Package org.apache.druid.data.input
Class HandlingInputRowIterator
- java.lang.Object
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- org.apache.druid.data.input.HandlingInputRowIterator
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- All Implemented Interfaces:
Closeable
,AutoCloseable
,Iterator<InputRow>
,CloseableIterator<InputRow>
public class HandlingInputRowIterator extends Object implements CloseableIterator<InputRow>
DecoratedCloseableIterator
that can process rows withHandlingInputRowIterator.InputRowHandler
s.
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Nested Class Summary
Nested Classes Modifier and Type Class Description static interface
HandlingInputRowIterator.InputRowHandler
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Constructor Summary
Constructors Constructor Description HandlingInputRowIterator(CloseableIterator<InputRow> inputRowIterator, List<HandlingInputRowIterator.InputRowHandler> inputRowHandlers)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
boolean
hasNext()
InputRow
next()
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.druid.java.util.common.parsers.CloseableIterator
flatMap, map
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Methods inherited from interface java.util.Iterator
forEachRemaining, remove
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Constructor Detail
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HandlingInputRowIterator
public HandlingInputRowIterator(CloseableIterator<InputRow> inputRowIterator, List<HandlingInputRowIterator.InputRowHandler> inputRowHandlers)
- Parameters:
inputRowIterator
- Source ofInputRow
sinputRowHandlers
- Before yielding the nextInputRow
, eachHandlingInputRowIterator.InputRowHandler
is sequentially applied to theInputRow
until one of them returns true or all of the handlers are applied.
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Method Detail
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next
@Nullable public InputRow next()
- Specified by:
next
in interfaceIterator<InputRow>
- Returns:
- Next
InputRow
or null if row was successfully handled by anHandlingInputRowIterator.InputRowHandler
.
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close
public void close() throws IOException
- Specified by:
close
in interfaceAutoCloseable
- Specified by:
close
in interfaceCloseable
- Throws:
IOException
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