public abstract class PipelineStage extends Object implements Params
Estimator
or a Transformer
.Constructor and Description |
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PipelineStage() |
Modifier and Type | Method and Description |
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abstract PipelineStage |
copy(ParamMap extra)
Creates a copy of this instance with the same UID and some extra params.
|
abstract StructType |
transformSchema(StructType schema)
:: DeveloperApi ::
|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
clear, copyValues, defaultCopy, defaultParamMap, explainParam, explainParams, extractParamMap, extractParamMap, get, getDefault, getOrDefault, getParam, hasDefault, hasParam, isDefined, isSet, paramMap, params, set, set, set, setDefault, setDefault, shouldOwn, validateParams
toString, uid
public abstract StructType transformSchema(StructType schema)
Check transform validity and derive the output schema from the input schema.
Typical implementation should first conduct verification on schema change and parameter validity, including complex parameter interaction checks.
schema
- (undocumented)public abstract PipelineStage copy(ParamMap extra)
Params
defaultCopy()
.