isStreaming

Returns True if this DataFrame contains one or more sources that continuously return data as it arrives. A DataFrame that reads data from a streaming source must be executed as a StreamingQuery using the start method in DataStreamWriter. Methods that return a single answer, such as count or collect, will throw an AnalysisException when there is a streaming source present.

Returns

bool

Examples

df = spark.readStream.format("rate").load()
df.isStreaming
# True