Bael 1908 - Guide to SqlResultSetMapping (#4586)

* Commit for Eval Article pull request * Revert "Commit for Eval Article pull request" * BAEL-1908 Initial Commit
2018-07-08 07:44:42 -04:00
parent 28166a73de
commit f3237ef2c5
8 changed files with 281 additions and 0 deletions
@@ -0,0 +1,43 @@
+package com.baeldung.sqlresultsetmapping;
+
+import javax.persistence.*;
+
+
+@SqlResultSetMapping(
+        name="EmployeeResult",
+        entities={
+                @EntityResult(
+                        entityClass = com.baeldung.sqlresultsetmapping.Employee.class,
+                        fields={@FieldResult(name="id",column="employeeNumber"),
+                                 @FieldResult(name="name", column="name")}
+                )
+        }
+)
+@NamedNativeQuery(
+        name="Employees",
+        query="SELECT id as employeeNumber, name FROM EMPLOYEE",
+        resultSetMapping = "EmployeeResult"
+)
+@Entity
+public class Employee {
+
+    @Id
+    private Long id;
+    private String name;
+
+    public Long getId() {
+        return id;
+    }
+
+    public void setId(Long id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
@@ -0,0 +1,80 @@
+package com.baeldung.sqlresultsetmapping;
+
+import javax.persistence.*;
+
+@SqlResultSetMappings(value = {
+    @SqlResultSetMapping(name = "ScheduleResult",
+        classes = { @ConstructorResult(targetClass = com.baeldung.sqlresultsetmapping.ScheduledDay.class,
+        columns = { @ColumnResult(name = "id", type = Long.class),
+                    @ColumnResult(name = "employeeId", type = Long.class),
+                    @ColumnResult(name = "hourIn"),
+                    @ColumnResult(name = "hourOut"),
+                    @ColumnResult(name = "dayOfWeek") }) }),
+    @SqlResultSetMapping(name = "FridayEmployeeResult",
+                         columns = { @ColumnResult(name = "employeeId") }),
+    @SqlResultSetMapping(name = "EmployeeScheduleResults",
+                         entities = { @EntityResult(entityClass = com.baeldung.sqlresultsetmapping.Employee.class),
+                                      @EntityResult(entityClass = com.baeldung.sqlresultsetmapping.ScheduledDay.class)
+    }) })
+@NamedNativeQuery(name = "FridayEmployees",
+        query = "SELECT employeeId FROM schedule_days WHERE dayOfWeek = 'FRIDAY'",
+        resultSetMapping = "FridayEmployeeResult")
+
+@NamedNativeQuery(name = "Schedules",
+        query = "SELECT * FROM schedule_days WHERE hourIn = 8",
+        resultSetMapping = "ScheduleResult")
+@Entity
+@Table(name = "SCHEDULE_DAYS")
+public class ScheduledDay {
+
+    @Id
+    @GeneratedValue
+    private Long id;
+    private Long employeeId;
+    private Integer hourIn;
+    private Integer hourOut;
+    private String dayOfWeek;
+
+    public ScheduledDay() {
+    }
+
+    public ScheduledDay(Long id, Long employeeId, Integer hourIn, Integer hourOut, String dayofWeek) {
+        this.id = id;
+        this.employeeId = employeeId;
+        this.hourIn = hourIn;
+        this.hourOut = hourOut;
+        this.dayOfWeek = dayofWeek;
+    }
+
+    public Long getEmployeeId() {
+        return employeeId;
+    }
+
+    public void setEmployeeId(Long employeeId) {
+        this.employeeId = employeeId;
+    }
+
+    public Integer getHourIn() {
+        return hourIn;
+    }
+
+    public void setHourIn(Integer hourIn) {
+        this.hourIn = hourIn;
+    }
+
+    public Integer getHourOut() {
+        return hourOut;
+    }
+
+    public void setHourOut(Integer hourOut) {
+        this.hourOut = hourOut;
+    }
+
+    public String getDayOfWeek() {
+        return dayOfWeek;
+    }
+
+    public void setDayOfWeek(String dayOfWeek) {
+        this.dayOfWeek = dayOfWeek;
+    }
+}