ObjectTransaction Class

Represents user mode object transaction

Inheritance Hierarchy

SystemObject
Aloe.SystemFrameworks.DomainObjectTransaction
Aloe.EnterpriseOne.Model.CoreEnterpriseOneTransaction

Namespace: Aloe.SystemFrameworks.Domain
Assembly: Aloe.SystemFrameworks.Domain (in Aloe.SystemFrameworks.Domain.dll) Version: 20.1.3.5

Syntax

C++

Copy

public class ObjectTransaction : IDisposable

Public Class ObjectTransaction
	Implements IDisposable

public ref class ObjectTransaction : IDisposable

type ObjectTransaction =  
    class
        interface IDisposable
    end

The ObjectTransaction type exposes the following members.

Constructors

	Name	Description
	ObjectTransaction	Initializes a new transaction, whose primary buffer will be bound to the specified buffer.

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Properties

	Name	Description
	ApplicationName	Gets or sets the name of the application that created the transaction.
	DataSource	Gets the data source.
	ExtendedProperties	Extended properties contain temporary (not persisted) values in the object instance.
	ExternalDataMode	Gets a value indicating whether the transaction runs in external data mode. In this mode, the primary data buffer is externally linked.
	PrimaryBuffer	Gets the buffer, which allows low-level access to all data tables and columns
	RepositorySource	Gets a reference to the primary repository source for the transaction
	TransactionName	Gets the transaction name. It is used only for identification purposes.
	UserName	Gets or sets the name of the user that created the transaction.

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Methods

	Name	Description
	Clone	Creates a new ObjectTransaction that is a shallow copy of the current instance. The primary buffer is not copied.
	Commit	Update the data source with the current changes.
	Dispose	Performs application-defined tasks associated with freeing, releasing, or resetting unmanaged resources.
	ExecuteRulesForAggregateCommit	Executes the rules for aggregate commit event.
	ExecuteRulesForCommit	Executes the rules for the given validation event for all objects in the transaction. The validation violations are populated into the event object.
	FindFirstOrDefault(Repository, ExpressionFuncDomainObject, Boolean)	Searches through both committed and uncommitted objects for a single object, matching the predicate. Returns null if not found. This variant
	FindFirstOrDefaultTObject(ExpressionFuncTObject, Boolean, FuncTObject, Boolean)	Searches through both committed and uncommitted objects for a single object, matching the predicate. Returns null if not found.
	FindFirstOrDefaultTObject(Repository, ExpressionFuncTObject, Boolean, FuncTObject, Boolean)	Searches through both committed and uncommitted objects for a single object, matching the predicate. Returns null if not found. This overload could be used if the search requires type casting to intermediate object type.
	GetTObject	Searches both the uncommitted and committed objects for the object with the specified type and object id.
	GetGhostTObject	Gets the ghost object of the specified entity type.
	GetLocalTObject	Searches for locally buffered object with the specified id.
	GetLocalObject	Searches for locally buffered object with the specified id.
	GetModifiedEntityObjects	Gets the modified entity objects.
	GetOrCreateExtendedPropertyTProperty	Gets the or creates an object, which is cached for the duration of the transaction.
	GetRegistered	Gets alive object from the object registration list. Returns null if the object is not in the registration list.
	LocalQuery(Repository, Boolean)	Allows querying of the local, uncommitted objects in the transaction. This is the untyped overload of the method.
	LocalQueryTObject(Boolean)	Allows querying of the local, uncommitted objects in the transaction.
	NewTObject	Creates a new object of the specified type.
	QueryTObject	Allows querying of the committed objects in the data source.
	Rollback	Rollbacks all changes made to the transaction since the last Commit
	SearchTObject	Searches for objects, matching the predicate in both the committed objects in the data source and the uncommitted objects in the transaction.
	ToString	Returns a String that represents this instance. (Overrides ObjectToString.)

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Fields

	Name	Description
	DataAttributeChanged	Fired when data attribute has changed
	DataAttributeChanging	Fired when data attribute is changing
	ObjectDeleted	Fired when object is deleted.
	WarningIssued	Fired when a warning is issued

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Extension Methods

	Name	Description
	FillMissingDefaults	Executes the late-default expression for each attribute, if the current value is null or equal to a constant default, for all modified entity objects in the transaction. (Defined by ObjectTransactionExtensions.)

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Remarks

The transaction buffers all data changes in memory and allows committing at any given moment. The transaction also allows off-line operation, storing changes until the server connection is back.

The transaction provides methods for accessing the repositories and the domain objects.

The isolation level is roughly similar to the Repeatable Read, but it does not use any locks.

Reference

Aloe.SystemFrameworks.Domain Namespace