com.saperion.database.query.predicates

Class IsEmpty<ElementType,CollectionType extends Collection<ElementType>>

java.lang.Object

com.saperion.database.query.UnaryOperator<CollectionType,Boolean>

com.saperion.database.query.predicates.IsEmpty<ElementType,CollectionType>

All Implemented Interfaces:

QueryExpression<Boolean>, Serializable

public class IsEmpty<ElementType,CollectionType extends Collection<ElementType>>
extends UnaryOperator<CollectionType,Boolean>

A QueryExpression that checks whether its operand is an empty list.

Author:

jschwarz

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
static String	OPERATOR_IDENTIFIER

Constructor Summary

Constructors

Constructor and Description
IsEmpty(QueryExpression<? extends CollectionType> operand)

Method Summary

Methods inherited from class com.saperion.database.query.UnaryOperator

appendQueryParameters, asQueryLanguage, precedence, queryStringSizeGuess, toString

Methods inherited from class java.lang.Object

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

Field Detail

OPERATOR_IDENTIFIER

public static final String OPERATOR_IDENTIFIER

See Also:

Constant Field Values

Constructor Detail

IsEmpty

public IsEmpty(QueryExpression<? extends CollectionType> operand)