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:
    java.io.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 java.io.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

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      boolean apply​(java.util.Map.Entry<K,​V> mapEntry)
      Applies this predicate to the given map entry.

    • Method Detail

      • apply

        boolean apply​(java.util.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.