Java tutorial
/* * Copyright 2013 Lyor Goldstein * * 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.apache.commons.collections15; import org.apache.commons.lang3.ExtendedValidate; /** * @param <T> Type of closure argument * @author Lyor G. */ public abstract class AbstractExtendedClosure<T> implements ExtendedClosure<T> { private final Class<T> argumentType; protected AbstractExtendedClosure(Class<T> argType) { argumentType = ExtendedValidate.notNull(argType, "No argument type specified"); } @Override public final Class<T> getArgumentType() { return argumentType; } }