001/* 002 * Copyright (c) 2007-2015 Concurrent, Inc. All Rights Reserved. 003 * 004 * Project and contact information: http://www.cascading.org/ 005 * 006 * This file is part of the Cascading project. 007 * 008 * Licensed under the Apache License, Version 2.0 (the "License"); 009 * you may not use this file except in compliance with the License. 010 * You may obtain a copy of the License at 011 * 012 * http://www.apache.org/licenses/LICENSE-2.0 013 * 014 * Unless required by applicable law or agreed to in writing, software 015 * distributed under the License is distributed on an "AS IS" BASIS, 016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 017 * See the License for the specific language governing permissions and 018 * limitations under the License. 019 */ 020 021package cascading.operation; 022 023import cascading.tuple.TupleEntry; 024 025/** Interface ValueAssertionCall provides access to the current {@link ValueAssertion} invocation arguments. */ 026public interface ValueAssertionCall<C> extends OperationCall<C> 027 { 028 /** 029 * Returns {@link TupleEntry} of argument values. 030 * <p/> 031 * Note that the returned TupleEntry should not be cached (stored in a Collection), nor should the underlying Tuple 032 * instance. Where possible Cascading will re-use both TupleEntry and Tuple instances. 033 * <p/> 034 * To get a safe copy that can be cached, use {@link TupleEntry#getTupleCopy()}. 035 * 036 * @return TupleEntry 037 */ 038 TupleEntry getArguments(); 039 }