LineageFindRelVisitor (Pig 0.18.0 API)

java.lang.Object
- org.apache.pig.newplan.PlanVisitor
- - org.apache.pig.newplan.logical.relational.LogicalRelationalNodesVisitor
  - - org.apache.pig.newplan.logical.visitor.LineageFindRelVisitor

```
public class LineageFindRelVisitor
extends LogicalRelationalNodesVisitor
```
Create mapping between uid and Load FuncSpec when the LogicalExpression associated with it is known to hold an unmodified element of data returned by the load function. This information is used to find the LoadCaster to be used to cast bytearrays into other other types.

Field Summary
- Fields inherited from class org.apache.pig.newplan.PlanVisitor
  currentWalker, DEFAULT_SCOPE, plan

Constructor Summary

Constructors
Constructor and Description

LineageFindRelVisitor(OperatorPlan plan)

Constructors
Constructor and Description
`LineageFindRelVisitor(OperatorPlan plan)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`java.util.Map<java.lang.Long,FuncSpec>`	`getUid2LoadFuncMap()`
`void`	`visit(LOCogroup group)`
`void`	`visit(LOCross relOp)`
`void`	`visit(LODistinct relOp)`
`void`	`visit(LOFilter filter)`
`void`	`visit(LOForEach fe)`
`void`	`visit(LOGenerate gen)`
`void`	`visit(LOInnerLoad innerLoad)`
`void`	`visit(LOJoin join)`
`void`	`visit(LOLimit loLimit)`
`void`	`visit(LOLoad load)`
`void`	`visit(LORank rank)`
`void`	`visit(LOSort sort)`
`void`	`visit(LOSplit relOp)`
`void`	`visit(LOSplitOutput split)`
`void`	`visit(LOStore relOp)`
`void`	`visit(LOStream stream)`
`void`	`visit(LOUnion relOp)`

Methods inherited from class org.apache.pig.newplan.logical.relational.LogicalRelationalNodesVisitor
visit, visit

Methods inherited from class org.apache.pig.newplan.PlanVisitor
getPlan, popWalker, pushWalker, visit

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LineageFindRelVisitor
```
public LineageFindRelVisitor(OperatorPlan plan)
                      throws FrontendException
```
    Throws:
    
    FrontendException
- Method Detail
  - getUid2LoadFuncMap
```
public java.util.Map<java.lang.Long,FuncSpec> getUid2LoadFuncMap()
```
  - visit
```
public void visit(LOLoad load)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOStream stream)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOInnerLoad innerLoad)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOFilter filter)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOCogroup group)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOJoin join)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOForEach fe)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOGenerate gen)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOSort sort)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LORank rank)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LODistinct relOp)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOLimit loLimit)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOSplit relOp)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOStore relOp)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOCross relOp)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOUnion relOp)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException
  - visit
```
public void visit(LOSplitOutput split)
           throws FrontendException
```
    Overrides:
    
    visit in class LogicalRelationalNodesVisitor
    
    Throws:
    
    FrontendException

Class LineageFindRelVisitor

Field Summary

Fields inherited from class org.apache.pig.newplan.PlanVisitor

Constructor Summary

Method Summary

Methods inherited from class org.apache.pig.newplan.logical.relational.LogicalRelationalNodesVisitor

Methods inherited from class org.apache.pig.newplan.PlanVisitor

Methods inherited from class java.lang.Object

Constructor Detail

LineageFindRelVisitor

Method Detail

getUid2LoadFuncMap

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit

visit