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Timeline Class Reference

List of all members.

Public Methods
	Timeline (const Id &id)
	Constructor.
	~Timeline ()
	Destructor.
const Id	getId () const
	Get the id of the timeline.
set< SignalId >	getSignals () const
	Get signal Ids.
SignalId	createSignal (Id id, string xlinkHref, MimeClass mimeClass, MimeType mimeType, Encoding encoding, Unit unit, string track) throw (AGException)
void	deleteSignal (Signal *signal)
	Remove a signal from the timeline.
void	setFeature (FeatureName featureName, FeatureValue featureValue)
	Set the value of a feature in the metadata.
bool	existsFeature (FeatureName featureName)
	Test if a feature exists in the metadata.
void	deleteFeature (FeatureName featureName)
	Delete the specified feature in the metadata.
string	getFeature (FeatureName featureName)
	Get the value of the specified feature in the metadata.
set< string >	getFeatureNames ()
void	setFeatures (map< string, string > &features)
map< string, string >	getFeatures ()
void	unsetFeatures ()
list< string >	storeSQLs (AGSetId id)
	Create list of SQLs used to save the timeline to the DB server.
string	toString ()
	Dump the timeline in AIF format.

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Detailed Description

Timeline is a set of signals.

Version:

1.3 September 21, 2001

Author:

Xiaoyi Ma

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Member Function Documentation

SignalId Timeline::createSignal (  Id    id, string    xlinkHref, MimeClass    mimeClass, MimeType    mimeType, Encoding    encoding, Unit    unit, string    track )  throw (AGException)

Create a new signal and add it to the timeline. Parameters: id  might be TimelineId or SignalId. If id is a TimelineId, an SignalId will be assigned to new Signal. If id is a SignalId, it will try the given id first, if it's taken, assign a new SignalId. Returns: SignalId of the new signal. Exceptions: AGException  IF (the id given is invalid)

set<string> Timeline::getFeatureNames (    )

Get feature names in the metadata Returns: string set which contains all the feature names

map<string,string> Timeline::getFeatures (    )  [inline]

Get all the features in a hash table of feature-value pairs.

void Timeline::setFeatures (  map< string, string > &    features )  [inline]

Set multiple features in a hash table of feature-value pairs.

void Timeline::unsetFeatures (    )

Unset all features in the metadata Set all the features to empty string.

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