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Class gpsys.primitives.EQ

java.lang.Object
   |
   +----gpsys.Primitive
           |
           +----gpsys.Function
                   |
                   +----gpsys.primitives.EQ

public class EQ
extends Function
	BOOLEAN EQ(<typeX> a, <typeX> b)
 
EQ is a generic function that tests the equality of its two arguments. EQ needs to be Type instantiated during construction to work with particular argument Types. The supported argument Types include BYTE, SHORT, INT, LONG, FLOAT, DOUBLE, CHAR and BOOLEAN.

Author:
Adil Qureshi
Department of Computer Science,
University College London,
Gower St,
London WC1E 6BT,
UK.
See Also:
Type, Primitive, Function

Constructor Index

 o EQ(Type)
Constructs an EQ Function that works with the specified Type.

Method Index

 o evaluateBoolean(Individual, Gene[])
Used to test arguments of any of the supported Types for equality.
 o instance()
Creates an instance of this EQ object.
 o toString()
Returns a String representation of this Function.

Constructors

 o EQ
 public EQ(Type argTypes)
Constructs an EQ Function that works with the specified Type. The supported Types include BYTE, SHORT, INT, LONG, FLOAT, DOUBLE, CHAR and BOOLEAN.

Parameters:
type - The Type of this EQ Function.

Methods

 o evaluateBoolean
 public final boolean evaluateBoolean(Individual i,
                                      Gene arguments[]) throws EvaluationException
Used to test arguments of any of the supported Types for equality.

Parameters:
i - The individual being evaluated.
arguments - The Gene trees representing the arguments to be tested.
Returns:
A boolean whose value is true if they are equal and false otherwise.
Throws: EvaluationException
If there is an evaluation failure.
Overrides:
evaluateBoolean in class Function
 o instance
 public final Primitive instance()
Creates an instance of this EQ object. The Type instantiation is preserved so that if an INT EQ is being cloned, the clone will also be INT instantiated.

Returns:
A reference to this Object (yes the same object, since the type information is to be the same, there are therefore no instance variables to be modified.
Overrides:
instance in class Primitive
 o toString
 public String toString()
Returns a String representation of this Function.

Returns:
A String containing the name of the Function.
Overrides:
toString in class Primitive

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