Uses of Class
datafu.pig.util.ContextualEvalFunc

Packages that use ContextualEvalFunc

datafu.pig.bags	A collection of general purpose UDFs for operating on bags.
datafu.pig.util	Other useful utilities.

Uses of ContextualEvalFunc in datafu.pig.bags

Subclasses of ContextualEvalFunc in datafu.pig.bags

class	BagGroup Performs an in-memory group operation on a bag.
class	BagLeftOuterJoin Performs an in-memory left outer join across multiple bags.
class	EmptyBagToNullFields For an empty bag, inserts a tuple having null values for all fields; otherwise, the input bag is returned unchanged.

Uses of ContextualEvalFunc in datafu.pig.util

Subclasses of ContextualEvalFunc in datafu.pig.util

class	AliasableEvalFunc<T> Makes implementing and using UDFs easier by enabling named parameters.
class	Coalesce Returns the first non-null value from a tuple, just like COALESCE in SQL.
class	TransposeTupleToBag Performs a transpose on a tuple, resulting in a bag of key, value fields where the key is the column name and the value is the value of that column in the tuple.