private String addressLine2;
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private String city;
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public String getAddressLine1() {
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return addressLine1;
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}
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public void setAddressLine1(String addressLine1) {
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this.addressLine1 = addressLine1;
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}
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public String getAddressLine2() {
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return addressLine2;
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}
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public void setAddressLine2(String addressLine2) {
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this.addressLine2 = addressLine2;
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}
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public String getCity() {
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return city;
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}
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public void setCity(String city) {
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this.city = city;
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}
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@Override
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public String toString() {
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return "Address [id=" + id + ", addressLine1=" + addressLine1 + ", addressLine2=" + addressLine2 + ", city=" + city + "]";
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}
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}
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@ -0,0 +1,59 @@
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package com.baeldung.ebean.model;
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import java.time.Instant;
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import javax.persistence.Id;
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import javax.persistence.MappedSuperclass;
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import javax.persistence.Version;
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import io.ebean.annotation.WhenCreated;
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import io.ebean.annotation.WhenModified;
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@MappedSuperclass
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public abstract class BaseModel {
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@Id
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protected long id;
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@Version
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protected long version;
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@WhenCreated
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protected Instant createdOn;
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@WhenModified
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protected Instant modifiedOn;
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public long getId() {
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return id;
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}
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public void setId(long id) {
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this.id = id;
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}
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public Instant getCreatedOn() {
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return createdOn;
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}
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public void setCreatedOn(Instant createdOn) {
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this.createdOn = createdOn;
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}
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public Instant getModifiedOn() {
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return modifiedOn;
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}
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public void setModifiedOn(Instant modifiedOn) {
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this.modifiedOn = modifiedOn;
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}
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public long getVersion() {
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return version;
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}
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public void setVersion(long version) {
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this.version = version;
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}
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}
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@ -0,0 +1,42 @@
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package com.baeldung.ebean.model;
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import javax.persistence.CascadeType;
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import javax.persistence.Entity;
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import javax.persistence.OneToOne;
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@Entity
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public class Customer extends BaseModel {
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public Customer(String name, Address address) {
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super();
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this.name = name;
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this.address = address;
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}
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private String name;
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@OneToOne(cascade = CascadeType.ALL)
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Address address;
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public String getName() {
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return name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public Address getAddress() {
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return address;
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}
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public void setAddress(Address address) {
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this.address = address;
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}
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@Override
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public String toString() {
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return "Customer [id=" + id + ", name=" + name + ", address=" + address + "]";
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}
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}
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@ -0,0 +1,3 @@
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entity-packages: com.baeldung.ebean.model
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transactional-packages: com.baeldung.ebean.app
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querybean-packages: com.baeldung.ebean.app
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@ -0,0 +1,7 @@
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ebean.db.ddl.generate=true
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ebean.db.ddl.run=true
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datasource.db.username=sa
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datasource.db.password=
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datasource.db.databaseUrl=jdbc:h2:mem:customer
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datasource.db.databaseDriver=org.h2.Driver
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@ -6,7 +6,9 @@
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</pattern>
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</encoder>
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</appender>
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<logger name="io.ebean.DDL" level="TRACE"/>
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<logger name="io.ebean.SQL" level="TRACE"/>
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<logger name="io.ebean.TXN" level="TRACE"/>
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<root level="INFO">
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<appender-ref ref="STDOUT" />
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</root>
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