com.google.instrumentation.common.Function Maven / Gradle / Ivy
/*
* Copyright 2016, Google Inc.
* 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 com.google.instrumentation.common;
/**
* Used to specify matching functions for use encoding tagged unions (i.e. sum types) in Java. See
* {@link com.google.instrumentation.stats.ViewDescriptor} for an example of it's use.
*
* Note: This class is based on the java.util.Function class added in Java 1.8. We cannot use
* the Function from Java 1.8 because this library is Java 1.6 compatible.
*/
public interface Function {
B apply(A arg);
}