de.hybris.platform.btg.condition.impl

Class AbstractCollectionExpressionEvaluator

java.lang.Object

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

de.hybris.platform.btg.condition.impl.AbstractCollectionExpressionEvaluator

All Implemented Interfaces:

ExpressionEvaluator

Direct Known Subclasses:

AbstractCollectionDistinctExpressionEvaluator, KeyValuePairCollectionExpressionEvaluator, PlainCollectionExpressionEvaluator, RegExpCollectionExpressionEvaluator

public abstract class AbstractCollectionExpressionEvaluator
extends AbstractExpressionEvaluator

Basic functionality to evaluate collections.

The following operators are supported:

• contains
• containsAny
• notContains
• size
• isEmpty

Field Summary

Fields

Modifier and Type	Field and Description
protected static String	CONTAINS_ALL
protected static String	CONTAINS_ANY
protected static String	IS_EMPTY
protected static String	NOT_CONTAINS
protected static String	SIZE

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
AbstractCollectionExpressionEvaluator()
AbstractCollectionExpressionEvaluator(Map<String,Set<Class>> operatorMap)

Method Summary

Modifier and Type	Method and Description
protected abstract boolean	checkIfContainsAll(Object rightOperand, Collection leftOperand) Returns true if left operand Collection contains the right operand, or all of right operand elements if the right operand is a collection.
protected abstract boolean	checkIfContainsAny(Object rightOperand, Collection leftOperand) Returns true left operand Collection contains the right operand or any of right operand elements, if the right operand is a collection.
protected boolean	checkIfEmpty(Object rightOperand, Collection operand)
protected boolean	checkIfNotContainsAny(Object rightOperand, Collection operand) Returns true if left operand Collection does not contain the right operand, or any of right operand elements if the right operand is a collection.
protected boolean	checkIfSize(Object rightOperand, Collection operand)
boolean	evaluateTerm(Object leftOperand, String operator, Object rightOperand) Evaluates this expression without any error or validation checking.

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

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

Methods inherited from class java.lang.Object

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

Field Detail

CONTAINS_ALL

protected static final String CONTAINS_ALL

See Also:

Constant Field Values

CONTAINS_ANY

protected static final String CONTAINS_ANY

See Also:

Constant Field Values

NOT_CONTAINS

protected static final String NOT_CONTAINS

See Also:

Constant Field Values

SIZE

protected static final String SIZE

See Also:

Constant Field Values

IS_EMPTY

protected static final String IS_EMPTY

See Also:

Constant Field Values

Constructor Detail

AbstractCollectionExpressionEvaluator

public AbstractCollectionExpressionEvaluator()

AbstractCollectionExpressionEvaluator

public AbstractCollectionExpressionEvaluator(Map<String,Set<Class>> operatorMap)

Method Detail

evaluateTerm

public boolean evaluateTerm(Object leftOperand,
                            String operator,
                            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

checkIfSize

protected boolean checkIfSize(Object rightOperand,
                              Collection operand)

checkIfEmpty

protected boolean checkIfEmpty(Object rightOperand,
                               Collection operand)

checkIfContainsAny

protected abstract boolean checkIfContainsAny(Object rightOperand,
                                              Collection leftOperand)

Returns true left operand Collection contains the right operand or any of right operand elements, if the right operand is a collection. In other words it returns true if the two collections has common elements (intersection of left and right is not empty)

checkIfContainsAll

protected abstract boolean checkIfContainsAll(Object rightOperand,
                                              Collection leftOperand)

Returns true if left operand Collection contains the right operand, or all of right operand elements if the right operand is a collection. In other words it returns true if the right is a subset of the left.

checkIfNotContainsAny

protected boolean checkIfNotContainsAny(Object rightOperand,
                                        Collection operand)

Returns true if left operand Collection does not contain the right operand, or any of right operand elements if the right operand is a collection. In other words it returns true if the two elements has no common elements (intersection of left and right is empty).