Class LongMaxBufferAggregator
- java.lang.Object
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- org.apache.druid.query.aggregation.SimpleLongBufferAggregator
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- org.apache.druid.query.aggregation.LongMaxBufferAggregator
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- All Implemented Interfaces:
BufferAggregator
,HotLoopCallee
public class LongMaxBufferAggregator extends SimpleLongBufferAggregator
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
aggregate(ByteBuffer buf, int position)
Aggregates metric values into the given aggregate byte representation Implementations of this method must read in the aggregate value from the buffer at the given position, aggregate the next element of data and write the updated aggregate value back into the buffer.void
init(ByteBuffer buf, int position)
Initializes the buffer location Implementations of this method must initialize the byte buffer at the given position Implementations must not change the position, limit or mark of the given buffer This method must not exceed the number of bytes returned byAggregatorFactory.getMaxIntermediateSizeWithNulls()
in the correspondingAggregatorFactory
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Methods inherited from class org.apache.druid.query.aggregation.SimpleLongBufferAggregator
close, get, getDouble, getFloat, getLong, inspectRuntimeShape
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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.query.aggregation.BufferAggregator
isNull, relocate
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Method Detail
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init
public void init(ByteBuffer buf, int position)
Description copied from interface:BufferAggregator
Initializes the buffer location Implementations of this method must initialize the byte buffer at the given position Implementations must not change the position, limit or mark of the given buffer This method must not exceed the number of bytes returned byAggregatorFactory.getMaxIntermediateSizeWithNulls()
in the correspondingAggregatorFactory
- Parameters:
buf
- byte buffer to initializeposition
- offset within the byte buffer for initialization
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aggregate
public void aggregate(ByteBuffer buf, int position)
Description copied from interface:BufferAggregator
Aggregates metric values into the given aggregate byte representation Implementations of this method must read in the aggregate value from the buffer at the given position, aggregate the next element of data and write the updated aggregate value back into the buffer. Implementations must not change the position, limit or mark of the given buffer- Parameters:
buf
- byte buffer storing the byte array representation of the aggregateposition
- offset within the byte buffer at which the current aggregate value is stored
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