com.hazelcast.query

Interface Predicate<K,V>

Type Parameters:

K - the type of keys the predicate operates on.

V - the type of values the predicate operates on.

All Superinterfaces:

Serializable

All Known Subinterfaces:

IndexAwarePredicate<K,V>

All Known Implementing Classes:

AbstractIndexAwarePredicate, AbstractPredicate, AndPredicate, BetweenPredicate, EqualPredicate, FalsePredicate, GreaterLessPredicate, ILikePredicate, InPredicate, InstanceOfPredicate, LikePredicate, NotEqualPredicate, NotPredicate, OrPredicate, PagingPredicate, PartitionPredicate, PredicateBuilder, RegexPredicate, SkipIndexPredicate, SqlPredicate, TruePredicate

public interface Predicate<K,V>
extends Serializable

Represents a map entry predicate. Implementations of this interface are basic building blocks for performing queries on map entries.

Implementations must be thread-safe, since the apply(java.util.Map.Entry<K, V>) method may be called by multiple threads concurrently.

Method Summary

Modifier and Type	Method and Description
boolean	apply(Map.Entry<K,V> mapEntry) Applies this predicate to the given map entry.

Method Detail

apply

boolean apply(Map.Entry<K,V> mapEntry)

Applies this predicate to the given map entry.

Implementations must be thread-safe, since this method may be called by multiple threads concurrently.

Parameters:

mapEntry - the map entry to apply this predicate to.

Returns:

true if the given map entry matches this predicate, false otherwise.