程序包 org.hibernate.type

类 AbstractType

    • 字段详细资料

      • LEGACY_DICTATED_SIZE

        protected static final Size LEGACY_DICTATED_SIZE

      • LEGACY_DEFAULT_SIZE

        protected static final Size LEGACY_DEFAULT_SIZE

    • 构造器详细资料

      • AbstractType

        public AbstractType()

    • 方法详细资料

      • isAssociationType

        public boolean isAssociationType()
        从接口复制的说明: Type
        Return true if the implementation is castable to AssociationType. This does not necessarily imply that the type actually represents an association. Essentially a polymorphic version of (type instanceof AssociationType.class)
        指定者:
        isAssociationType 在接口中 Type
        返回:
        True if this type is also an AssociationType implementor; false otherwise.

      • isComponentType

        public boolean isComponentType()
        从接口复制的说明: Type
        Return true if the implementation is castable to CompositeType. Essentially a polymorphic version of (type instanceof CompositeType.class). A component type may own collections or associations and hence must provide certain extra functionality.
        指定者:
        isComponentType 在接口中 Type
        返回:
        True if this type is also a CompositeType implementor; false otherwise.

      • isEntityType

        public boolean isEntityType()
        从接口复制的说明: Type
        Return true if the implementation is castable to EntityType. Essentially a polymorphic version of (type instanceof EntityType.class).

        An EntityType is additionally an AssociationType; so if this method returns true, Type.isAssociationType() should also return true.

        指定者:
        isEntityType 在接口中 Type
        返回:
        True if this type is also an EntityType implementor; false otherwise.

      • compare

        public int compare​(Object x,
                   Object y)
        从接口复制的说明: Type
        Perform a Comparator style comparison between values
        指定者:
        compare 在接口中 Type
        参数:
        x - The first value
        y - The second value
        返回:
        The comparison result. See Comparator.compare(T, T) for a discussion.

      • disassemble

        public Serializable disassemble​(Object value,
                                SharedSessionContractImplementor session,
                                Object owner)
                         throws HibernateException
        从接口复制的说明: Type
        Return a disassembled representation of the object. This is the value Hibernate will use in second level caching, so care should be taken to break values down to their simplest forms; for entities especially, this means breaking them down into their constituent parts.
        指定者:
        disassemble 在接口中 Type
        参数:
        value - the value to cache
        session - the originating session
        owner - optional parent entity object (needed for collections)
        返回:
        the disassembled, deep cloned state
        抛出:
        HibernateException - An error from Hibernate

      • isDirty

        public boolean isDirty​(Object old,
                       Object current,
                       SharedSessionContractImplementor session)
                throws HibernateException
        从接口复制的说明: Type
        Should the parent be considered dirty, given both the old and current value?
        指定者:
        isDirty 在接口中 Type
        参数:
        old - the old value
        current - the current value
        session - The session from which the request originated.
        返回:
        true if the field is dirty
        抛出:
        HibernateException - A problem occurred performing the checking

      • isAnyType

        public boolean isAnyType()
        从接口复制的说明: Type
        Return true if the implementation is castable to AnyType. Essentially a polymorphic version of (type instanceof AnyType.class).

        An AnyType is additionally an AssociationType; so if this method returns true, Type.isAssociationType() should also return true.

        指定者:
        isAnyType 在接口中 Type
        返回:
        True if this type is also an AnyType implementor; false otherwise.

      • isSame

        public boolean isSame​(Object x,
                      Object y)
               throws HibernateException
        从接口复制的说明: Type
        Compare two instances of the class mapped by this type for persistence "equality" (equality of persistent state) taking a shortcut for entity references.

        For most types this should equate to an equals check on the values. For associations the implication is a bit different. For most types it is conceivable to simply delegate to Type.isEqual(java.lang.Object, java.lang.Object)

        指定者:
        isSame 在接口中 Type
        参数:
        x - The first value
        y - The second value
        返回:
        True if there are considered the same (see discussion above).
        抛出:
        HibernateException - A problem occurred performing the comparison

      • isEqual

        public boolean isEqual​(Object x,
                       Object y)
        从接口复制的说明: Type
        Compare two instances of the class mapped by this type for persistence "equality" (equality of persistent state).

        This should always equate to some form of comparison of the value's internal state. As an example, for something like a date the comparison should be based on its internal "time" state based on the specific portion it is meant to represent (timestamp, date, time).

        指定者:
        isEqual 在接口中 Type
        参数:
        x - The first value
        y - The second value
        返回:
        True if there are considered equal (see discussion above).

      • getHashCode

        public int getHashCode​(Object x)
        从接口复制的说明: Type
        Get a hash code, consistent with persistence "equality". Again for most types the normal usage is to delegate to the value's hashCode.
        指定者:
        getHashCode 在接口中 Type
        参数:
        x - The value for which to retrieve a hash code
        返回:
        The hash code

      • isEqual

        public boolean isEqual​(Object x,
                       Object y,
                       SessionFactoryImplementor factory)
        从接口复制的说明: Type
        Compare two instances of the class mapped by this type for persistence "equality" (equality of persistent state).

        This should always equate to some form of comparison of the value's internal state. As an example, for something like a date the comparison should be based on its internal "time" state based on the specific portion it is meant to represent (timestamp, date, time).

        指定者:
        isEqual 在接口中 Type
        参数:
        x - The first value
        y - The second value
        factory - The session factory
        返回:
        True if there are considered equal (see discussion above).

      • getHashCode

        public int getHashCode​(Object x,
                       SessionFactoryImplementor factory)
        从接口复制的说明: Type
        Get a hash code, consistent with persistence "equality". Again for most types the normal usage is to delegate to the value's hashCode.
        指定者:
        getHashCode 在接口中 Type
        参数:
        x - The value for which to retrieve a hash code
        factory - The session factory
        返回:
        The hash code

      • getSemiResolvedType

        public Type getSemiResolvedType​(SessionFactoryImplementor factory)
        从接口复制的说明: Type
        As part of 2-phase loading, when we perform resolving what is the resolved type for this type? Generally speaking the type and its semi-resolved type will be the same. The main deviation from this is in the case of an entity where the type would be the entity type and semi-resolved type would be its identifier type
        指定者:
        getSemiResolvedType 在接口中 Type
        参数:
        factory - The session factory
        返回:
        The semi-resolved type

      • replace

        public Object replace​(Object original,
                      Object target,
                      SharedSessionContractImplementor session,
                      Object owner,
                      Map copyCache,
                      ForeignKeyDirection foreignKeyDirection)
               throws HibernateException
        从接口复制的说明: Type
        During merge, replace the existing (target) value in the entity we are merging to with a new (original) value from the detached entity we are merging. For immutable objects, or null values, it is safe to simply return the first parameter. For mutable objects, it is safe to return a copy of the first parameter. For objects with component values, it might make sense to recursively replace component values.
        指定者:
        replace 在接口中 Type
        参数:
        original - the value from the detached entity being merged
        target - the value in the managed entity
        session - The originating session
        owner - The owner of the value
        copyCache - The cache of already copied/replaced values
        foreignKeyDirection - For associations, which direction does the foreign key point?
        返回:
        the value to be merged
        抛出:
        HibernateException - An error from Hibernate

      • beforeAssemble

        public void beforeAssemble​(Serializable cached,
                           SharedSessionContractImplementor session)
        从接口复制的说明: Type
        Called before assembling a query result set from the query cache, to allow batch fetching of entities missing from the second-level cache.
        指定者:
        beforeAssemble 在接口中 Type
        参数:
        cached - The key
        session - The originating session