Uses of Package
org.apache.pig.newplan.logical.expression

Packages that use org.apache.pig.newplan.logical.expression

Package	Description
org.apache.pig.newplan
org.apache.pig.newplan.logical.expression
org.apache.pig.newplan.logical.optimizer
org.apache.pig.newplan.logical.relational
org.apache.pig.newplan.logical.rules
org.apache.pig.newplan.logical.visitor
org.apache.pig.parser

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.newplan

Class and Description
BinaryExpression Superclass for all binary expressions
LogicalExpression Logical representation of expression operators.
LogicalExpressionPlan A plan containing LogicalExpressionOperators.
ProjectExpression Projection of columns in an expression.
UnaryExpression Superclass for all unary expressions

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.newplan.logical.expression

Class and Description
AddExpression Add Operator
AndExpression Boolean and expression.
BinaryExpression Superclass for all binary expressions
BinCondExpression
CastExpression
ColumnExpression Super class for all column expressions, including projection, constants, and deferences.
ConstantExpression A constant
DereferenceExpression get one or elements out of a tuple or a bag in case of Tuple( a#2:int, b#3:bag{ b_a#4:int, b_b#5:float }, c#6:int ) # 1 (the number after # represents the uid) Dereference ( 0 ) --> a:int - dereference of single column in a tuple gives the field Dereference ( 0,2 ) --> Tuple(a#2:int, c#6:int) #7 - dereference of more than one column gives a tuple Dereference ( 1 ) --> Dereference ( 1 ) --> b:bag{b_b#5:float}#8 - dereference of a bag gives a bag
DivideExpression Divide Operator
EqualExpression Equality test expression.
GreaterThanEqualExpression
GreaterThanExpression
IsNullExpression
LessThanEqualExpression
LessThanExpression
LogicalExpression Logical representation of expression operators.
LogicalExpressionPlan A plan containing LogicalExpressionOperators.
LogicalExpressionVisitor A visitor for expression plans.
MapLookupExpression
ModExpression Mod Operator
MultiplyExpression Multiply Operator
NegativeExpression
NotEqualExpression NotEquality test expression.
NotExpression
OrExpression Boolean OR Expression
ProjectExpression Projection of columns in an expression.
RegexExpression Regex Operator
ScalarExpression
SubtractExpression Subtract Operator
UnaryExpression Superclass for all unary expressions
UserFuncExpression

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.newplan.logical.optimizer

Class and Description
LogicalExpressionPlan A plan containing LogicalExpressionOperators.
LogicalExpressionVisitor A visitor for expression plans.

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.newplan.logical.relational

Class and Description
LogicalExpressionPlan A plan containing LogicalExpressionOperators.
ProjectExpression Projection of columns in an expression.

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.newplan.logical.rules

Class and Description
AllSameExpressionVisitor
LogicalExpression Logical representation of expression operators.
LogicalExpressionPlan A plan containing LogicalExpressionOperators.
LogicalExpressionVisitor A visitor for expression plans.

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.newplan.logical.visitor

Class and Description
AddExpression Add Operator
AndExpression Boolean and expression.
BinCondExpression
CastExpression
DereferenceExpression get one or elements out of a tuple or a bag in case of Tuple( a#2:int, b#3:bag{ b_a#4:int, b_b#5:float }, c#6:int ) # 1 (the number after # represents the uid) Dereference ( 0 ) --> a:int - dereference of single column in a tuple gives the field Dereference ( 0,2 ) --> Tuple(a#2:int, c#6:int) #7 - dereference of more than one column gives a tuple Dereference ( 1 ) --> Dereference ( 1 ) --> b:bag{b_b#5:float}#8 - dereference of a bag gives a bag
DivideExpression Divide Operator
EqualExpression Equality test expression.
GreaterThanEqualExpression
GreaterThanExpression
LessThanEqualExpression
LessThanExpression
LogicalExpressionPlan A plan containing LogicalExpressionOperators.
LogicalExpressionVisitor A visitor for expression plans.
MapLookupExpression
ModExpression Mod Operator
MultiplyExpression Multiply Operator
NegativeExpression
NotEqualExpression NotEquality test expression.
NotExpression
OrExpression Boolean OR Expression
ProjectExpression Projection of columns in an expression.
RegexExpression Regex Operator
SubtractExpression Subtract Operator
UserFuncExpression

Classes in org.apache.pig.newplan.logical.expression used by org.apache.pig.parser

Class and Description
LogicalExpression Logical representation of expression operators.
ScalarExpression