LongMinBufferAggregator (druid-processing 28.0.0 API)

java.lang.Object
- org.apache.druid.query.aggregation.SimpleLongBufferAggregator
- - org.apache.druid.query.aggregation.LongMinBufferAggregator

All Implemented Interfaces:: BufferAggregator, HotLoopCallee

public class LongMinBufferAggregator
extends SimpleLongBufferAggregator

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 by `AggregatorFactory.getMaxIntermediateSizeWithNulls()` in the corresponding `AggregatorFactory`

Methods inherited from class org.apache.druid.query.aggregation.SimpleLongBufferAggregator
close, get, getDouble, getFloat, getLong, inspectRuntimeShape

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

Methods inherited from interface org.apache.druid.query.aggregation.BufferAggregator
isNull, relocate

- Method Detail
  - 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 by AggregatorFactory.getMaxIntermediateSizeWithNulls() in the corresponding AggregatorFactory
    
    Parameters:
    
    buf - byte buffer to initialize
    
    position - offset within the byte buffer for initialization
  - 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 aggregate
    
    position - offset within the byte buffer at which the current aggregate value is stored