org.apache.pig
Class Expression

java.lang.Object
  org.apache.pig.Expression

Direct Known Subclasses:

Expression.BinaryExpression, Expression.Column, Expression.Const

@InterfaceAudience.Public
@InterfaceStability.Evolving
public abstract class Expression
extends Object

A class to communicate Filter expressions to LoadFuncs.

Since:

Pig 0.7

Nested Class Summary

static class	Expression.BinaryExpression
static class	Expression.Column
static class	Expression.Const
static class	Expression.OpType

Field Summary

protected Expression.OpType

opType

Constructor Summary

Expression()

Method Summary

Expression.OpType

getOpType()

Methods inherited from class java.lang.Object

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

Field Detail

opType

protected Expression.OpType opType

Constructor Detail

Expression

public Expression()

Method Detail

getOpType

public Expression.OpType getOpType()

Returns:

the opType