QdbStringCompareAndSwap Method

Atomically compares and replaces the content when it matches.

Namespace: Quasardb
Assembly: Quasardb (in Quasardb.dll) Version: 3.15.0.0 (3.15.0.0)

Syntax

public string CompareAndSwap(
	string content,
	string comparand,
	DateTime? expiryTime = null
)

Public Function CompareAndSwap ( 
	content As String,
	comparand As String,
	Optional expiryTime As DateTime? = Nothing
) As String

content: Type: SystemString
The new content to put in the string.
comparand: Type: SystemString
The content to be compared to.
expiryTime (Optional): Type: SystemNullableDateTime
The expiry time to set if the string's content is replaced.

Type: String
The previous content of the string if it didn't match; null if it matched.

Exceptions

Exception	Condition
QdbAliasNotFoundException	The string is not present in the database.
QdbIncompatibleTypeException	The database entry is not a string.

QdbStringAddLanguageSpecificTextSet("LSTCEB841A9_0?cpp=::|nu=.");CompareAndSwap Method