有人可以向我解释为什么将实体导入Neo4j需要6到10秒？
我正在使用Spring Data Neo4j和一个自定义存储库，它有Neo4jTemplate @Autowire - d。所以当我坚持一个实体时，我打电话给template.save(entity)。
我不得不说，虽然实体有点沉重。它有47个属性，即字段，其中3个标有@Indexed注释，其中10个是标有@RelatedTo的其他自定义实体。 @RelatedTo字段中有5个属于Set类型。这意味着实际上在导入这个重型实体时，另外10-15个实体也可能会被持久化并连接到它。
这是实际问题还是我能做些什么可以加快这个过程？
我环顾四周找到BatchInserter，但它没有处理索引。我找到了this示例实现，但如果没有其他选项，我会尝试它。
所以我想我想要了解的是，如果重型实体是持续缓慢的原因或其他原因。
我正在使用Neo4j 1.8并且没有触及配置文件。
感谢任何帮助。感谢。
修改
@Michael Hunger：
- 数据库中的数据量似乎没有效果
- 我没有使用AspectJ，所以我猜我正在使用简单的映射，对吧？你认为我会用AspectJ获得更好的表现吗？
- 我认为我没有跨越save方法的外部事务。我正在使用Wicket Web应用程序中的数据库。如果我将Neo4j的REST API与例如 Jersey REST客户端一起使用会更好吗？
- 如果自定义类型的类中存在属性，例如Area area，然后将为此area自动创建另一个节点以及主节点与area之间的连接，对吗？所以不需要template.createRelationshipBetween(entity1, entity2, type, properties, true)，对吗？要使用它，我需要做的是删除area属性，然后使用一些索引查找正确的area，然后手动建立连接。那是你的意思吗？
这就是我的保存方法的样子：
@Override
@Neo4jTransactional
public <T extends Identifiable> T save(T entity) {
T saved = template.save(entity);
Long savedId = saved.getId();
Node savedNode = getNode(savedId);
connectToContainerNode(savedNode, entity.getClass());
return saved;
}
以下是如何定义实体的示例（忽略@ExcelCell注释）。通常有一个由持久化实体扩展的抽象类。如果我做错了，请告诉我。
@NodeEntity
@SuppressWarnings("rawtypes")
public abstract class Building implements Identifiable {
@GraphId private Long id;
@ExcelCell( type={NewBuilding.class, RefurbishedBuilding.class, ReferenceBuilding.class}, cell=8, sheet=0, row=10)
@Fetch
private String concertoId;
@Fetch
@Indexed(indexName = "concertoUniqueId", indexType = IndexType.FULLTEXT)
private String concertoUniqueId;
@Fetch
@Indexed(indexName = "filename", indexType = IndexType.FULLTEXT)
private String filename;
@ExcelCells({
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=56),
@ExcelCell( type={ReferenceBuilding.class}, cell=7, sheet=1, row=40),
@ExcelCell( type={RefurbishedBuilding.class}, cell=8, sheet=1, row=75),
})
@Fetch
private Double floorAreaAccordingToLocalDefinition;
@Fetch
private Double formulaCAP;
@Fetch
private HashMap formulaEFecmdirectMatrix;
@Fetch
private HashMap formulaEFecmindirectMatrix;
@Fetch
private Double formulaEM;
@Fetch
private Double formulaEN;
@Fetch
private Double formulaIN;
@Fetch
private HashMap formulaINecaaMatrix;
@Fetch
private Double formulaInvestmentAdditionalCosts;
@Fetch
private Double formulaInvestmentTotalCosts;
@ExcelCells({
@ExcelCell( type={NewBuilding.class}, cell=6, sheet=1, row=13),
@ExcelCell( type={ReferenceBuilding.class}, cell=6, sheet=1, row=21),
@ExcelCell( type={RefurbishedBuilding.class}, cell=6, sheet=1, row=22),
})
@Fetch
@Indexed(indexName = "name", indexType = IndexType.FULLTEXT)
private String name;
@ExcelCells({
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=55),
@ExcelCell( type={ReferenceBuilding.class}, cell=7, sheet=1, row=39),
@ExcelCell( type={RefurbishedBuilding.class}, cell=8, sheet=1, row=74),
})
@Fetch
private Double rentableArea;
@ExcelCells({
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=54),
@ExcelCell( type={ReferenceBuilding.class}, cell=7, sheet=1, row=38),
@ExcelCell( type={RefurbishedBuilding.class}, cell=8, sheet=1, row=73),
})
@Fetch
private Double totalCooledNetRoomArea;
@ExcelCells({
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=52),
@ExcelCell( type={ReferenceBuilding.class}, cell=7, sheet=1, row=36),
@ExcelCell( type={RefurbishedBuilding.class}, cell=8, sheet=1, row=71),
})
@Fetch
private Double totalGrossFloorArea;
@ExcelCells({
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=53),
@ExcelCell( type={ReferenceBuilding.class}, cell=7, sheet=1, row=37),
@ExcelCell( type={RefurbishedBuilding.class}, cell=8, sheet=1, row=72),
})
@Fetch
private Double totalHeatedNetRoomArea;
@ExcelRef
@RelatedTo(type = "area", elementClass = Area.class, direction=Direction.BOTH)
private Area area;
@ExcelRef
@RelatedTo(type = "community", elementClass = Community.class, direction=Direction.BOTH)
private Community community;
@ExcelRef
@RelatedTo(type = "costsForTheEntireBuilding", elementClass = CostsForTheEntireBuilding.class, direction=Direction.BOTH)
private CostsForTheEntireBuilding costsForTheEntireBuilding;
@ExcelRef
@RelatedTo(type = "country", elementClass = Country.class, direction=Direction.BOTH)
private Country country;
@ExcelRef
@RelatedTo(type = "project", elementClass = Project.class, direction=Direction.BOTH)
private Project project;
@RelatedTo(type = "costsForSelectedMeasuresOfBuilding", elementClass = CostsForSelectedMeasuresOfBuilding.class, direction=Direction.BOTH)
private Set<CostsForSelectedMeasuresOfBuilding> costsForSelectedMeasuresOfBuilding = new LinkedHashSet<CostsForSelectedMeasuresOfBuilding>();
@RelatedTo(type = "groupCostsOfBuildings", elementClass = GroupCostsOfBuilding.class, direction=Direction.BOTH)
private Set<GroupCostsOfBuilding> groupCostsOfBuildings = new LinkedHashSet<GroupCostsOfBuilding>();
@RelatedTo(type = "individualCostsOfBuilding", elementClass = IndividualCostsOfBuilding.class, direction=Direction.BOTH)
private Set<IndividualCostsOfBuilding> individualCostsOfBuilding = new LinkedHashSet<IndividualCostsOfBuilding>();
public Building(){}
// getters and setters ommitted
}
这是NewBuilding类，它扩展了抽象的Building类，并且保存在DB中。
@NodeEntity
public class NewBuilding extends Building {
@ExcelCell( type={}, cell=6, sheet=1, row=38)
@Fetch
private String applicableThresholdUnit;
@ExcelCell( type={}, cell=7, sheet=1, row=38)
@Fetch
private String applicableThresholdValue;
@ExcelDropdown(sheet=1, ids={1111})
private AtticType atticType;
@ExcelCell( type={}, cell=7, sheet=1, row=67)
@Fetch
private Double averageEnergyTransmittanceOfWindowsAccordingToRequirements;
@ExcelCell( type={}, cell=8, sheet=1, row=67)
@Fetch
private Double averageEnergyTransmittanceOfWindowsRealised;
@ExcelCell( type={}, cell=7, sheet=1, row=64)
@Fetch
private Double averageHTCFacadeAccordingToRequirements;
@ExcelCell( type={}, cell=10, sheet=1, row=64)
@Fetch
private Double averageHTCFacadeBuildingEnvelopeSurfaces;
@ExcelCell( type={}, cell=8, sheet=1, row=64)
@Fetch
private Double averageHTCFacadeRealised;
@ExcelCell( type={}, cell=7, sheet=1, row=65)
@Fetch
private Double averageHTCGroundFloorAccordingToRequirements;
@ExcelCell( type={}, cell=10, sheet=1, row=65)
@Fetch
private Double averageHTCGroundFloorBuildingEnvelopeSurfaces;
@ExcelCell( type={}, cell=8, sheet=1, row=65)
@Fetch
private Double averageHTCGroundFloorRealised;
@ExcelCell( type={}, cell=7, sheet=1, row=63)
@Fetch
private Double averageHTCRoofAccordingToRequirements;
@ExcelCell( type={}, cell=10, sheet=1, row=63)
@Fetch
private Double averageHTCRoofBuildingEnvelopeSurfaces;
@ExcelCell( type={}, cell=8, sheet=1, row=63)
@Fetch
private Double averageHTCRoofRealised;
@ExcelCell( type={}, cell=7, sheet=1, row=66)
@Fetch
private Double averageHTCWindowsAccordingToRequirements;
@ExcelCell( type={}, cell=10, sheet=1, row=66)
@Fetch
private Double averageHTCWindowsFloorBuildingEnvelopeSurfaces;
@ExcelCell( type={}, cell=8, sheet=1, row=66)
@Fetch
private Double averageHTCWindowsFloorRealised;
@ExcelDropdown(sheet=1, ids={1110})
private BasementType basementType;
@ExcelDropdown(sheet=1, ids={1636}, type={NewBuilding.class, })
private BuildingIsOwnedOrRented buildingIsOwnedOrRented;
@ExcelDropdown(sheet=1, ids={1635}, type={NewBuilding.class, })
private BuildingIsPrivateOrPublic buildingIsPrivateOrPublic;
@ExcelDropdown(sheet=1, ids={1112})
private BuildingType buildingType;
@ExcelCell( type={}, cell=10, sheet=1, row=73)
@Fetch
private Double calculatedFinalEnergyDemandForCoolingElectricity;
@ExcelCell( type={}, cell=11, sheet=1, row=73)
@Fetch
private Double calculatedFinalEnergyDemandForCoolingNonElectricity;
@ExcelCell( type={}, cell=8, sheet=1, row=73)
@Fetch
private Double calculatedFinalEnergyDemandForDomesticHotWaterElectricity;
@ExcelCell( type={}, cell=9, sheet=1, row=73)
@Fetch
private Double calculatedFinalEnergyDemandForDomesticHotWaterNonElectricity;
@ExcelCell( type={}, cell=6, sheet=1, row=73)
@Fetch
private Double calculatedFinalEnergyDemandForHeatingElectricity;
@ExcelCell( type={}, cell=7, sheet=1, row=73)
@Fetch
private Double calculatedFinalEnergyDemandForHeatingNonElectricity;
@ExcelCell( type={}, cell=10, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForCoolingElectricity;
@ExcelCell( type={}, cell=11, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForCoolingNonElectricity;
@ExcelCell( type={}, cell=8, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForDomesticHotWaterElectricity;
@ExcelCell( type={}, cell=9, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForDomesticHotWaterNonElectricity;
@ExcelCell( type={}, cell=6, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForHeatingElectricity;
@ExcelCell( type={}, cell=7, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForHeatingNonElectricity;
@ExcelCell( type={}, cell=12, sheet=1, row=72)
@Fetch
private Double calculatedFinalEnergyDemandOfRefBuildingForLightingAndOther;
@ExcelCell( type={}, cell=6, sheet=1, row=20 ,textToIgnore="month/year")
@Fetch
private String completionDate;
@ExcelCheckboxYesNo(sheet=1, yesId=1222, noId=1223)
@Fetch
private boolean contractingAgreementExists;
@ExcelCell( type={}, cell=7, sheet=1, row=40 ,textToIgnore="Remarks")
@Fetch
private String contractingAgreementRemarks;
@ExcelDropdown(sheet=1, ids={751}, type={NewBuilding.class, })
private DemonstrationActivityScheme demonstrationActivityScheme;
@ExcelCell( type={NewBuilding.class}, cell=2, sheet=5, row=11)
@Fetch
private Date endDateOfMonitoringPeriod;
@ExcelCell( type={NewBuilding.class}, cell=10, sheet=1, row=73)
@Fetch
private Double energyDemandCoolingElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=10, sheet=1, row=72)
@Fetch
private Double energyDemandCoolingElectricityNational;
@ExcelCell( type={NewBuilding.class}, cell=11, sheet=1, row=73)
@Fetch
private Double energyDemandCoolingNonElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=11, sheet=1, row=72)
@Fetch
private Double energyDemandCoolingNonElectricityNational;
@ExcelCell( type={NewBuilding.class}, cell=8, sheet=1, row=73)
@Fetch
private Double energyDemandDomesticHotWaterElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=8, sheet=1, row=72)
@Fetch
private Double energyDemandDomesticHotWaterElectricityNational;
@ExcelCell( type={NewBuilding.class}, cell=9, sheet=1, row=73)
@Fetch
private Double energyDemandDomesticHotWaterNonElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=9, sheet=1, row=72)
@Fetch
private Double energyDemandDomesticHotWaterNonElectricityNational;
@ExcelCell( type={NewBuilding.class}, cell=6, sheet=1, row=73)
@Fetch
private Double energyDemandHeatingElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=6, sheet=1, row=72)
@Fetch
private Double energyDemandHeatingElectricityNational;
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=73)
@Fetch
private Double energyDemandHeatingNonElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=72)
@Fetch
private Double energyDemandHeatingNonElectricityNational;
@ExcelCell( type={NewBuilding.class}, cell=12, sheet=1, row=73)
@Fetch
private Double energyDemandLightingAndAllOtherElectricityConcerto;
@ExcelCell( type={NewBuilding.class}, cell=12, sheet=1, row=72)
@Fetch
private Double energyDemandLightingAndAllOtherElectricityNational;
@ExcelCheckboxYesNo(sheet=1, yesId=1188, noId=1189)
@Fetch
private boolean energyPerformanceCertificate;
@ExcelDropdown(sheet=1, ids={1103})
private EnergyPerformanceIndicatorRefersTo energyPerformanceIndicatorRefersTo;
@ExcelCell( type={}, cell=8, sheet=1, row=90 ,textToIgnore="specify capacity")
@Fetch
private String energyStorageCoolingCapacity;
@ExcelCell( type={}, cell=10, sheet=1, row=90 ,textToIgnore="Remarks")
@Fetch
private String energyStorageCoolingRemarks;
@ExcelDropdown(sheet=1, ids={2024})
private CapacityUnit energyStorageCoolingUnit;
@ExcelCheckbox(sheet=1, ids={1375})
@Fetch
private boolean energyStorageCoolingUsed;
@ExcelCell( type={}, cell=8, sheet=1, row=89 ,textToIgnore="specify capacity")
@Fetch
private String energyStorageDHWCapacity;
@ExcelCell( type={}, cell=10, sheet=1, row=89 ,textToIgnore="Remarks")
@Fetch
private String energyStorageDHWRemarks;
@ExcelDropdown(sheet=1, ids={2023})
private CapacityUnit energyStorageDHWUnit;
@ExcelCheckbox(sheet=1, ids={1371})
@Fetch
private boolean energyStorageDHWUsed;
@ExcelCell( type={}, cell=8, sheet=1, row=91 ,textToIgnore="specify capacity")
@Fetch
private String energyStorageElectricalCapacity;
@ExcelCell( type={}, cell=10, sheet=1, row=91 ,textToIgnore="Remarks")
@Fetch
private String energyStorageElectricalRemarks;
@ExcelDropdown(sheet=1, ids={2025})
private CapacityUnit energyStorageElectricalUnit;
@ExcelCheckbox(sheet=1, ids={1469})
@Fetch
private boolean energyStorageElectricalUsed;
@ExcelCell( type={}, cell=8, sheet=1, row=88 ,textToIgnore="specify capacity")
@Fetch
private String energyStorageSpaceHeatingCapacity;
@ExcelCell( type={}, cell=10, sheet=1, row=88 ,textToIgnore="Remarks")
@Fetch
private String energyStorageSpaceHeatingRemarks;
@ExcelDropdown(sheet=1, ids={2022})
private CapacityUnit energyStorageSpaceHeatingUnit;
@ExcelCheckbox(sheet=1, ids={1370})
@Fetch
private boolean energyStorageSpaceHeatingUsed;
@ExcelCell( type={}, cell=8, sheet=1, row=87 ,textToIgnore="specify capacity")
@Fetch
private String energyStorageThermalCapacity;
@ExcelCell( type={}, cell=10, sheet=1, row=87 ,textToIgnore="Remarks")
@Fetch
private String energyStorageThermalRemarks;
@ExcelDropdown(sheet=1, ids={2021})
private CapacityUnit energyStorageThermalUnit;
@ExcelCheckbox(sheet=1, ids={1367})
@Fetch
private boolean energyStorageThermalUsed;
@Fetch
private Double formulaPEFec;
@Fetch
private Double formulaPEN;
@ExcelCheckbox(sheet=1, ids={2041})
@Fetch
private boolean indicatorContainsCooling;
@ExcelCell( type={}, cell=6, sheet=1, row=35)
@Fetch
private String indicatorContainsCoolingUnit;
@ExcelCell( type={}, cell=7, sheet=1, row=35)
@Fetch
private String indicatorContainsCoolingValue;
@ExcelCheckbox(sheet=1, ids={2040})
@Fetch
private boolean indicatorContainsDomesticHotWaterProduction;
@ExcelCell( type={}, cell=6, sheet=1, row=34)
@Fetch
private String indicatorContainsDomesticHotWaterProductionUnit;
@ExcelCell( type={}, cell=7, sheet=1, row=34)
@Fetch
private String indicatorContainsDomesticHotWaterProductionValue;
@ExcelCheckbox(sheet=1, ids={2042})
@Fetch
private boolean indicatorContainsLighting;
@ExcelCell( type={}, cell=6, sheet=1, row=37)
@Fetch
private String indicatorContainsLightingUnit;
@ExcelCell( type={}, cell=7, sheet=1, row=37)
@Fetch
private String indicatorContainsLightingValue;
@ExcelCheckbox(sheet=1, ids={2039})
@Fetch
private boolean indicatorContainsSpaceHeating;
@ExcelCell( type={}, cell=6, sheet=1, row=33)
@Fetch
private String indicatorContainsSpaceHeatingUnit;
@ExcelCell( type={}, cell=7, sheet=1, row=33)
@Fetch
private String indicatorContainsSpaceHeatingValue;
@ExcelCheckbox(sheet=1, ids={2038})
@Fetch
private boolean indicatorContainsVentilation;
@ExcelCell( type={}, cell=6, sheet=1, row=36)
@Fetch
private String indicatorContainsVentilationUnit;
@ExcelCell( type={}, cell=7, sheet=1, row=36)
@Fetch
private String indicatorContainsVentilationValue;
@ExcelCell( type={NewBuilding.class}, cell=6, sheet=1, row=14)
@Fetch
private String location;
@ExcelDropdown(sheet=1, ids={1101})
private MainCharacteristicsOfCertificate1 mainCharacteristicsOfCertificate1;
@ExcelDropdown(sheet=1, ids={1102})
private MainCharacteristicsOfCertificate2 mainCharacteristicsOfCertificate2;
@ExcelCell( type={}, cell=6, sheet=1, row=21)
@Fetch
private String nameOfAppliedBuildingCode;
@ExcelCell( type={}, cell=6, sheet=1, row=27)
@Fetch
private String nameOfCertificate;
@ExcelCell( type={}, cell=6, sheet=1, row=24)
@Fetch
private String networks;
@ExcelCell( type={}, cell=6, sheet=1, row=48)
@Fetch
private String numberOfAppartmentsForResidentialBuilding;
@ExcelCell( type={NewBuilding.class}, cell=6, sheet=1, row=18)
@Fetch
private String numberOfBuildingsRepresentedByThisBuilding;
@ExcelCell( type={}, cell=6, sheet=1, row=49)
@Fetch
private String numberOfInhabitantsForResidentialBuilding;
@ExcelCell( type={}, cell=6, sheet=1, row=50)
@Fetch
private String numberOfOccupantsForNonResidentialBuilding;
@ExcelCell( type={}, cell=7, sheet=1, row=62)
@Fetch
private Double overallAverageHTCAccordingToRequirements;
@ExcelCell( type={}, cell=10, sheet=1, row=62)
@Fetch
private Double overallAverageHTCBuildingEnvelopeSurfaces;
@ExcelCell( type={}, cell=8, sheet=1, row=62)
@Fetch
private Double overallAverageHTCRealised;
@ExcelDropdown(sheet=1, ids={1109})
private PositionToNeighboringBuildings positionToNeighboringBuildings;
@ExcelCell( type={NewBuilding.class}, cell=6, sheet=1, row=23 ,textToIgnore="id of reference building")
@Fetch
private String referenceBuildingId;
@ExcelCell( type={}, cell=6, sheet=1, row=19 ,textToIgnore="month/year")
@Fetch
private String startDateOfConstructionWorks;
@ExcelCell( type={NewBuilding.class}, cell=2, sheet=5, row=10)
@Fetch
private Date startDateOfMonitoringPeriod;
@ExcelCheckboxYesNo(sheet=1, yesId=1443, noId=1444)
@Fetch
private boolean totalDomesticGasConsumptionIncludesGasForCooking;
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=58)
@Fetch
private Double totalGrossBuildingVolumeExternal;
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=60)
@Fetch
private Double totalNetCooledVolumeInternal;
@ExcelCell( type={NewBuilding.class}, cell=7, sheet=1, row=59)
@Fetch
private Double totalNetHeatedVolumeInternal;
@ExcelCell( type={}, cell=6, sheet=1, row=31)
@Fetch
private String unitOfIndicator;
@ExcelCell( type={}, cell=7, sheet=1, row=31)
@Fetch
private String valueOfIndicator;
@ExcelCell( type={}, cell=6, sheet=1, row=22 ,textToIgnore="year")
@Fetch
private String yearOfPublicationOfAppliedBuildingCode;
@ExcelRef
@RelatedTo(type = "characterisationOfAppliedBuildingFeatures", elementClass = CharacterisationOfAppliedBuildingFeatures.class, direction=Direction.BOTH)
private CharacterisationOfAppliedBuildingFeatures characterisationOfAppliedBuildingFeatures;
@ExcelCollection(type=BuildingEnergyService.class, start=0, end=5)
@RelatedTo(type = "appliedEnergyServices", elementClass = BuildingEnergyService.class, direction=Direction.BOTH)
private Set<BuildingEnergyService> appliedEnergyServices = new LinkedHashSet<BuildingEnergyService>();
@ExcelCollection(type=MonitoringYearTotal.class, start=0, end=5, orientation=Orientation.SHEET)
@RelatedTo(type = "monitoringYears", elementClass = MonitoringYearTotal.class, direction=Direction.BOTH)
private Set<MonitoringYearTotal> monitoringYears = new LinkedHashSet<MonitoringYearTotal>();
public NewBuilding(){}
// getters and setters ommitted
}
答案 0 :(得分：0)
save方法的外部交易？template.createRelationshipBetween(entity1, entity2, type, properties, true)？