inra.ijpb.label.select

Interface RelationalOperator

public interface RelationalOperator

Implementation of a relational operator that computes a boolean value from two scalar input values. Declare abstract methods for integer and floating-point comparisons. Common relational operators are provided as static constants.

Author:

dlegland

Field Summary

Fields

Modifier and Type	Field and Description
static RelationalOperator	EQ Implementation of the "Equal" operator.
static RelationalOperator	GE Implementation of the "Greater Than Or Equal" operator.
static RelationalOperator	GT Implementation of the "Greater Than" operator.
static RelationalOperator	LE Implementation of the "Lower Than Or Equal" operator.
static RelationalOperator	LT Implementation of the "Lower Than" operator.
static RelationalOperator	NE Implementation of the "Not Equal" operator.

Method Summary

Modifier and Type	Method and Description
boolean	evaluate(double value1, double value2) Evaluates this operator from two floating-point values.
boolean	evaluate(int value1, int value2) Evaluates this operator from two integer values.

Field Detail

GT

static final RelationalOperator GT

Implementation of the "Greater Than" operator.

LT

static final RelationalOperator LT

Implementation of the "Lower Than" operator.

GE

static final RelationalOperator GE

Implementation of the "Greater Than Or Equal" operator.

LE

static final RelationalOperator LE

Implementation of the "Lower Than Or Equal" operator.

EQ

static final RelationalOperator EQ

Implementation of the "Equal" operator.

NE

static final RelationalOperator NE

Implementation of the "Not Equal" operator.

Method Detail

evaluate

boolean evaluate(int value1,
                 int value2)

Evaluates this operator from two integer values.

Parameters:

value1 - the first integer value.

value2 - the second integer value.

Returns:

the result of the relational operator.

evaluate

boolean evaluate(double value1,
                 double value2)

Evaluates this operator from two floating-point values.

Parameters:

value1 - the first floating-point value.

value2 - the second floating-point value.

Returns:

the result of the relational operator.