TestFunctions.MedianStringType

java.lang.Object

org.h2.test.db.TestFunctions.MedianStringType

All Implemented Interfaces:: Aggregate

Enclosing class:: TestFunctions

public static class TestFunctions.MedianStringType extends Object implements Aggregate

This median implementation keeps all objects in memory.

Constructor Summary

Constructors

Constructor

Description

MedianStringType()
Method Summary

Modifier and Type

Method

Description

void

add(Object value)

This method is called once for each row.

int

getInternalType(int[] inputTypes)

This method must return the H2 data type, Value, of the aggregate function, given the H2 data type of the input data.

Object

getResult()

This method returns the computed aggregate value.

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.Aggregate
init

Constructor Details
- MedianStringType
  
  public MedianStringType()
Method Details
- add
  
  public void add(Object value)
  
  Description copied from interface: Aggregate
  
  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 Aggregate
  
  Parameters:
  
  value - the value(s) for this row
- getResult
  
  public Object getResult()
  
  Description copied from interface: Aggregate
  
  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 Aggregate
  
  Returns:
  
  the aggregated value
- getInternalType
  
  public int getInternalType(int[] inputTypes) throws SQLException
  
  Description copied from interface: Aggregate
  
  This method must return the H2 data type, Value, of the aggregate function, given the H2 data 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:
  
  getInternalType in interface Aggregate
  
  Parameters:
  
  inputTypes - the H2 data type of the parameters,
  
  Returns:
  
  the H2 data type of the result
  
  Throws:
  
  SQLException - if the number/type of parameters passed is incorrect