WorldWind Kotlin/earth.worldwind.layer.source/GeoJsonBulkFeatureSource

GeoJsonBulkFeatureSource

class GeoJsonBulkFeatureSource(val text: String) : BulkFeatureSource

BulkFeatureSource over a static GeoJSON document. Parses text on each fetchAll call and emits one CachedFeatureRow per Feature in document order. Accepts the GeoJSON top-level shapes (FeatureCollection, Feature, bare Geometry, GeometryCollection); see parseGeoJsonAsFeatureRows for the flattening contract.

Compose with earth.worldwind.layer.cache.CachedBulkFeatureSource to persist rows to a GeoPackage feature store across launches: CachedBulkFeatureSource(GeoJsonBulkFeatureSource(text), store) — useful for .geojson files that should survive across launches without reparsing on every load.

Constructors

constructor(text: String)

Types

Companion

object Companion

Properties

text

val text: String

Functions

open fun close()

Release any resources held by the source (HTTP client, etc.). Idempotent default no-op.

fetchAll

open suspend override fun fetchAll(): Flow<CachedFeatureRow>

readBySector

open suspend fun readBySector(sector: Sector): Flow<CachedFeatureRow>

Read only the rows intersecting sector. The default ignores sector and returns fetchAll — a plain network source has no spatial index. A cache-backed source overrides it to serve viewport reads from a spatially-indexed store.