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Activity repositories are used by rows to store and lookup activities. Each row by default owns an IntervalTreeActivityRepository. This default repository can be replaced with a custom one, for example if your application requires a lazy loading strategy.

since

1.0

see

Row.setRepository(ActivityRepository)

Type parameters

  • A: Activity

    the type of activities stored in the repository

Hierarchy

Implemented by

Index

Methods

Methods

getActivities

  • getActivities(layer: Layer, startTime: number, endTine: number, temporalUnit: TemporalUnit, zoneId: ZoneId): A[]

  • Returns an array for iterating over all activities found for the given layer and time interval. This method has to return very fast as it gets called many times during rendering of the chart. A slow implementation will have a direct impact on scrolling / rendering performance.

    since

    1.0

    Parameters

    • layer: Layer

      the layer for which to return the activities

    • startTime: number

      the start time of the time interval for which to return the activities

    • endTine: number

      the end time of the time interval for which to return the activities

    • temporalUnit: TemporalUnit

      the temporal unit currently displayed in the dateline

    • zoneId: ZoneId

      the timezone currently displayed in the dateline

    Returns A[]

    the activities on the given layer and in the given time interval

getEarliestTimeUsed

  • getEarliestTimeUsed(): number

  • Returns the earliest time used by the activities stored in this repository / on this row. This method gets used for navigation (e.g. "scroll to earliest time used in the Gantt chart", "zoom out to show all activities").

    since

    1.0

    Returns number

    the earliest time used by the activities in this repository / row (null if no activities found)

getLatestTimeUsed

  • getLatestTimeUsed(): number

  • Returns the latest time used by the activities stored in this repository / on this row. This method gets used for navigation (e.g. "scroll to latest time used in the Gantt chart", "zoom out to show all activities").

    since

    1.0

    Returns number

    the latest time used by the activities in this repository / row (null if no activities found)