Package ca.uqac.lif.cep.tuples

Class Select.SelectFunction

java.lang.Object

ca.uqac.lif.cep.functions.Function

ca.uqac.lif.cep.functions.UnaryFunction<AttributeGroup,Object>

ca.uqac.lif.cep.tuples.Select.SelectFunction

All Implemented Interfaces:

ca.uqac.lif.cep.Duplicable, ca.uqac.lif.cep.functions.DuplicableFunction

Enclosing class:

Select

public static class Select.SelectFunction
extends ca.uqac.lif.cep.functions.UnaryFunction<AttributeGroup,Object>

The internal function performing the actual work for the From processor.

Author:

Sylvain Hallé

Field Summary

Fields

Modifier and Type	Field	Description
protected AttributeExpression[]	m_expressions	The expressions used to build the output tuple

Fields inherited from class ca.uqac.lif.cep.functions.Function

s_maxInputArity

Constructor Summary

Constructors

Constructor	Description
SelectFunction(AttributeExpression... expressions)	Creates a new instance of the SELECT function
SelectFunction(Collection<AttributeExpression> expressions)	Creates a new instance of the SELECT function

Method Summary

Modifier and Type	Method	Description
Class<?>	getOutputTypeFor(int index)
Object	getValue(AttributeGroup group)

Methods inherited from class ca.uqac.lif.cep.functions.UnaryFunction

duplicate, evaluate, getInputArity, getInputTypesFor, getOutputArity, reset

Methods inherited from class ca.uqac.lif.cep.functions.Function

duplicate, evaluate, evaluate, evaluateLazy, evaluatePartial, printState, readState

Methods inherited from class java.lang.Object

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

Field Details

m_expressions

protected AttributeExpression[] m_expressions

The expressions used to build the output tuple

Constructor Details

SelectFunction

public SelectFunction(AttributeExpression... expressions)

Creates a new instance of the SELECT function

Parameters:

expressions - The definition of each attribute of the output tuples to create

SelectFunction

public SelectFunction(Collection<AttributeExpression> expressions)

Creates a new instance of the SELECT function

Parameters:

expressions - The definition of each attribute of the output tuples to create

Method Details

getValue

public Object getValue(AttributeGroup group)

Specified by:

getValue in class ca.uqac.lif.cep.functions.UnaryFunction<AttributeGroup,Object>

getOutputTypeFor

public Class<?> getOutputTypeFor(int index)

Overrides:

getOutputTypeFor in class ca.uqac.lif.cep.functions.UnaryFunction<AttributeGroup,Object>