# class<class ???????name="ClassName" ?????????????????????????????(1) ???????table="tableName" ????????????????????????????(2) ???????discriminator-value="discriminator_value" ????(3) ???????mutable="true|false" ?????????????????????????(4) ???????schema="owner" ???????????????????????????????(5) ???????proxy="ProxyInterface" ???????????????????????(6) ???????dynamic-update="true|false" ??????????????????(7) ???????dynamic-insert="true|false" ??????????????????(8) ???????select-before-update="true|false" ????????????(9) ???????polymorphism="implicit|explicit" ?????????????(10) ???????where="arbitrary sql where condition" ????????(11) ???????persister="PersisterClass" ???????????????????(12) ???????batch-size="N" ???????????????????????????????(13) ???????optimistic-lock="none|version|dirty|all" ?????(14) ???????lazy="true|false" ????????????????????????????(15) ???????abstract="true|false" ????????????????????????(16)/>(1) name: The fully qualified .NET class name of the persistent class (or interface), including its assembly name.(2) table(optional - defaults to the unqualified class name): The name of its database table.(3) discriminator-value (optional - defaults to the class name): A value that distinguishes individual subclasses, used for polymorphic behaviour. Acceptable values include null and not null.(4) mutable (optional, defaults to true): Specifies that instances of the class are (not) mutable.(5) schema (optional): Override the schema name specified by the root <hibernate-mapping> element.(6) proxy (optional): Specifies an interface to use for lazy initializing proxies. You may specify the name of the class itself.(7) dynamic-update (optional, defaults to false): Specifies that UPDATE SQL should be generated at runtime and contain only those columns whose values have changed.(8) dynamic-insert (optional, defaults to false): Specifies that INSERT SQL should be generated at runtime and contain only the columns whose values are not null.(9) select-before-update (optional, defaults to false): Specifies that NHibernate should never perform an SQL UPDATE unless it is certain that an object is actually modified. In certain cases (actually, only when a transient object has been associated with a new session using update()), this means that NHibernate will perform an extra SQL SELECT to determine if an UPDATE is actually required.(10) ???polymorphism (optional, defaults to implicit): Determines whether implicit or explicit query polymorphism is used.(11) ???where (optional) specify an arbitrary SQL WHERE condition to be used when retrieving objects of this class(12) ???persister (optional): Specifies a custom IClassPersister.(13) ???batch-size (optional, defaults to 1) specify a "batch size" for fetching instances of this class by identifier.(14) ???optimistic-lock (optional, defaults to version): Determines the optimistic locking strategy.(15) ???lazy (optional): Lazy fetching may be completely disabled by setting lazy="false".(16) ???abstract (optional): Used to mark abstract superclasses in <union-subclass> hierarchies.# id<id ???????name="PropertyName" ?????????????????????(1) ???????type="typename" ?????????????????????????(2) ???????column="column_name" ????????????????????(3) ???????unsaved-value="any|none|null|id_value" ??(4) ???????access="field|property|nosetter|ClassName(5)"> ???????<generator class="generatorClass"/> ???????(1) name (optional): The name of the identifier property.(2) type (optional): A name that indicates the NHibernate type.(3) column (optional - defaults to the property name): The name of the primary key column.(4) unsaved-value (optional - defaults to a "sensible" value): An identifier property value that indicates that an instance is newly instantiated (unsaved), distinguishing it from transient instances that were saved or loaded in a previous session.(5) access (optional - defaults to property): The strategy NHibernate should use for accessing the property value.</id># property<property ???????name="propertyName" ????????????????(1) ???????column="column_name" ???????????????(2) ???????type="typename" ????????????????????(3) ???????update="true|false" ????????????????(4) ???????insert="true|false" ????????????????(4) ???????formula="arbitrary SQL expression" ?(5) ???????access="field|property|ClassName" ??(6) ???????optimistic-lock="true|false" ???????(7) ???????generated="never|insert|always" ????(8) ???????lazy="true|false" ??????????????????(9)/>(1) name: the name of the property of your class.(2) column (optional - defaults to the property name): the name of the mapped database table column.(3) type (optional): a name that indicates the NHibernate type.(4) update, insert (optional - defaults to true) : specifies that the mapped columns should be included in SQL UPDATE and/or INSERT statements. Setting both to false allows a pure "derived" property whose value is initialized from some other property that maps to the same column(s) or by a trigger or other application.(5) formula (optional): an SQL expression that defines the value for a computed property. Computed properties do not have a column mapping of their own.(6) access (optional - defaults to property): The strategy NHibernate should use for accessing the property value.(7) optimistic-lock (optional - defaults to true): Specifies that updates to this property do or do not require acquisition of the optimistic lock. In other words, determines if a version increment should occur when this property is dirty.(8) generated (optional - defaults to never): Specifies that this property value is actually generated by the database. See the discussion of Section 5.5, “Generated Properties”.(9) lazy (optional - defaults to false): Specifies that this property is lazy. A lazy property is not loaded when the object is initially loaded, unless the fetch mode has been overridden in a specific query. Values for lazy properties are loaded when any lazy property of the object is accessed.NHibernate *.hbm.xml 文档
原文地址：https://www.cnblogs.com/baily/p/9314438.html