Uses of Class
org.apache.pig.impl.plan.Operator

Packages that use Operator

Package	Description
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer
org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans
org.apache.pig.backend.hadoop.executionengine.physicalLayer	Implementation of physical operators that use hadoop as the execution engine and data storage.
org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators
org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans
org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators
org.apache.pig.backend.hadoop.executionengine.tez.plan
org.apache.pig.backend.hadoop.executionengine.tez.plan.operator
org.apache.pig.impl.plan

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer

Modifier and Type	Class and Description
class	MapReduceOper An operator model for a Map Reduce job.
class	NativeMapReduceOper

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.plans

Modifier and Type	Class and Description
static class	DotMRPrinter.InnerOperator Helper class to represent the relationship of map, reduce and combine phases in an MR operator.

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer

Modifier and Type	Class and Description
class	PhysicalOperator This is the base class for all operators.

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Modifier and Type	Class and Description
class	Add
class	BinaryComparisonOperator This is a base class for all binary comparison operators.
class	BinaryExpressionOperator A base class for all Binary expression operators.
class	ConstantExpression This class implements a Constant of any type.
class	Divide
class	EqualToExpr
class	ExpressionOperator A base class for all types of expressions.
class	GreaterThanExpr
class	GTOrEqualToExpr
class	LessThanExpr
class	LTOrEqualToExpr
class	Mod
class	Multiply
class	NotEqualToExpr
class	POAnd Boolean and operator.
class	POBinCond
class	POCast This is just a cast that converts DataByteArray into either String or Integer.
class	POIsNull
class	POMapLookUp
class	PONegative
class	PONot Boolean not operator.
class	POOr Boolean or operator.
class	POProject Implements the overloaded form of the project operator.
class	PORegexp
class	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).
class	POUserComparisonFunc
class	POUserFunc
class	Subtract
class	UnaryComparisonOperator This is a base class for all unary comparison operators.
class	UnaryExpressionOperator

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans

Classes in org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans with type parameters of type Operator

Modifier and Type	Class and Description
class	PlanPrinter<O extends Operator,P extends OperatorPlan<O>>

Method parameters in org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans with type arguments of type Operator

Modifier and Type	Method and Description
boolean	PatternPlan.match(OperatorPlan<? extends Operator<?>> inpPlan) Return true if the given plan has nodes that match the pattern represented by this class If a match is found, the PatterNodes in the plan will return non null node for getMatch().

Constructor parameters in org.apache.pig.backend.hadoop.executionengine.physicalLayer.plans with type arguments of type Operator

Constructor and Description
DotPOPrinter(PhysicalPlan plan, PrintStream ps, boolean isSubGraph, Set<Operator> subgraphs, Set<Operator> multiInputSubgraphs, Set<Operator> multiOutputSubgraphs)
DotPOPrinter(PhysicalPlan plan, PrintStream ps, boolean isSubGraph, Set<Operator> subgraphs, Set<Operator> multiInputSubgraphs, Set<Operator> multiOutputSubgraphs)
DotPOPrinter(PhysicalPlan plan, PrintStream ps, boolean isSubGraph, Set<Operator> subgraphs, Set<Operator> multiInputSubgraphs, Set<Operator> multiOutputSubgraphs)

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.physicalLayer.relationalOperators

Modifier and Type	Class and Description
class	POCollectedGroup The collected group operator is a special operator used when users give the hint 'using "collected"' in a group by clause.
class	POCounter This operator is part of the RANK operator implementation.
class	POCross Recover this class for nested cross operation.
class	PODemux The MapReduce Demultiplexer operator.
class	PODistinct Find the distinct set of tuples in a bag.
class	POFilter This is an implementation of the Filter operator.
class	POForEach
class	POFRJoin The operator models the join keys using the Local Rearrange operators which are configured with the plan specified by the user.
class	POGlobalRearrange Dummy operator to test MRCompiler.
class	POLimit
class	POLoad The load operator which is used in two ways: 1) As a local operator it can be used to load files 2) In the Map Reduce setting, it is used to create jobs from MapReduce operators which keep the loads and stores in the Map and Reduce Plans till the job is created
class	POLocalRearrange The local rearrange operator is a part of the co-group implementation.
class	POMergeCogroup
class	POMergeJoin This operator implements merge join algorithm to do map side joins.
class	PONative
class	POOptimizedForEach A specialized version of POForeach with the difference that in getNext(), it knows that "input" has already been attached by its input operator which SHOULD be POJoinPackage
class	POPackage The package operator that packages the globally rearranged tuples into output format as required by co-group.
class	POPartialAgg Do partial aggregation in map plan.
class	POPartitionRearrange The partition rearrange operator is a part of the skewed join implementation.
class	POPoissonSample
class	POPreCombinerLocalRearrange A specialized local rearrange operator which behaves like the regular local rearrange in the getNext() as far as getting its input and constructing the "key" out of the input.
class	PORank This operator is part of the RANK operator implementation.
class	POReservoirSample
class	POSkewedJoin The PhysicalOperator that represents a skewed join.
class	POSort This implementation is applicable for both the physical plan and for the local backend, as the conversion of physical to mapreduce would see the SORT operator and take necessary steps to convert it to a quantile and a sort job.
class	POSortedDistinct This operator is a variation of PODistinct, the input to this operator must be sorted already.
class	POSplit The MapReduce Split operator.
class	POStore The store operator which is used in two ways: 1) As a local operator it can be used to store files 2) In the Map Reduce setting, it is used to create jobs from MapReduce operators which keep the loads and stores in the Map and Reduce Plans till the job is created
class	POStream
class	POUnion The union operator that combines the two inputs into a single stream.

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.tez.plan

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.tez.plan

Modifier and Type	Class and Description
class	TezOperator An operator model for a Tez job.
class	TezPlanContainerNode

Uses of Operator in org.apache.pig.backend.hadoop.executionengine.tez.plan.operator

Subclasses of Operator in org.apache.pig.backend.hadoop.executionengine.tez.plan.operator

Modifier and Type	Class and Description
class	NativeTezOper
class	POCounterStatsTez POCounterStatsTez is used to group counters from previous vertex POCounterTez tasks
class	POCounterTez
class	POFRJoinTez POFRJoinTez is used on the backend to load replicated table from Tez ShuffleUnorderedKVInput and load fragmented table from data pipeline.
class	POIdentityInOutTez POIdentityInOutTez is used to pass through tuples as is to next vertex from previous vertex's POLocalRearrangeTez.
class	POLocalRearrangeTez POLocalRearrangeTez is used to write to a Tez OrderedPartitionedKVOutput (shuffle) or UnorderedKVOutput (broadcast)
class	POPartitionRearrangeTez The partition rearrange operator is a part of the skewed join implementation.
class	PORankTez
class	POShuffledValueInputTez POShuffledValueInputTez is used read tuples from a Tez Intermediate output from a shuffle edge To be used with POValueOutputTez.
class	POShuffleTezLoad
class	POSimpleTezLoad POSimpleTezLoad is used on the backend to read tuples from a Tez MRInput
class	POStoreTez POStoreTez is used to write to a Tez MROutput
class	POValueInputTez POValueInputTez is used read tuples from a Tez Intermediate output from a 1-1 edge
class	POValueOutputTez

Uses of Operator in org.apache.pig.impl.plan

Classes in org.apache.pig.impl.plan with type parameters of type Operator

Modifier and Type	Class and Description
class	DependencyOrderWalker<O extends Operator,P extends OperatorPlan<O>> DependencyOrderWalker traverses the graph in such a way that no node is visited before all the nodes it depends on have been visited.
class	DepthFirstWalker<O extends Operator,P extends OperatorPlan<O>> DepthFirstWalker traverses a plan in a depth first manner.
class	DotPlanDumper<E extends Operator,P extends OperatorPlan<E>,N extends Operator,S extends OperatorPlan<N>> This class puts everything that is needed to dump a plan in a format readable by graphviz's dot algorithm.
class	DotPlanDumper<E extends Operator,P extends OperatorPlan<E>,N extends Operator,S extends OperatorPlan<N>> This class puts everything that is needed to dump a plan in a format readable by graphviz's dot algorithm.
class	OperatorPlan<E extends Operator> A generic graphing class for use by LogicalPlan, PhysicalPlan, etc.
class	PlanDumper<E extends Operator,P extends OperatorPlan<E>,S extends OperatorPlan<? extends Operator>> This class dumps a nested plan to a print stream.
class	PlanDumper<E extends Operator,P extends OperatorPlan<E>,S extends OperatorPlan<? extends Operator>> This class dumps a nested plan to a print stream.
class	PlanVisitor<O extends Operator,P extends OperatorPlan<O>> A visitor mechanism for navigating and operating on a plan of Operators.
class	PlanWalker<O extends Operator,P extends OperatorPlan<O>> PlanWalker encapsulates the logic to traverse a plan.
class	ReverseDependencyOrderWalker<O extends Operator,P extends OperatorPlan<O>> ReverseDependencyOrderWalker traverses the graph in such a way that no node is visited before all the nodes that are its successors on have been visited.

Fields in org.apache.pig.impl.plan with type parameters of type Operator

Modifier and Type	Field and Description
protected Set<Operator>	DotPlanDumper.mMultiInputSubgraphs
protected Set<Operator>	DotPlanDumper.mMultiOutputSubgraphs
protected Set<Operator>	DotPlanDumper.mSubgraphs

Methods in org.apache.pig.impl.plan with parameters of type Operator

Modifier and Type	Method and Description
int	Operator.compareTo(Operator o)
protected void	PlanDumper.dumpEdge(Operator op, Operator suc) Will be called to dump the edges of the plan.
protected void	PlanDumper.dumpEdge(Operator op, Operator suc) Will be called to dump the edges of the plan.
protected void	DotPlanDumper.dumpEdge(Operator op, Operator suc)
protected void	DotPlanDumper.dumpEdge(Operator op, Operator suc)
void	Operator.rewire(Operator<V> oldPred, int oldPredIndex, Operator<V> newPred, boolean useOldPred) Make any necessary changes to a node based on a change of position in the plan.
void	Operator.rewire(Operator<V> oldPred, int oldPredIndex, Operator<V> newPred, boolean useOldPred) Make any necessary changes to a node based on a change of position in the plan.

Constructor parameters in org.apache.pig.impl.plan with type arguments of type Operator

Constructor and Description
DotPlanDumper(P plan, PrintStream ps, boolean isSubGraph, Set<Operator> mSubgraphs, Set<Operator> mMultiInputSubgraphs, Set<Operator> mMultiOutputSubgraphs)
DotPlanDumper(P plan, PrintStream ps, boolean isSubGraph, Set<Operator> mSubgraphs, Set<Operator> mMultiInputSubgraphs, Set<Operator> mMultiOutputSubgraphs)
DotPlanDumper(P plan, PrintStream ps, boolean isSubGraph, Set<Operator> mSubgraphs, Set<Operator> mMultiInputSubgraphs, Set<Operator> mMultiOutputSubgraphs)