org.springframework.rules.constraint
Class RelationalOperator

java.lang.Object
  org.springframework.core.enums.AbstractLabeledEnum
      org.springframework.core.enums.AbstractGenericLabeledEnum
          org.springframework.core.enums.StringCodedLabeledEnum
              org.springframework.rules.constraint.Operator
                  org.springframework.rules.constraint.RelationalOperator

All Implemented Interfaces:

Serializable, Comparable, LabeledEnum

public abstract class RelationalOperator
extends Operator

Type-safe enum class for supported binary operators.

Author:

Keith Donald

See Also:

Serialized Form

Field Summary

static RelationalOperator	EQUAL_TO The EQUAL_TO (==) operator
static RelationalOperator	GREATER_THAN The GREATER_THAN (>) operator
static RelationalOperator	GREATER_THAN_EQUAL_TO The GREATER_THAN_EQUAL_TO (>=) operator
static RelationalOperator	LESS_THAN The LESS_THAN (<) operator
static RelationalOperator	LESS_THAN_EQUAL_TO The LESS_THAN_EQUAL_TO (<=) operator

Fields inherited from interface org.springframework.core.enums.LabeledEnum

CODE_ORDER, DEFAULT_ORDER, LABEL_ORDER

Method Summary

abstract BinaryConstraint

getConstraint() Returns the predicate instance associated with this binary operator.

Methods inherited from class org.springframework.rules.constraint.Operator

getSymbol, negation, toString

Methods inherited from class org.springframework.core.enums.StringCodedLabeledEnum

getCode, getStringCode

Methods inherited from class org.springframework.core.enums.AbstractGenericLabeledEnum

getLabel

Methods inherited from class org.springframework.core.enums.AbstractLabeledEnum

compareTo, equals, getType, hashCode

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

EQUAL_TO

public static final RelationalOperator EQUAL_TO

The EQUAL_TO (==) operator

LESS_THAN

public static final RelationalOperator LESS_THAN

The LESS_THAN (<) operator

LESS_THAN_EQUAL_TO

public static final RelationalOperator LESS_THAN_EQUAL_TO

The LESS_THAN_EQUAL_TO (<=) operator

GREATER_THAN

public static final RelationalOperator GREATER_THAN

The GREATER_THAN (>) operator

GREATER_THAN_EQUAL_TO

public static final RelationalOperator GREATER_THAN_EQUAL_TO

The GREATER_THAN_EQUAL_TO (>=) operator

Method Detail

getConstraint

public abstract BinaryConstraint getConstraint()

Returns the predicate instance associated with this binary operator.

Returns:

the associated binary predicate