Interface ITopicSelector

An ITopicSelector is a value that identifies one or more topics.

Namespace: PushTechnology.ClientInterface.Client.Topics

Assembly: Diffusion.Client.dll

Syntax

public interface ITopicSelector

Remarks

Caution

Deprecated since 6.4. Topic selectors are no longer verified locally by the client library. Instead System.String expressions will be sent to (and verified by) the Diffusion server. This interface will be removed in a future release.

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Added in 5.0.

Properties

Expression

Returns the expression associated with this selector.

Declaration

string Expression { get; }

Property Value

Type	Description
System.String	The expression associated with this selector.

PathPrefix

Get the maximum topic path prefix from this selector pattern.

Attempts to extract the largest possible topic path that this selector defines, from the beginning of the selector. If this selector is a SPLIT_PATH_PATTERN or FULL_PATH_PATTERN, this will return a topic path up until the point that a regular expression pattern is first encountered.

For SELECTOR_SETs, this method will return the largest prefix that is common to all included selectors.

If no prefix can be extracted, this will return an empty string.

Declaration

string PathPrefix { get; }

Property Value

Type	Description
System.String	The largest possible topic path prefix.

Type

Returns the type of selector.

Declaration

TopicSelectorType Type { get; }

Property Value

Type	Description
TopicSelectorType	The type of selector.

Methods

Selects(String)

Evaluates this selector against a topic path.

Declaration

bool Selects(string topicPath)

Parameters

Type	Name	Description
System.String	topicPath	The topic path.

Returns

Type	Description
System.Boolean	true if this selector selects topicPath.