flash.data.SQLTransactionLockType (Flex 3.4)

(AIR only)

Package	flash.data
Class	public class SQLTransactionLockType
Inheritance	SQLTransactionLockType Object

This class contains the constants that represent the possible values for the option parameter of the SQLConnection.begin() method.

See also

flash.data.SQLConnection.begin()

	Property	Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object

Public Methods

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	Method		Defined By
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object

	Constant	Defined By
		DEFERRED : String = "deferred" [static] Specifies the deferred locking transaction option.	SQLTransactionLockType
		EXCLUSIVE : String = "exclusive" [static] Specifies the exclusive locking transaction option.	SQLTransactionLockType
		IMMEDIATE : String = "immediate" [static] Specifies the immediate locking transaction option.	SQLTransactionLockType

Constant Detail

DEFERRED

Constant

public static const DEFERRED:String = "deferred"

Specifies the deferred locking transaction option. A deferred-lock transaction does not acquire a lock on the database until the database is first accessed. With a deferred transaction, a lock is not acquired until the first read or write operation.

See also

flash.data.SQLConnection.begin()

EXCLUSIVE

Constant

public static const EXCLUSIVE:String = "exclusive"

Specifies the exclusive locking transaction option. An exclusive-locked transaction acquires a lock on the database immediately. Other SQLStatement objects executing against the same database through a different SQLConnection (in the same AIR application or a different one) can't read data from or write data to the database.

See also

flash.data.SQLConnection.begin()

IMMEDIATE

Constant

public static const IMMEDIATE:String = "immediate"

Specifies the immediate locking transaction option. An immediate-locked transaction acquires a lock on the database immediately. SQLStatement objects executing against the same database through a different SQLConnection (in the same AIR application or a different one) can read data from the database but can't write data to it. However, for those other connections reading data from the database, the initial state of the data in the database is identical to the state of the database before the in-transaction SQLConnection instance's begin() method was called. Any uncommitted data changes made within the immediate-locked transaction are not available to the other connections.

See also

flash.data.SQLConnection.begin()

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