Class RenameFields.Inner<T>
- java.lang.Object
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- org.apache.beam.sdk.transforms.PTransform<PCollection<T>,PCollection<Row>>
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- org.apache.beam.sdk.schemas.transforms.RenameFields.Inner<T>
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- All Implemented Interfaces:
java.io.Serializable
,HasDisplayData
- Enclosing class:
- RenameFields
public static class RenameFields.Inner<T> extends PTransform<PCollection<T>,PCollection<Row>>
The class implementing the actual PTransform.- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class org.apache.beam.sdk.transforms.PTransform
name, resourceHints
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description PCollection<Row>
expand(PCollection<T> input)
Override this method to specify how thisPTransform
should be expanded on the givenInputT
.RenameFields.Inner<T>
rename(java.lang.String field, java.lang.String newName)
Rename a specific field.RenameFields.Inner<T>
rename(FieldAccessDescriptor field, java.lang.String newName)
Rename a specific field.-
Methods inherited from class org.apache.beam.sdk.transforms.PTransform
compose, compose, getAdditionalInputs, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setResourceHints, toString, validate, validate
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Method Detail
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rename
public RenameFields.Inner<T> rename(java.lang.String field, java.lang.String newName)
Rename a specific field.
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rename
public RenameFields.Inner<T> rename(FieldAccessDescriptor field, java.lang.String newName)
Rename a specific field.
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expand
public PCollection<Row> expand(PCollection<T> input)
Description copied from class:PTransform
Override this method to specify how thisPTransform
should be expanded on the givenInputT
.NOTE: This method should not be called directly. Instead apply the
PTransform
should be applied to theInputT
using theapply
method.Composite transforms, which are defined in terms of other transforms, should return the output of one of the composed transforms. Non-composite transforms, which do not apply any transforms internally, should return a new unbound output and register evaluators (via backend-specific registration methods).
- Specified by:
expand
in classPTransform<PCollection<T>,PCollection<Row>>
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