61 lines
1.8 KiB
Java
61 lines
1.8 KiB
Java
/*
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* Copyright 2019 Google Inc. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.flatbuffers;
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import static com.google.flatbuffers.Constants.*;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.charset.Charset;
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/**
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* Helper type for accessing vector of signed or unsigned 8-bit values.
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*/
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public final class ByteVector extends BaseVector {
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/**
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* Assigns vector access object to vector data.
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*
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* @param vector Start data of a vector.
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* @param bb Table's ByteBuffer.
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* @return Returns current vector access object assigned to vector data whose offset is stored at
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* `vector`.
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*/
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public ByteVector __assign(int vector, ByteBuffer bb) {
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__reset(vector, Constants.SIZEOF_BYTE, bb); return this;
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}
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/**
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* Reads the byte at the given index.
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*
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* @param j The index from which the byte will be read.
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* @return the 8-bit value at the given index.
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*/
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public byte get(int j) {
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return bb.get(__element(j));
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}
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/**
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* Reads the byte at the given index, zero-extends it to type int, and returns the result,
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* which is therefore in the range 0 through 255.
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*
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* @param j The index from which the byte will be read.
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* @return the unsigned 8-bit at the given index.
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*/
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public int getAsUnsigned(int j) {
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return (int) get(j) & 0xFF;
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}
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}
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