42 lines
1.5 KiB
Java
42 lines
1.5 KiB
Java
/*
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* Copyright (c) 2015-present, Parse, LLC.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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package com.parse;
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import java.io.InputStream;
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/**
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* A {@code GetDataStreamCallback} is used to run code after a {@link ParseFile} fetches its data on
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* a background thread.
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* <p/>
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* The easiest way to use a {@code GetDataStreamCallback} is through an anonymous inner class.
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* Override the {@code done} function to specify what the callback should do after the fetch is
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* complete. The {@code done} function will be run in the UI thread, while the fetch happens in a
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* background thread. This ensures that the UI does not freeze while the fetch happens.
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* <p/>
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* <pre>
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* file.getDataStreamInBackground(new GetDataStreamCallback() {
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* public void done(InputSteam input, ParseException e) {
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* // ...
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* }
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* });
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* </pre>
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*/
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public interface GetDataStreamCallback extends ParseCallback2<InputStream, ParseException> {
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/**
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* Override this function with the code you want to run after the fetch is complete.
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*
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* @param input
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* The data that was retrieved, or {@code null} if it did not succeed.
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* @param e
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* The exception raised by the fetch, or {@code null} if it succeeded.
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*/
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@Override
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void done(InputStream input, ParseException e);
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}
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