public class REGEX_EXTRACT_ALL extends EvalFunc<Tuple>
String RegexExtractAll(String expression, String regex)
.expression
-source string
.regex
-regular expression
.A tuple of matched strings
.Matcher.matches()
instead of
Matcher.find()
(default useMatches=true).DEFINE GREEDY_EXTRACT REGEX_EXTRACT(false);
EvalFunc.SchemaType
log, pigLogger, reporter, returnType
Constructor and Description |
---|
REGEX_EXTRACT_ALL() |
REGEX_EXTRACT_ALL(boolean useMatches) |
Modifier and Type | Method and Description |
---|---|
Tuple |
exec(Tuple input)
This callback method must be implemented by all subclasses.
|
java.util.List<FuncSpec> |
getArgToFuncMapping()
Allow a UDF to specify type specific implementations of itself.
|
Schema |
outputSchema(Schema input)
Report the schema of the output of this UDF.
|
finish, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, isAsynchronous, progress, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn
public REGEX_EXTRACT_ALL()
public REGEX_EXTRACT_ALL(boolean useMatches)
public Tuple exec(Tuple input) throws java.io.IOException
EvalFunc
public Schema outputSchema(Schema input)
EvalFunc
The default implementation interprets the OutputSchema
annotation,
if one is present. Otherwise, it returns null
(no known output schema).
outputSchema
in class EvalFunc<Tuple>
input
- Schema of the inputpublic java.util.List<FuncSpec> getArgToFuncMapping() throws FrontendException
EvalFunc
getArgToFuncMapping
in class EvalFunc<Tuple>
FrontendException
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