Package 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:
PagingPredicate<K,​V>, PartitionPredicate<K,​V>, PredicateBuilder
Functional Interface:
This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
@FunctionalInterface
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 Description
    boolean apply​(Map.Entry<K,​V> mapEntry)
    Applies this predicate to the given map entry.

  • Method Details

    • 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.