/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.ignite.internal.client;
/**
* Defines predicate construct. Predicate like closure is a first-class function
* that is defined with (or closed over) its free variables that are bound to the closure
* scope at execution.
* <h2 class="header">Thread Safety</h2>
* Note that this interface does not impose or assume any specific thread-safety by its
* implementations. Each implementation can elect what type of thread-safety it provides,
* if any.
* @param <E1> Type of the free variable, i.e. the element the predicate is called on.
*/
public interface GridClientPredicate<E1> {
/**
* Predicate body.
*
* @param e Bound free variable, i.e. the element the closure is called or closed on.
* @return Return value.
*/
public boolean apply(E1 e);
}