Predicate.java

/*
 * 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
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 * the License.
 */
package org.apache.jackrabbit.spi.commons.iterator;

/**
 * Type safe counter part of {@link org.apache.commons.collections.Predicate}.
 *
 * @param <T> type of values this predicate is defined on
 */
public interface Predicate<T> {

    /**
     * Use the specified parameter to perform a test that returns true or false.
     *
     * @param arg  the predicate to evaluate, should not be changed
     * @return true or false
     */
    public boolean evaluate(T arg);
}