我想读取带有where(双变量)的对象时遇到问题
@Entity
@Table(name = "branchbuilding", uniqueConstraints={@UniqueConstraint(columnNames={"buildingname","branch_fk"})})//uniqueConstraints={@UniqueConstraint(columnNames={"username","buildingname"})}
public class BranchBuildingEntity implements Serializable {
@Id
@GeneratedValue
private int id;
@Column(name = "buildingname", length = 64)
private String buildingName;
@Column(name = "description", columnDefinition = "mediumtext", length = 16777215)
private String description;
@Embedded
@AttributeOverrides({
@AttributeOverride(name = "bremainAdr", column = @Column(name = "bremainadr", columnDefinition = "mediumtext", length = 16777215, nullable=true)),
@AttributeOverride(name = "bmainStreet", column = @Column(name = "bmainstreet", length = 64, nullable=true)),
@AttributeOverride(name = "bstate", column = @Column(length = 64, nullable=true)),
@AttributeOverride(name = "bcity", column = @Column(length = 64, nullable=true)),
@AttributeOverride(name = "bcentralBuilding", column = @Column(name = "bcentralbuilding", columnDefinition = "tinyint", nullable=true)),
@AttributeOverride(name = "blongitude", column = @Column(nullable=true)),
@AttributeOverride(name = "blatitude", column = @Column(nullable=true))
})
Address buildingAdr;
@ManyToOne(fetch = FetchType.EAGER)
@JoinColumn(name = "branch_fk", referencedColumnName = "id", nullable = false)
private BranchEntity branch;
@OneToMany(mappedBy = "branchbuilding", fetch = FetchType.LAZY, cascade = CascadeType.ALL)
@OnDelete(action=OnDeleteAction.CASCADE)
@Cascade(org.hibernate.annotations.CascadeType.DELETE_ORPHAN)
private Set<BuildingTelEntity> buildingtel = new HashSet<BuildingTelEntity>();
//some setter and getter
A应力润滑:
@Embeddable
public class Address implements Serializable {
String bstate;
String bcity;
String bmainStreet;
String bremainAdr;
double blongitude;
double blatitude;
int bcentralBuilding;
//Some getter and Setter
这是我的查询管理器:
public List<T> executeQuery(String query, Object... values) throws DatabaseException {
logger.info("it's at the first of executeQuery(String query, Object... values)");
List<Object> ret;
Session sess = null;
boolean freed = false;
List<T> result;
try {
sess = HibernateUtil.getSession();
Transaction tx = sess.beginTransaction();
Query q = sess.createQuery(query);
for (int i = 0; i < values.length; i++) {
if (values[i].getClass().getSimpleName().equals("Long")) {
q.setLong(i, (Long) values[i]);
} else if (values[i].getClass().getSimpleName().equals("String")) {
q.setString(i, (String) values[i]);
} else if (values[i].getClass().getSimpleName().equals("Integer")) {
q.setInteger(i, (Integer) values[i]);
} else if (values[i].getClass().getSimpleName().equals("Double")) {
q.setDouble(i, (Double) values[i]);
} else if (values[i].getClass().getSimpleName().equals("Boolean")) {
q.setBoolean(i, (Boolean) values[i]);
} else {
q.setEntity(i, values[i]);
}
}
ret = q.list();
tx.commit();
result = makeClass(ret);
HibernateUtil.freeSession(sess);
freed = true;
} catch (HibernateException e) {
logger.error("Hibernate Exception occurred in executeQuery() Method", e);
e.printStackTrace();
if (!freed && sess != null) {
HibernateUtil.freeSession(sess);
}
throw new DatabaseException("Can not execute query.");
} catch (Exception e) {
logger.fatal("Exception occurred in executeQuery() Method", e);
System.out.println(e.getMessage());
throw new DatabaseException("Can not execute query.");
}
return result;
}
这是一个类生成器:
private List<T> makeClass(List<Object> input) {
List<T> ret = new ArrayList<T>();
int size = input.size();
for (int i = 0; i < size; i++) {
T curr = (T) input.get(i);
ret.add(curr);
}
return ret;
}
它是retun null。
return queryManager.executeQuery("from BranchBuildingEntity b where b.buildingAdr.blongitude = 51.6371154785156 AND b.buildingAdr.blatitude = 35.658412064282");
or
return queryManager.executeQuery("from BranchBuildingEntity b where b.buildingAdr.blongitude = ? AND b.buildingAdr.blatitude = ?", longit, latid);//longit and latid both are double
return queryManager.executeQuery("from BranchBuildingEntity b where b.buildingAdr.blongitude = 0.0 AND b.buildingAdr.blatitude = 0.0");
有人知道我的问题在哪里吗?
