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  
 



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