java.lang.Object

com.northconcepts.datapipeline.group.GroupOperation<BigDecimal>

com.northconcepts.datapipeline.group.operation.GroupAverage

public class GroupAverage extends GroupOperation<BigDecimal>

A GroupOperation that averages the source field in each group as a BigDecimal; unless excludeNulls is set, null values count as zero.

Constructor Summary

Constructors

Constructor

Description

GroupAverage(FieldPath sourceFieldName)

GroupAverage(FieldPath sourceFieldName, FieldPath targetFieldName)

GroupAverage(FieldPath sourceFieldName, FieldPath targetFieldName, boolean excludeNulls)

GroupAverage(String sourceFieldName)

GroupAverage(String sourceFieldName, String targetFieldName)

GroupAverage(String sourceFieldName, String targetFieldName, boolean excludeNulls)
Method Summary

Modifier and Type

Method

Description

protected GroupOperationField<BigDecimal>

createField()

Creates the accumulator that computes this operation's result for one group; called once per group in each window.

RoundingMode

getRoundingMode()

Returns the rounding applied to the average (defaults to RoundingMode.HALF_UP).

int

getScale()

Returns the number of decimal places in the average (defaults to 5).

GroupAverage

setRoundingMode(RoundingMode roundingMode)

Sets the rounding applied to the average (defaults to RoundingMode.HALF_UP).

GroupAverage

setScale(int scale)

Sets the number of decimal places in the average (defaults to 5).

String

toString()

Methods inherited from class com.northconcepts.datapipeline.group.GroupOperation
getExcludeNulls, getFilter, getSourceFieldName, getSourceFieldPath, getTargetFieldName, getTargetFieldPath, setExcludeNulls, setFilter, setTargetFieldName

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

Constructor Details
- GroupAverage
  
  public GroupAverage(String sourceFieldName)
- GroupAverage
  
  public GroupAverage(FieldPath sourceFieldName)
- GroupAverage
  
  public GroupAverage(String sourceFieldName, String targetFieldName)
- GroupAverage
  
  public GroupAverage(FieldPath sourceFieldName, FieldPath targetFieldName)
- GroupAverage
  
  public GroupAverage(String sourceFieldName, String targetFieldName, boolean excludeNulls)
- GroupAverage
  
  public GroupAverage(FieldPath sourceFieldName, FieldPath targetFieldName, boolean excludeNulls)
Method Details
- getScale
  
  public int getScale()
  
  Returns the number of decimal places in the average (defaults to 5).
- setScale
  
  public GroupAverage setScale(int scale)
  
  Sets the number of decimal places in the average (defaults to 5).
- getRoundingMode
  
  public RoundingMode getRoundingMode()
  
  Returns the rounding applied to the average (defaults to RoundingMode.HALF_UP).
- setRoundingMode
  
  public GroupAverage setRoundingMode(RoundingMode roundingMode)
  
  Sets the rounding applied to the average (defaults to RoundingMode.HALF_UP).
- createField
  
  protected GroupOperationField<BigDecimal> createField()
  
  Description copied from class: GroupOperation
  
  Creates the accumulator that computes this operation's result for one group; called once per group in each window.
  
  Specified by:
  
  createField in class GroupOperation<BigDecimal>
- toString
  
  public String toString()
  
  Overrides:
  
  toString in class GroupOperation<BigDecimal>

Class GroupAverage

Constructor Summary

Method Summary

Methods inherited from class com.northconcepts.datapipeline.group.GroupOperation

Methods inherited from class java.lang.Object

Constructor Details

GroupAverage

GroupAverage

GroupAverage

GroupAverage

GroupAverage

GroupAverage

Method Details

getScale

setScale

getRoundingMode

setRoundingMode

createField

toString