TypeVersion Class

Contains info about a version of a VelocityDbType. The info is used when reading/writing an object of the

Inheritance Hierarchy

SystemObject
VelocityDbOptimizedPersistable
VelocityDb.TypeInfoTypeVersion

Namespace: VelocityDb.TypeInfo
Assembly: VelocityDb (in VelocityDb.dll) Version: 11.1.0.0 (11.1)

Syntax

C++

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[SerializableAttribute]
public class TypeVersion : OptimizedPersistable, 
	IEquatable<TypeVersion>

<SerializableAttribute>
Public Class TypeVersion
	Inherits OptimizedPersistable
	Implements IEquatable(Of TypeVersion)

[SerializableAttribute]
public ref class TypeVersion : public OptimizedPersistable, 
	IEquatable<TypeVersion^>

[<SerializableAttribute>]
type TypeVersion =  
    class
        inherit OptimizedPersistable
        interface IEquatable<TypeVersion>
    end

The TypeVersion type exposes the following members.

Properties

	Name	Description
	AllowOtherTypesOnSamePage	Objects can be stored more efficiently if all object types on the page share the same type. By default mixed types are allowed. Override this to return false for types that should not share pages with other types. (Overrides OptimizedPersistableAllowOtherTypesOnSamePage.)
	AnyFieldIndex	Does managed type or its base classes include a field index ?
	AnyTypeIndex	Does managed type or its base classes include a type index ?
	AutoIncrement	Does managed type or its base classes include an auto increment field?
	BaseShape	Get the base TypeVersion or null if none exist
	Cache	By default, the an object cache is determined by a SessionBase constructor parameter but certain types of objects may be re opened more frequently than others, for such types override this to return a value. Caching objects this way can cause out of date object references to stay active due to lacking code to invalidate a cached object when referenced objects are replaced. We will add this automatic invalidation as soon as possible but for now use caution when caching objects. Caching objects that does not strongly reference other objects is OK to do. (Overrides OptimizedPersistableCache.)
	CountStart	Set where AutoIncrement counter should start
	DataMemberArray	Get an array of fields represented as DataMember. Does not include fields from base classes.
	FieldIndex	Does managed type include a field index ?
	IsFixedSize	A type is fixed size if it only has fixed size fields
	IsISerializable	true if ISerializable otherwise, false.
	IsString	Is this schema for type System.String ?
	IsValueType	Is managed type a ValueType ?
	Type	Get the .NET type of the schema class
	TypeIndex	Does managed type include a type index ?
	VelocityDbType	Get schema class object managing a particular .NET type.

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Methods

	Name	Description
	EncodeForCsv	Encode a persistent object as a string for csv export
	Equals	Indicates whether the current object is equal to another object of the same type.
	GetDataMemberList	Get a list of all DataMember of this type including base classes.
	LoadMembers	Loads member fields from persistent storage
	ObjectBytesFromStrings	Converts string representation of an object into VelocityDB object byte representation.
	PersistRefences	Persists references from an object
	ReadMe	(Overrides OptimizedPersistableReadMe(TypeVersion, Byte, Int32, SessionBase, Page, Boolean, Schema, Boolean, ListIOptimizedPersistable, Int32, Int32, Boolean).)
	SetCount
	ToString	(Overrides OptimizedPersistableToString.)
	TotalShapeNumberOfBytes	Get the total size of an object of the managed type (including base class fields)
	Unpersist	Removes an object from the persistent store and makes the object a transient object. It does not automatically make referenced objects unpersisted. Best way to do so is to override this virtual function in your own classes. (Overrides OptimizedPersistableUnpersist(SessionBase).)

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Extension Methods

	Name	Description
	ToStringDetails(SessionBase, Boolean)	Overloaded. Object details as a string (Defined by Utilities.)
	ToStringDetails(Schema, TypeVersion, Boolean)	Overloaded. Currently only used by Database Manager (Defined by Utilities.)

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Reference

VelocityDb.TypeInfo Namespace