public static class Regex.ReplaceAll extends PTransform<PCollection<java.lang.String>,PCollection<java.lang.String>>
Regex.ReplaceAll<String>
takes a PCollection<String>
and returns a PCollection<String>
with all Strings that matched the Regex being replaced with the
replacement string.
This transform runs a Regex on the entire input line. If a portion of the line does not match the Regex, the line will be output without changes. If it does match a portion of the line, all portions matching the Regex will be replaced with the replacement String.
Example of use:
PCollection<String> words = ...;
PCollection<String> values =
words.apply(Regex.replaceAll("myregex", "myreplacement"));
annotations, displayData, name, resourceHints
Constructor and Description |
---|
ReplaceAll(java.util.regex.Pattern pattern,
java.lang.String replacement) |
Modifier and Type | Method and Description |
---|---|
PCollection<java.lang.String> |
expand(PCollection<java.lang.String> in)
Override this method to specify how this
PTransform should be expanded on the given
InputT . |
addAnnotation, compose, compose, getAdditionalInputs, getAnnotations, getDefaultOutputCoder, getDefaultOutputCoder, getDefaultOutputCoder, getKindString, getName, getResourceHints, populateDisplayData, setDisplayData, setResourceHints, toString, validate, validate
public ReplaceAll(java.util.regex.Pattern pattern, java.lang.String replacement)
public PCollection<java.lang.String> expand(PCollection<java.lang.String> in)
PTransform
PTransform
should be expanded on the given
InputT
.
NOTE: This method should not be called directly. Instead apply the PTransform
should
be applied to the InputT
using the apply
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).
expand
in class PTransform<PCollection<java.lang.String>,PCollection<java.lang.String>>