1 /* 2 * Copyright 2019 Google Inc. All rights reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.flatbuffers; 18 19 import static com.google.flatbuffers.Constants.*; 20 import java.nio.ByteBuffer; 21 import java.nio.ByteOrder; 22 import java.nio.charset.Charset; 23 24 /** 25 * Helper type for accessing vector of unions. 26 */ 27 public final class UnionVector extends BaseVector { 28 /** 29 * Assigns vector access object to vector data. 30 * 31 * @param _vector Start data of a vector. 32 * @param _element_size Size of a vector element. 33 * @param _bb Table's ByteBuffer. 34 * @return Returns current vector access object assigned to vector data whose offset is stored at 35 * `vector`. 36 */ __assign(int _vector, int _element_size, ByteBuffer _bb)37 public UnionVector __assign(int _vector, int _element_size, ByteBuffer _bb) { 38 __reset(_vector, _element_size, _bb); return this; 39 } 40 41 42 /** 43 * Initialize any Table-derived type to point to the union at the given `index`. 44 * 45 * @param obj A `Table`-derived type that should point to the union at `index`. 46 * @param j An `int` index into the union vector. 47 * @return Returns the Table that points to the union at `index`. 48 */ get(Table obj, int j)49 public Table get(Table obj, int j) { 50 return Table.__union(obj, __element(j), bb); 51 } 52 } 53