Package org.hcjf.layers.query.functions

Class DistinctQueryAggregateFunction

java.lang.Object

org.hcjf.layers.Layer

org.hcjf.layers.query.functions.BaseFunctionLayer

org.hcjf.layers.query.functions.BaseQueryAggregateFunctionLayer

org.hcjf.layers.query.functions.DistinctQueryAggregateFunction

All Implemented Interfaces:

java.lang.reflect.InvocationHandler, LayerInterface, QueryAggregateFunctionLayerInterface

public class DistinctQueryAggregateFunction
extends BaseQueryAggregateFunctionLayer

Nested Class Summary

Nested classes/interfaces inherited from class org.hcjf.layers.Layer

Layer.Access, Layer.LayerAgent, Layer.LayerAgentMBean

Constructor Summary

Constructors

Constructor	Description
DistinctQueryAggregateFunction()

Method Summary

Modifier and Type	Method	Description
java.util.Collection	evaluate(java.lang.String alias, java.util.Collection resultSet, java.lang.Object... parameters)	Evaluates the specific function.

Methods inherited from class org.hcjf.layers.query.functions.BaseQueryAggregateFunctionLayer

resolveValue

Methods inherited from class org.hcjf.layers.query.functions.BaseFunctionLayer

getParameter

Methods inherited from class org.hcjf.layers.Layer

checkAccess, getAliases, getImplName, getLayer, getProxy, getSession, getTarget, invoke, isOverwritable, isPlugin, isStateful

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.reflect.InvocationHandler

invoke

Methods inherited from interface org.hcjf.layers.LayerInterface

getImplName, getRegex, isDistributed, isPlugin, isStateful

Constructor Detail

DistinctQueryAggregateFunction

public DistinctQueryAggregateFunction()

Method Detail

evaluate

public java.util.Collection evaluate(java.lang.String alias,
                                     java.util.Collection resultSet,
                                     java.lang.Object... parameters)

Description copied from interface: QueryAggregateFunctionLayerInterface

Evaluates the specific function.

Parameters:

alias - Alias of the function

resultSet - Result set obtained for the query evaluation.

parameters - Function's parameters.

Returns:

Function result.