Package org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Interface Summary

ComparisonOperator

This is an interface for all comparison operators.

Class Summary

Add
BinaryComparisonOperator	This is a base class for all binary comparison operators.
BinaryExpressionOperator	A base class for all Binary expression operators.
ConstantExpression	This class implements a Constant of any type.
Divide
EqualToExpr
ExpressionOperator	A base class for all types of expressions.
GreaterThanExpr
GTOrEqualToExpr
LessThanExpr
LTOrEqualToExpr
Mod
Multiply
NotEqualToExpr
POAnd	Boolean and operator.
POBinCond
POCast	This is just a cast that converts DataByteArray into either String or Integer.
POIsNull
POMapLookUp
PONegative
PONot	Boolean not operator.
POOr	Boolean or operator.
POProject	Implements the overloaded form of the project operator.
PORegexp
PORelationToExprProject	Implements a specialized form of POProject which is used *ONLY* in the following case: This project is Project(*) introduced after a relational operator to supply a bag as output (as an expression).
POUserComparisonFunc
POUserFunc
Subtract
UnaryComparisonOperator	This is a base class for all unary comparison operators.
UnaryExpressionOperator