Functions.java

/*
 * Copyright (c) 2002-2017 "Neo Technology,"
 * Network Engine for Objects in Lund AB [http://neotechnology.com]
 *
 * This file is part of Neo4j.
 *
 * Licensed 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.neo4j.driver.v1.util;

/**
 * Generic function utilities.
 * @since 1.0
 */
public class Functions
{
    @SuppressWarnings( "unchecked" )
    public static <T> Function<T,T> identity()
    {
        return IDENTITY;
    }

    private static final Function IDENTITY = new Function()
    {
        @Override
        public Object apply( Object o )
        {
            return o;
        }
    };
}