public class POLoad extends PhysicalOperator
PhysicalOperator.OriginalLocation
alias, illustrator, input, inputAttached, inputs, lineageTracer, mBagFactory, mTupleFactory, outputs, parentPlan, pigLogger, reporter, requestedParallelism, res, RESULT_EMPTY, RESULT_EOP, resultType
Constructor and Description |
---|
POLoad(OperatorKey k) |
POLoad(OperatorKey k,
FileSpec lFile) |
POLoad(OperatorKey k,
int rp,
FileSpec lFile) |
POLoad(OperatorKey k,
LoadFunc lf) |
Modifier and Type | Method and Description |
---|---|
List<String> |
getCacheFiles() |
FileSpec |
getLFile() |
long |
getLimit() |
LoadFunc |
getLoadFunc() |
Result |
getNextTuple()
The main method used by this operator's successor
to read tuples from the specified file using the
specified load function.
|
PigContext |
getPc() |
List<String> |
getShipFiles() |
String |
getSignature() |
Tuple |
illustratorMarkup(Object in,
Object out,
int eqClassIndex)
input tuple mark up to be illustrate-able
|
boolean |
isTmpLoad() |
String |
name() |
void |
setCacheFiles(List<String> cf) |
void |
setIsTmpLoad(boolean tmp) |
void |
setLFile(FileSpec file) |
void |
setLimit(long limit) |
void |
setPc(PigContext pc) |
void |
setShipFiles(List<String> sf) |
void |
setSignature(String signature) |
void |
setUp()
Set up the loader by
1) Instantiating the load func
2) Opening an input stream to the specified file and
3) Binding to the input stream at the specified offset.
|
boolean |
supportsMultipleInputs()
Indicates whether this operator supports multiple inputs.
|
boolean |
supportsMultipleOutputs()
Indicates whether this operator supports multiple outputs.
|
void |
tearDown()
At the end of processing, the inputstream is closed
using this method
|
void |
visit(PhyPlanVisitor v)
Visit this node with the provided visitor.
|
addOriginalLocation, addOriginalLocation, attachInput, clone, cloneHelper, clonePlans, copyAliasFrom, detachInput, getAlias, getAliasString, getIllustrator, getInputs, getLogger, getNext, getNextBigDecimal, getNextBigInteger, getNextBoolean, getNextDataBag, getNextDataByteArray, getNextDateTime, getNextDouble, getNextFloat, getNextInteger, getNextLong, getNextMap, getNextString, getOriginalLocations, getParentPlan, getPigLogger, getReporter, getRequestedParallelism, getResultType, isAccumStarted, isAccumulative, isBlocking, isEndOfAllInput, isInputAttached, processInput, reset, setAccumEnd, setAccumStart, setAccumulative, setIllustrator, setInputs, setParentPlan, setPigLogger, setReporter, setRequestedParallelism, setResultType, staticDataCleanup
compareTo, equals, getOperatorKey, getProjectionMap, hashCode, regenerateProjectionMap, rewire, toString, unsetProjectionMap
public POLoad(OperatorKey k)
public POLoad(OperatorKey k, FileSpec lFile)
public POLoad(OperatorKey k, int rp, FileSpec lFile)
public POLoad(OperatorKey k, LoadFunc lf)
public void setUp() throws IOException
IOException
public void tearDown() throws IOException
IOException
public Result getNextTuple() throws ExecException
getNextTuple
in class PhysicalOperator
ExecException
public String name()
name
in class Operator<PhyPlanVisitor>
public boolean supportsMultipleInputs()
Operator
supportsMultipleInputs
in class Operator<PhyPlanVisitor>
public boolean supportsMultipleOutputs()
Operator
supportsMultipleOutputs
in class Operator<PhyPlanVisitor>
public void visit(PhyPlanVisitor v) throws VisitorException
Operator
visit
in class PhysicalOperator
v
- Visitor to visit with.VisitorException
- if the visitor has a problem.public FileSpec getLFile()
public void setLFile(FileSpec file)
public void setIsTmpLoad(boolean tmp)
public boolean isTmpLoad()
public PigContext getPc()
public void setPc(PigContext pc)
public String getSignature()
public void setSignature(String signature)
public LoadFunc getLoadFunc()
public Tuple illustratorMarkup(Object in, Object out, int eqClassIndex)
Illustrable
in
- input tupleout
- output tuple before wrapped in ExampleTupleeqClassIndex
- index into equivalence classes in illustratorpublic long getLimit()
public void setLimit(long limit)
Copyright © 2007-2017 The Apache Software Foundation