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java.lang.Objectorg.apache.hadoop.hive.ql.exec.Operator<UDTFDesc>
org.apache.hadoop.hive.ql.exec.UDTFOperator
public class UDTFOperator
UDTFOperator.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.Operator |
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Operator.OperatorFunc, Operator.ProgressCounter, Operator.State |
Field Summary | |
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protected org.apache.commons.logging.Log |
LOG
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Fields inherited from class org.apache.hadoop.hive.ql.exec.Operator |
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alias, beginTime, childOperators, childOperatorsArray, childOperatorsTag, colExprMap, conf, counterNames, counterNameToEnum, counters, done, fatalErrorCntr, groupKeyObject, id, inputObjInspectors, inputRows, isLogInfoEnabled, numInputRowsCntr, numOutputRowsCntr, operatorId, out, outputObjInspector, outputRows, parentOperators, reporter, state, statsMap, timeTakenCntr, totalTime |
Constructor Summary | |
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UDTFOperator()
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Method Summary | |
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protected void |
closeOp(boolean abort)
Operator specific close routine. |
void |
forwardUDTFOutput(Object o)
forwardUDTFOutput is typically called indirectly by the GenericUDTF when the GenericUDTF has generated output rows that should be passed on to the next operator(s) in the DAG. |
String |
getName()
Implements the getName function for the Node Interface. |
static String |
getOperatorName()
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OperatorType |
getType()
Return the type of the specific operator among the types in OperatorType. |
protected void |
initializeOp(Configuration hconf)
Operator specific initialization. |
void |
processOp(Object row,
int tag)
Process the row. |
Methods inherited from class java.lang.Object |
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equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected final org.apache.commons.logging.Log LOG
Constructor Detail |
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public UDTFOperator()
Method Detail |
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protected void initializeOp(Configuration hconf) throws HiveException
Operator
initializeOp
in class Operator<UDTFDesc>
HiveException
public void processOp(Object row, int tag) throws HiveException
Operator
processOp
in class Operator<UDTFDesc>
row
- The object representing the row.tag
- The tag of the row usually means which parent this row comes from.
Rows with the same tag should have exactly the same rowInspector
all the time.
HiveException
public void forwardUDTFOutput(Object o) throws HiveException
o
-
HiveException
public String getName()
Operator
getName
in interface Node
getName
in class Operator<UDTFDesc>
public static String getOperatorName()
public OperatorType getType()
Operator
getType
in class Operator<UDTFDesc>
protected void closeOp(boolean abort) throws HiveException
Operator
closeOp
in class Operator<UDTFDesc>
HiveException
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