GroupSum (Data Pipeline JavaDoc)

java.lang.Object

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

com.northconcepts.datapipeline.group.operation.GroupSum

public class GroupSum extends GroupOperation<BigDecimal>

A GroupOperation that totals the non-null values of the source field in each group as a BigDecimal.

Constructor Summary

Constructors

Constructor

Description

GroupSum(FieldPath sourceFieldName)

GroupSum(FieldPath sourceFieldName, FieldPath targetFieldName)

GroupSum(FieldPath sourceFieldName, FieldPath targetFieldName, boolean excludeNulls)

GroupSum(String sourceFieldName)

GroupSum(String sourceFieldName, String targetFieldName)

GroupSum(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.

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

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

Constructor Details
- GroupSum
  
  public GroupSum(String sourceFieldName)
- GroupSum
  
  public GroupSum(FieldPath sourceFieldName)
- GroupSum
  
  public GroupSum(String sourceFieldName, String targetFieldName)
- GroupSum
  
  public GroupSum(FieldPath sourceFieldName, FieldPath targetFieldName)
- GroupSum
  
  public GroupSum(String sourceFieldName, String targetFieldName, boolean excludeNulls)
- GroupSum
  
  public GroupSum(FieldPath sourceFieldName, FieldPath targetFieldName, boolean excludeNulls)
Method Details
- 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>