org.apache.torque.util.functions
Class Max

java.lang.Object
  org.apache.torque.util.functions.AggregateFunction
      org.apache.torque.util.functions.Max

All Implemented Interfaces:

Column, SQLFunction

public class Max
extends AggregateFunction

SQL99 Standard max function.

Version:

$Id: Max.java 1388656 2012-09-21 19:59:16Z tfischer $

Constructor Summary

Max(Column column)
Construct an MAX function class with the column to calculate the maximum from.

Max(Column column, boolean distinct)
Construct an MAX function class with the column to calculate the maximum from and possibly a distinct modifier.

Max(String sqlExpression)
Construct an MAX function class with an SQL expression to calculate the maximum from.

Method Summary

void	setFunction(String function) This method cannot be called, an UnsupportedOperationException will always be thrown.

Methods inherited from class org.apache.torque.util.functions.AggregateFunction

getArgument, getArguments, getColumn, getColumnName, getFullTableName, getFunction, getSchemaName, getSqlExpression, getTableName, isDistinct, setArguments, setColumn

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Max

public Max(Column column)

Construct an MAX function class with the column to calculate the maximum from.

Parameters:

column - the Column to calculate the maximum from.

Max

public Max(String sqlExpression)

Construct an MAX function class with an SQL expression to calculate the maximum from.

Parameters:

sqlExpression - the SQL expression to calculate the maximum from.

Max

public Max(Column column,
           boolean distinct)

Construct an MAX function class with the column to calculate the maximum from and possibly a distinct modifier.

Parameters:

column - the Column to calculate the maximum from.

distinct - whether to calculate the maximum from only distinct values.

Method Detail

setFunction

public void setFunction(String function)

This method cannot be called, an UnsupportedOperationException will always be thrown.

Overrides:

setFunction in class AggregateFunction

Parameters:

function - disregarded.

Throws:

UnsupportedOperationException - always.