为什么jpa repository / Hibernate在控制台中编写相同的查询

时间：2016-06-29 14:02:55

标签： hibernate spring-data-jpa

为什么jpa存储库在eclipse控制台中编写相同的查询？ 它主题很多？

 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_,   technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_,       technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?
 Hibernate: select technicald0_.CTC_ID as CTC_ID1_7_0_, technicald0_.CTC_PANIER_CLASSIF as CTC_PANI9_7_0_, technicald0_.CTC_PANIER_STAT as CTC_PAN10_7_0_, technicald0_.VEH_COMMENTAIRE_TECH as VEH_COMM2_7_0_, technicald0_.CTC_NBR_DIFFUS as CTC_NBR_3_7_0_, technicald0_.VEH_GENERATION_TECH as VEH_GENE4_7_0_, technicald0_.CTC_DATE_MODIFICATION as CTC_DATE5_7_0_, technicald0_.CTC_MODIFICATEUR_ID as CTC_MOD11_7_0_, technicald0_.VEH_PHASE as VEH_PHAS6_7_0_, technicald0_.VEH_ETAT as VEH_ETAT7_7_0_, technicald0_.VEH_PONDERATION as VEH_POND8_7_0_ from SRA_COTA_TECHNIQUES technicald0_ where technicald0_.CTC_ID=?

我的查询是：

Cart findByRefVehicle(VehicleFinalized one);

我有Cart class＆amp;＆amp; VehicleFinalzed class＆amp;＆amp; TechnicalData类，推车与TechnicalData和VehicleFinalized与TechnicalData之间的关系

我的课程是：

import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.DiscriminatorValue;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.ForeignKey;
import javax.persistence.JoinColumn;
import javax.persistence.NamedAttributeNode;
import javax.persistence.NamedEntityGraph;
import javax.persistence.NamedEntityGraphs;
import javax.persistence.NamedSubgraph;
import javax.persistence.OneToOne;
import javax.persistence.Table;
import javax.persistence.UniqueConstraint;
import javax.transaction.NotSupportedException;

import com.normasys.entity.reference.Brand;
import com.normasys.entity.reference.Model;
import com.normasys.entity.technical.TechnicalData;


@SuppressWarnings("serial")
@Entity
@Table(name = "SRA_VEHICULE_FIN", uniqueConstraints = {       @UniqueConstraint(name = "UNIQUE_VEH_FIN_SRA", columnNames = { "VEH_CODE_SRA" }) })
@DiscriminatorValue(Environment.FINAL)
@NamedEntityGraphs({
@NamedEntityGraph(name = "VehicleFinalized.full", attributeNodes = {       @NamedAttributeNode("bodywork"), @NamedAttributeNode("supply"),
        @NamedAttributeNode("energy"), @NamedAttributeNode("price"),    @NamedAttributeNode("classification"), @NamedAttributeNode("identification"),
        @NamedAttributeNode("motorization"),     @NamedAttributeNode("suspensionAndBraking"), @NamedAttributeNode("dimensionAndWeight"),
        @NamedAttributeNode("securityElement"),     @NamedAttributeNode("drivingAssistance") },
        subclassSubgraphs = @NamedSubgraph(name = "VehicleFinalized.full.model", attributeNodes = { @NamedAttributeNode("brand") })),
        @NamedEntityGraph(name = "VehicleFinalized.properties_only", attributeNodes = { @NamedAttributeNode("bodywork"),       @NamedAttributeNode("supply"),
                @NamedAttributeNode("energy") }) })
public class VehicleFinalized extends AbstractVehicle {

// private static final Logger LOGGER = Logger.getLogger(VehiculeFinalized.class);

@JoinColumn(name = "VEH_CREATE_FROM", nullable = true, foreignKey =           @ForeignKey(name = "FK_VEH_FIN_CRF"))
@OneToOne(fetch = FetchType.LAZY, optional = true, orphanRemoval = true)
private Vehicle createdFrom;

@Column(name = "VEH_CODE_SRA", length = 7, nullable = false, unique = true)
private String codeSRA;

@Column(name = "VEH_NUM_ORDRE", nullable = false)
private Integer orderNumber;

@Column(name = "VEH_CODE_SEQUENCE")
private Integer sequenceCode;

@JoinColumn(name = "VEH_PRIX_COUT", nullable = false, foreignKey =  @ForeignKey(name = "FK_VEH_FIN_PCF"))
@OneToOne(fetch = FetchType.EAGER, optional = false, orphanRemoval = true, cascade = CascadeType.ALL)
protected PriceFinalized price = new PriceFinalized();

@JoinColumn(name = "VEH_CLASSIFICATION", nullable = false, foreignKey = @ForeignKey(name = "FK_VEH_FIN_CLS"))
@OneToOne(fetch = FetchType.EAGER, optional = false, orphanRemoval = true, cascade = CascadeType.ALL)
protected ClassificationFinalized classification = new ClassificationFinalized();

@JoinColumn(name = "VEH_DONNEE_TECHNIQUE", nullable = false, foreignKey = @ForeignKey(name = "FK_VEH_FIN_CTC"))
@OneToOne(fetch = FetchType.EAGER, optional = false, orphanRemoval = true, cascade = { CascadeType.PERSIST, CascadeType.DETACH, CascadeType.REFRESH,
        CascadeType.REMOVE })
protected TechnicalData technicalData = new TechnicalData();

public VehicleFinalized() {
}

public VehicleFinalized(final VehicleFinalized vehicle) {
    environment = Environment.FINAL;

    createdFrom = vehicle.getCreatedFrom();
    codeSRA = vehicle.getCodeSRA();
    orderNumber = vehicle.getOrderNumber();
    sequenceCode = vehicle.getSequenceCode();

    price = vehicle.getPrice().clone();
    classification = vehicle.getClassification().clone();
    technicalData = vehicle.getTechnicalData().clone();

    copyFields(vehicle);
}

public VehicleFinalized(final Vehicle vehicle, final Integer sequenceCode, final Integer orderNumber) throws NotSupportedException {
    createdFrom = vehicle;
    environment = Environment.FINAL;
    this.sequenceCode = sequenceCode;
    this.orderNumber = orderNumber;

    copyFields(vehicle);

    codeSRA = VehicleFinalizedUtil.generateCodeSRA(model.getBrand().getCode(), model.getCode(), sequenceCode);
    price = new PriceFinalized(vehicle.getPrice());
    classification = new ClassificationFinalized(vehicle.getClassification());

}




public VehicleFinalized(final Long id, final String codeSRA, final String model, final String brand) {
    super();
    setId(id);
    this.codeSRA = codeSRA;
    this.model = new Model();
    this.model.setTitle(model);
    this.model.setBrand(new Brand());
    this.model.getBrand().setTitle(brand);
}

@Override
public boolean calculateCompleted() {
    return uncompleted == 0 || getBrand() != null && model != null && bodywork != null && supply != null && energy != null && version != null
            && administrativePower != null
            && identification.calculateCompleted() && motorization.calculateCompleted() && suspensionAndBraking.calculateCompleted()
            && dimensionAndWeight.calculateCompleted() && securityElement.calculateCompleted() && price.calculateCompleted()
            && classification.calculateCompleted() && drivingAssistance.calculateCompleted();
}

public Vehicle getCreatedFrom() {
    return createdFrom;
}

public void setCreatedFrom(final Vehicle createdFrom) {
    this.createdFrom = createdFrom;
}

public String getCodeSRA() {
    return codeSRA;
}

public void setCodeSRA(final String codeSRA) {
    this.codeSRA = codeSRA;
}

public Integer getOrderNumber() {
    return orderNumber;
}

public void setOrderNumber(final Integer orderNumber) {
    this.orderNumber = orderNumber;
}

@Override
public PriceFinalized getPrice() {
    return price;
}

public void setPrice(final PriceFinalized price) {
    this.price = price;
}

@Override
public ClassificationFinalized getClassification() {
    return classification;
}

public void setClassification(final ClassificationFinalized classification) {
    this.classification = classification;
}

public TechnicalData getTechnicalData() {
    return technicalData;
}

public void setTechnicalData(final TechnicalData technicalData) {
    this.technicalData = technicalData;
}

public Integer getSequenceCode() {
    return sequenceCode;
}

public void setSequenceCode(final Integer sequenceCode) {
    this.sequenceCode = sequenceCode;
}

@Override
public void setCompletedFlag() {
    uncompleted = calculateCompleted() ? 0 : 1;

}

}

1 个答案:

答案 0 :(得分：0)

实际上，这取决于您如何配置获取策略。

如果您的属性配置为Eager，则每次加载对象时，您将加载关联的对象，然后向数据库发出请求。如果您不想加载关联对象，可以使用延迟策略。

最后，您还可以将hibernate缓存配置为不会多次播放相同的resquest。

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