[R1] Add validation for entity class as well

src/main/java/com/mirna/hospitalmanagementapi/domain/entities/Address.java

@@ -4,6 +4,7 @@ import com.mirna.hospitalmanagementapi.domain.dtos.AddressDTO;
 import com.mirna.hospitalmanagementapi.domain.dtos.DoctorDTO;
 
 import jakarta.persistence.Embeddable;
+import jakarta.validation.constraints.NotBlank;
 
 /**
 * 
@@ -32,12 +33,23 @@ public class Address {
 		this.houseNumber = addressDTO.houseNumber();
 	}
 	
+	@NotBlank(message="street cannot be blank")
 	private String street;
+	
+	@NotBlank(message="neighborhood cannot be blank")
 	private String neighborhood;
+	
+	@NotBlank(message="zipCode cannot be blank")
 	private String zipCode;
+	
+	@NotBlank(message="city cannot be blank")
 	private String city;
+	
+	@NotBlank(message="state cannot be blank")
 	private String state;
+	
 	private String additionalDetails;
+	
 	private String houseNumber;
 	
 	/**

src/main/java/com/mirna/hospitalmanagementapi/domain/entities/Doctor.java

@@ -11,6 +11,8 @@ import jakarta.persistence.GeneratedValue;
 import jakarta.persistence.GenerationType;
 import jakarta.persistence.Id;
 import jakarta.persistence.Table;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
 
 /**
 * 
@@ -35,16 +37,28 @@ public class Doctor {
 		this.address = new Address(doctorDTO.address());
 	}
 	
+	public Doctor(){}
+
 	@Id @GeneratedValue(strategy = GenerationType.IDENTITY)
 	private Long id;
+	
+	@NotBlank(message="name cannot be blank")
 	private String name;
+	
+	@NotBlank(message="email cannot be blank")
 	private String email;
+	
+	@NotBlank(message="crm cannot be blank")
 	private String crm;
+	
+	@NotBlank(message="telephone cannot be blank")
 	private String telephone;
 	
+	@NotNull(message="specialty cannot be null")
 	@Enumerated(EnumType.STRING)
 	private Specialty specialty;
 	
+	@NotNull(message="address cannot be null")
 	@Embedded
 	private Address address;