org.apache.pig.piggybank.evaluation.math

Class Base

java.lang.Object

org.apache.pig.EvalFunc<Double>

org.apache.pig.piggybank.evaluation.math.Base

Direct Known Subclasses:

DoubleBase, DoubleDoubleBase

Deprecated.

Use Base

@Deprecated
public abstract class Base
extends EvalFunc<Double>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.pig.EvalFunc

EvalFunc.SchemaType

Field Summary

Fields inherited from class org.apache.pig.EvalFunc

log, pigLogger, reporter, returnType

Constructor Summary

Constructors

Constructor and Description
Base() Deprecated.

Method Summary

Methods

Modifier and Type	Method and Description
Schema	outputSchema(Schema input) Deprecated. Report the schema of the output of this UDF.

Methods inherited from class org.apache.pig.EvalFunc

allowCompileTimeCalculation, exec, finish, getArgToFuncMapping, getCacheFiles, getInputSchema, getLogger, getPigLogger, getReporter, getReturnType, getSchemaName, getSchemaType, getShipFiles, isAsynchronous, needEndOfAllInputProcessing, progress, setEndOfAllInput, setInputSchema, setPigLogger, setReporter, setUDFContextSignature, warn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Base

public Base()

Deprecated.

Method Detail

outputSchema

public Schema outputSchema(Schema input)

Deprecated.

Description copied from class: EvalFunc

Report the schema of the output of this UDF. Pig will make use of this in error checking, optimization, and planning. The schema of input data to this UDF is provided.

The default implementation interprets the OutputSchema annotation, if one is present. Otherwise, it returns null (no known output schema).

Overrides:

outputSchema in class EvalFunc<Double>

Parameters:

input - Schema of the input

Returns:

Schema of the output