TestFunctions.MedianString

java.lang.Object

org.h2.test.db.TestFunctions.MedianString

All Implemented Interfaces:: AggregateFunction

Enclosing class:: TestFunctions

public static class TestFunctions.MedianString extends Object implements AggregateFunction

This median implementation keeps all objects in memory.

Constructor Summary

Constructors

Constructor

Description

MedianString()
Method Summary

Modifier and Type

Method

Description

void

add(Object value)

This method is called once for each row.

Object

getResult()

This method returns the computed aggregate value.

int

getType(int[] inputType)

This method must return the SQL type of the method, given the SQL type of the input data.

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

Methods inherited from interface org.h2.api.AggregateFunction
init

Constructor Details
- MedianString
  
  public MedianString()
Method Details
- add
  
  public void add(Object value)
  
  Description copied from interface: AggregateFunction
  
  This method is called once for each row. If the aggregate function is called with multiple parameters, those are passed as array.
  
  Specified by:
  
  add in interface AggregateFunction
  
  Parameters:
  
  value - the value(s) for this row
- getResult
  
  public Object getResult()
  
  Description copied from interface: AggregateFunction
  
  This method returns the computed aggregate value. This method must preserve previously added values and must be able to reevaluate result if more values were added since its previous invocation.
  
  Specified by:
  
  getResult in interface AggregateFunction
  
  Returns:
  
  the aggregated value
- getType
  
  public int getType(int[] inputType)
  
  Description copied from interface: AggregateFunction
  
  This method must return the SQL type of the method, given the SQL type of the input data. The method should check here if the number of parameters passed is correct, and if not it should throw an exception.
  
  Specified by:
  
  getType in interface AggregateFunction
  
  Parameters:
  
  inputType - the SQL type of the parameters, Types
  
  Returns:
  
  the SQL type of the result