de.hybris.platform.btg.condition.impl

Class NumericExpressionEvaluator

java.lang.Object

de.hybris.platform.btg.condition.impl.AbstractExpressionEvaluator

de.hybris.platform.btg.condition.impl.AbstractComparableExpressionEvaluator<java.lang.Comparable>

de.hybris.platform.btg.condition.impl.NumericExpressionEvaluator

All Implemented Interfaces:

ExpressionEvaluator

public class NumericExpressionEvaluator
extends AbstractComparableExpressionEvaluator<java.lang.Comparable>

Evaluates numeric expressions.
Can be used for BTGOperands, the value provider of which returns a subtype of Number.

See Also:

OperandValueProvider.getValueType(de.hybris.platform.btg.model.BTGOperandModel)

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	EQUALS
static java.lang.String	GREATER_OR_EQUALS
static java.lang.String	GREATER_THAN
static java.lang.String	LESS_OR_EQUALS
static java.lang.String	LESS_THAN
static java.lang.String	NOT_EQUALS

Fields inherited from class de.hybris.platform.btg.condition.impl.AbstractExpressionEvaluator

allowLeftNull, LEFT_OP_MISSING, LEFT_OP_NOT_SUPPORTED, OPERATOR_MISSING, OPERATOR_NOT_SUPPORTED, RIGHT_OP_MISSING, RIGHT_OP_NOT_ALLOWED, RIGHT_OP_NOT_SUPPORTED

Constructor Summary

Constructors

Constructor and Description
NumericExpressionEvaluator(java.lang.Class<? extends java.lang.Number> numberType) Constructor

Method Summary

Modifier and Type	Method and Description
boolean	evaluateTerm(java.lang.Object leftOperand, java.lang.String operator, java.lang.Object rightOperand) Evaluates this expression without any error or validation checking.
protected java.lang.String	getEqualOperator()
protected java.lang.String	getGreaterThanOperator()
protected java.lang.String	getGreaterThanOrEqualOperator()
protected java.lang.String	getLessThanOperator()
protected java.lang.String	getLessThanOrEqualOperator()
protected java.lang.String	getNotEqualOperator()
java.util.Collection<java.lang.Class>	getSupportedRightTypes(java.lang.String operator) Returns a Collection of types which are supported as right Operand.

Methods inherited from class de.hybris.platform.btg.condition.impl.AbstractComparableExpressionEvaluator

evaluateComparable

Methods inherited from class de.hybris.platform.btg.condition.impl.AbstractExpressionEvaluator

addSupportedOperator, addSupportedOperator, addSupportedOperator, evaluate, getLeftType, getSupportedOperators, isSupported, isSupported

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

LESS_THAN

public static final java.lang.String LESS_THAN

See Also:

Constant Field Values

LESS_OR_EQUALS

public static final java.lang.String LESS_OR_EQUALS

See Also:

Constant Field Values

GREATER_THAN

public static final java.lang.String GREATER_THAN

See Also:

Constant Field Values

GREATER_OR_EQUALS

public static final java.lang.String GREATER_OR_EQUALS

See Also:

Constant Field Values

EQUALS

public static final java.lang.String EQUALS

See Also:

Constant Field Values

NOT_EQUALS

public static final java.lang.String NOT_EQUALS

See Also:

Constant Field Values

Constructor Detail

NumericExpressionEvaluator

public NumericExpressionEvaluator(java.lang.Class<? extends java.lang.Number> numberType)

Constructor

Parameters:

numberType - - Class extending Number

Method Detail

getSupportedRightTypes

public java.util.Collection<java.lang.Class> getSupportedRightTypes(java.lang.String operator)

Description copied from interface: ExpressionEvaluator

Returns a Collection of types which are supported as right Operand.

Returns 'null' when requested operator is not supported. Returns an empty Collection when operator is supported but does not allow a right operand. In any other case returns a Collection of types which are supported for passed operator.

Specified by:

getSupportedRightTypes in interface ExpressionEvaluator

Overrides:

getSupportedRightTypes in class AbstractExpressionEvaluator

Parameters:

operator - the operator which shall be applied

Returns:

Collection of supported types

evaluateTerm

public boolean evaluateTerm(java.lang.Object leftOperand,
                            java.lang.String operator,
                            java.lang.Object rightOperand)

Description copied from class: AbstractExpressionEvaluator

Evaluates this expression without any error or validation checking.

Specified by:

evaluateTerm in class AbstractExpressionEvaluator

Parameters:

leftOperand - value for left operand

operator - operator symbol

rightOperand - value for right operand

Returns:

true when expression evaluates to true

getLessThanOperator

protected java.lang.String getLessThanOperator()

Specified by:

getLessThanOperator in class AbstractComparableExpressionEvaluator<java.lang.Comparable>

getLessThanOrEqualOperator

protected java.lang.String getLessThanOrEqualOperator()

Specified by:

getLessThanOrEqualOperator in class AbstractComparableExpressionEvaluator<java.lang.Comparable>

getGreaterThanOperator

protected java.lang.String getGreaterThanOperator()

Specified by:

getGreaterThanOperator in class AbstractComparableExpressionEvaluator<java.lang.Comparable>

getGreaterThanOrEqualOperator

protected java.lang.String getGreaterThanOrEqualOperator()

Specified by:

getGreaterThanOrEqualOperator in class AbstractComparableExpressionEvaluator<java.lang.Comparable>

getEqualOperator

protected java.lang.String getEqualOperator()

Specified by:

getEqualOperator in class AbstractComparableExpressionEvaluator<java.lang.Comparable>

getNotEqualOperator

protected java.lang.String getNotEqualOperator()

Specified by:

getNotEqualOperator in class AbstractComparableExpressionEvaluator<java.lang.Comparable>