ca.uqac.lif.cep.util.NthElement Class Reference

Function that returns the n-th element of an ordered collection (array or list). More...

Public Member Functions
	NthElement (int n)
	Creates a new instance of the function. More...
Object	getValue (Object x)
NthElement	duplicate (boolean with_state)
	Duplicates an object. More...
String	toString ()
Integer	printState ()
NthElement	readState (Object o)
Public Member Functions inherited from ca.uqac.lif.cep.functions.UnaryFunction< T, U >
	UnaryFunction (Class< T > t, Class< U > u)
	Creates a new instance of an unary function. More...
void	evaluate (Object[] inputs, Object[] outputs, Context context, EventTracker tracker)
abstract U	getValue (T x)
	Evaluates the function. More...
final int	getInputArity ()
final int	getOutputArity ()
void	reset ()
UnaryFunction< T, U >	duplicate (boolean with_state)
	Duplicates an object. More...
final void	getInputTypesFor (Set< Class<?>> classes, int index)
Class<?>	getOutputTypeFor (int index)
Public Member Functions inherited from ca.uqac.lif.cep.functions.Function
void	evaluate (Object[] inputs, Object[] outputs, Context context)
	Evaluates the outputs of the function, given some inputs. More...
abstract void	evaluate (Object[] inputs, Object[] outputs, Context context, EventTracker tracker)
	Evaluates the outputs of the function, given some inputs. More...
void	evaluate (Object[] inputs, Object[] outputs)
	Evaluates the outputs of the function, given some inputs. More...
boolean	evaluatePartial (Object[] inputs, Object[] outputs, Context context)
	Evaluates the outputs of the function, given some inputs. More...
boolean	evaluateLazy (Object[] inputs, Object[] outputs)
	Attempts a lazy evaluation of the function, given some inputs. More...
abstract int	getInputArity ()
	Gets the function's input arity, i.e. More...
abstract int	getOutputArity ()
	Gets the function's output arity, i.e. More...
void	reset ()
	Resets the function to its initial state. More...
abstract void	getInputTypesFor (Set< Class<?>> classes, int index)
	Populates the set of classes accepted by the function for its i-th input. More...
abstract Class<?>	getOutputTypeFor (int index)
	Returns the type of the events produced by the function for its i-th output. More...
Future< Object[]>	evaluateFast (Object[] inputs, Object[] outputs, Context context, ExecutorService service)
	Utility method that delegates the call to evaluate() More...
final Function	duplicate ()
	Duplicates an object and sets it to its initial state. More...
abstract Function	duplicate (boolean with_state)
	Duplicates an object. More...
Object	print (ObjectPrinter<?> printer)
final Function	read (ObjectReader<?> reader, Object o) throws FunctionException
	Reads the content of a function from a serialized object. More...

Protected Member Functions
	NthElement ()
	Empty constructor. More...
Protected Member Functions inherited from ca.uqac.lif.cep.functions.Function
Object	printState ()
	Produces an object that represents the state of the current function. More...
Function	readState (Object o)
	Reads the state of a function and uses it to create a new instance. More...

Protected Attributes
int	m_n
	The position of the element to get. More...

Additional Inherited Members
Static Public Attributes inherited from ca.uqac.lif.cep.functions.Function
static final int	s_maxInputArity = 10
	The maximum input arity that a function can have. More...

Detailed Description

Function that returns the n-th element of an ordered collection (array or list).

Author

Sylvain Hallé

Since

0.7

Definition at line 32 of file NthElement.java.

Constructor & Destructor Documentation

NthElement() [1/2]

ca.uqac.lif.cep.util.NthElement.NthElement

(

int

n

)

Creates a new instance of the function.

Parameters

n	The position of the element to get

Definition at line 45 of file NthElement.java.

NthElement() [2/2]

ca.uqac.lif.cep.util.NthElement.NthElement ( )

protected

Empty constructor.

Used only for deserialization.

Definition at line 54 of file NthElement.java.

Member Function Documentation

duplicate()

NthElement ca.uqac.lif.cep.util.NthElement.duplicate

(

boolean

with_state

)

Duplicates an object.

Optionally, set the object into the same state as the source object.

Parameters

with_state

Set to true to replicate the object's state, false to create a new copy in the initial state.

Returns

Another object

Implements ca.uqac.lif.cep.Duplicable.

Definition at line 90 of file NthElement.java.

getValue()

Object ca.uqac.lif.cep.util.NthElement.getValue

(

Object

x

)

Definition at line 60 of file NthElement.java.

printState()

Integer ca.uqac.lif.cep.util.NthElement.printState

(

)

Since

0.10.2

Definition at line 105 of file NthElement.java.

readState()

NthElement ca.uqac.lif.cep.util.NthElement.readState

(

Object

o

)

Since

0.10.2

Definition at line 114 of file NthElement.java.

toString()

String ca.uqac.lif.cep.util.NthElement.toString

(

)

Definition at line 96 of file NthElement.java.

Member Data Documentation

m_n

int ca.uqac.lif.cep.util.NthElement.m_n

protected

The position of the element to get.

Definition at line 37 of file NthElement.java.

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The documentation for this class was generated from the following file:

• /home/sylvain/Workspaces/BeepBeep/beepbeep-3/Core/src/ca/uqac/lif/cep/util/NthElement.java