/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. 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 frame.upload;
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import java.io.IOException;
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import frame.upload.FileItemStream;
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import frame.upload.FileUploadBase;
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import frame.upload.FileUploadException;
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import frame.upload.RequestContext;
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/**
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* An iterator, as returned by
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* {@link FileUploadBase#getItemIterator(RequestContext)}.
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*/
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public interface FileItemIterator {
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/**
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* Returns, whether another instance of {@link FileItemStream}
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* is available.
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* @throws FileUploadException Parsing or processing the
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* file item failed.
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* @throws IOException Reading the file item failed.
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* @return True, if one or more additional file items
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* are available, otherwise false.
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*/
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boolean hasNext() throws FileUploadException, IOException;
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/**
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* Returns the next available {@link FileItemStream}.
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* @throws java.util.NoSuchElementException No more items are available. Use
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* {@link #hasNext()} to prevent this exception.
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* @throws FileUploadException Parsing or processing the
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* file item failed.
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* @throws IOException Reading the file item failed.
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* @return FileItemStream instance, which provides
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* access to the next file item.
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*/
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FileItemStream next() throws FileUploadException, IOException;
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}
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