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The AWS SDK for Java exposes a high-level API that simplifies multipart upload (see Uploading Objects Using Multipart Upload API). You can upload
data from a file or a stream. You can optionally set advanced options, such as the part
size you want to use for the multipart upload, or the number of threads you want to use
when uploading the parts concurrently. You can also set optional object properties, the
storage class, or ACL. You use the
PutObjectRequest and the
TransferManagerConfiguration classes to set these advanced
TransferManager class of the Java API provides the
high-level API for you to upload data.
TransferManager attempts to use multiple threads
to upload multiple parts of a single upload at once. When dealing with large content
sizes and high bandwidth, this can have a significant increase on throughput.
In addition to file upload functionality, the
provides a method for you to abort multipart upload in progress. You must provide a
Date value, and then the API aborts all the multipart uploads
that were initiated before the specified date.