Ebean Chnages

libraries-data/src/main/java/com/baeldung/ebean/app/App.java

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+package com.baeldung.ebean.app;
+
+import java.util.Arrays;
+
+import com.baeldung.ebean.model.Address;
+import com.baeldung.ebean.model.Customer;
+
+import io.ebean.Ebean;
+import io.ebean.EbeanServer;
+import io.ebean.annotation.Transactional;
+
+public class App {
+
+    public static void main(String[] args) {
+        insertAndDeleteInsideTransaction();
+        crudOperations();
+        queryCustomers();
+    }
+
+    @Transactional
+    public static void insertAndDeleteInsideTransaction() {
+
+        Customer c1 = getCustomer();
+        EbeanServer server = Ebean.getDefaultServer();
+        server.save(c1);
+        Customer foundC1 = server.find(Customer.class, c1.getId());
+        server.delete(foundC1);
+    }
+
+    public static void crudOperations() {
+
+        Address a1 = new Address("5, Wide Street", null, "New York");
+        Customer c1 = new Customer("John Wide", a1);
+
+        EbeanServer server = Ebean.getDefaultServer();
+        server.save(c1);
+
+        c1.setName("Jane Wide");
+        c1.setAddress(null);
+        server.save(c1);
+
+        Customer foundC1 = Ebean.find(Customer.class, c1.getId());
+
+        Ebean.delete(foundC1);
+    }
+
+    public static void queryCustomers() {
+        Address a1 = new Address("1, Big Street", null, "New York");
+        Customer c1 = new Customer("Big John", a1);
+
+        Address a2 = new Address("2, Big Street", null, "New York");
+        Customer c2 = new Customer("Big John", a2);
+
+        Address a3 = new Address("3, Big Street", null, "San Jose");
+        Customer c3 = new Customer("Big Bob", a3);
+
+        Ebean.saveAll(Arrays.asList(c1, c2, c3));
+
+        Customer customer = Ebean.find(Customer.class)
+            .select("name")
+            .fetch("address", "city")
+            .where()
+            .eq("city", "San Jose")
+            .findOne();
+
+        Ebean.deleteAll(Arrays.asList(c1, c2, c3));
+    }
+
+    private static Customer getCustomer() {
+        Address a1 = new Address("1, Big Street", null, "New York");
+        Customer c1 = new Customer("Big John", a1);
+        return c1;
+    }
+
+}

libraries-data/src/main/java/com/baeldung/ebean/app/App2.java

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+package com.baeldung.ebean.app;
+
+import java.util.Properties;
+
+import io.ebean.EbeanServer;
+import io.ebean.EbeanServerFactory;
+import io.ebean.config.ServerConfig;
+
+public class App2 {
+
+    public static void main(String[] args) {
+        ServerConfig cfg = new ServerConfig();
+        cfg.setDefaultServer(true);
+        Properties properties = new Properties();
+        properties.put("ebean.db.ddl.generate", "true");
+        properties.put("ebean.db.ddl.run", "true");
+        properties.put("datasource.db.username", "sa");
+        properties.put("datasource.db.password", "");
+        properties.put("datasource.db.databaseUrl", "jdbc:h2:mem:app2");
+        properties.put("datasource.db.databaseDriver", "org.h2.Driver");
+        cfg.loadFromProperties(properties);
+        EbeanServer server = EbeanServerFactory.create(cfg);
+
+    }
+
+}

libraries-data/src/main/java/com/baeldung/ebean/model/Address.java

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+package com.baeldung.ebean.model;
+
+import javax.persistence.Entity;
+
+@Entity
+public class Address extends BaseModel{
+
+    public Address(String addressLine1, String addressLine2, String city) {
+        super();
+        this.addressLine1 = addressLine1;
+        this.addressLine2 = addressLine2;
+        this.city = city;
+    }
+    
+    private String addressLine1;
+    private String addressLine2;
+    private String city;
+    
+    public String getAddressLine1() {
+        return addressLine1;
+    }
+    public void setAddressLine1(String addressLine1) {
+        this.addressLine1 = addressLine1;
+    }
+    public String getAddressLine2() {
+        return addressLine2;
+    }
+    public void setAddressLine2(String addressLine2) {
+        this.addressLine2 = addressLine2;
+    }
+    public String getCity() {
+        return city;
+    }
+    public void setCity(String city) {
+        this.city = city;
+    }
+    @Override
+    public String toString() {
+        return "Address [id=" + id + ", addressLine1=" + addressLine1 + ", addressLine2=" + addressLine2 + ", city=" + city + "]";
+    }
+    
+}

libraries-data/src/main/java/com/baeldung/ebean/model/BaseModel.java

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+package com.baeldung.ebean.model;
+
+import java.time.Instant;
+
+import javax.persistence.Id;
+import javax.persistence.MappedSuperclass;
+import javax.persistence.Version;
+
+import io.ebean.annotation.WhenCreated;
+import io.ebean.annotation.WhenModified;
+
+@MappedSuperclass
+public abstract class BaseModel {
+
+    @Id
+    protected long id;
+    
+    @Version
+    protected long version;
+    
+    @WhenCreated
+    protected Instant createdOn;
+    
+    @WhenModified
+    protected Instant modifiedOn;
+
+    public long getId() {
+        return id;
+    }
+
+    public void setId(long id) {
+        this.id = id;
+    }
+
+    public Instant getCreatedOn() {
+        return createdOn;
+    }
+
+    public void setCreatedOn(Instant createdOn) {
+        this.createdOn = createdOn;
+    }
+
+    public Instant getModifiedOn() {
+        return modifiedOn;
+    }
+
+    public void setModifiedOn(Instant modifiedOn) {
+        this.modifiedOn = modifiedOn;
+    }
+
+    public long getVersion() {
+        return version;
+    }
+
+    public void setVersion(long version) {
+        this.version = version;
+    }
+    
+}

libraries-data/src/main/java/com/baeldung/ebean/model/Customer.java

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+package com.baeldung.ebean.model;
+
+import javax.persistence.CascadeType;
+import javax.persistence.Entity;
+import javax.persistence.OneToOne;
+
+@Entity
+public class Customer extends BaseModel {
+
+    public Customer(String name, Address address) {
+        super();
+        this.name = name;
+        this.address = address;
+    }
+
+    private String name;
+
+    @OneToOne(cascade = CascadeType.ALL)
+    Address address;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public Address getAddress() {
+        return address;
+    }
+
+    public void setAddress(Address address) {
+        this.address = address;
+    }
+
+    @Override
+    public String toString() {
+        return "Customer [id=" + id + ", name=" + name + ", address=" + address + "]";
+    }
+
+}

libraries-data/src/main/resources/application.properties

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+ebean.db.ddl.generate=true
+ebean.db.ddl.run=true
+
+datasource.db.username=sa
+datasource.db.password=
+datasource.db.databaseUrl=jdbc:h2:mem:customer
+datasource.db.databaseDriver=org.h2.Driver

libraries-data/src/main/resources/ebean.mf

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+entity-packages: com.baeldung.ebean.model
+transactional-packages: com.baeldung.ebean.app
+querybean-packages: com.baeldung.ebean.app

libraries-data/src/main/resources/logback.yml

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+<logger name="io.ebean.DDL" level="TRACE"/>
+<logger name="io.ebean.SQL" level="TRACE"/>
+<logger name="io.ebean.TXN" level="TRACE"/>