Package ca.uqac.lif.cep.tuples

Class GetAttribute

java.lang.Object

ca.uqac.lif.cep.functions.Function

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

ca.uqac.lif.cep.tuples.GetAttribute

All Implemented Interfaces:

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

public class GetAttribute
extends ca.uqac.lif.cep.functions.UnaryFunction<AttributeGroup,Object>

Gets the value of an attribute in an AttributeGroup

Author:

Sylvain Hallé

Field Summary

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

s_maxInputArity

Constructor Summary

Constructors

Constructor	Description
GetAttribute(String attribute_name)	Creates a new instance of the function
GetAttribute(String trace_name, String attribute_name)	Creates a new instance of the function

Method Summary

Modifier and Type	Method	Description
static void	build(ArrayDeque<Object> stack)
GetAttribute	duplicate(boolean with_state)
String	getAttributeName()	Gets the name of the attribute to get
String	getTraceName()	Gets the name of the trace to get the attribute from
Object	getValue(AttributeGroup g)
String	toString()

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

evaluate, getInputArity, getInputTypesFor, getOutputArity, getOutputTypeFor, 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, wait, wait, wait

Constructor Details

GetAttribute

public GetAttribute(String trace_name,
 String attribute_name)

Creates a new instance of the function

Parameters:

trace_name - The name of the trace to get the attribute from

attribute_name - The name of the attribute to get

GetAttribute

public GetAttribute(String attribute_name)

Creates a new instance of the function

Parameters:

attribute_name - The name of the attribute to get

Method Details

getAttributeName

public String getAttributeName()

Gets the name of the attribute to get

Returns:

The name

getTraceName

public String getTraceName()

Gets the name of the trace to get the attribute from

Returns:

The name; null if no name has been given

getValue

public Object getValue(AttributeGroup g)

Specified by:

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

duplicate

public GetAttribute duplicate(boolean with_state)

Specified by:

duplicate in interface ca.uqac.lif.cep.Duplicable

Overrides:

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

toString

public String toString()

Overrides:

toString in class Object

build

public static void build(ArrayDeque<Object> stack)