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The AWS Java SDK for Amazon S3 module holds the client classes that are used for communicating with Amazon Simple Storage Service
/*
* Copyright 2010-2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License").
* You may not use this file except in compliance with the License.
* A copy of the License is located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed
* on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.amazonaws.services.s3.model;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.List;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.internal.S3RequesterChargedResult;
/**
* Contains the results of listing the versions in an Amazon S3 bucket,
* including a list of {@link S3VersionSummary} objects describing each version,
* information describing if this is a complete or partial listing, and the
* original request parameters.
*
* @see AmazonS3#listVersions(String, String)
* @see AmazonS3#listVersions(ListVersionsRequest)
* @see AmazonS3#listNextBatchOfVersions(VersionListing)
*/
public class VersionListing implements Serializable, S3RequesterChargedResult {
/** A list of summary information describing the versions stored in the bucket */
private List versionSummaries =
new ArrayList();
/**
* A list of the common prefixes included in this version listing - common
* prefixes will only be populated for requests that specified a delimiter
*/
private List commonPrefixes = new ArrayList();
/** The name of the Amazon S3 bucket containing the listed versions */
private String bucketName;
/**
* The key marker to use in order to request the next page of results - only
* populated if the isTruncated member indicates that this version listing
* is truncated
*/
private String nextKeyMarker;
/**
* The version ID marker to use in order to request the next page of results
* - only populated if the isTruncated member indicates that this version
* listing is truncated
*/
private String nextVersionIdMarker;
/**
* Indicates if this is a complete listing, or if the caller needs to make
* additional requests to Amazon S3 to see the full object listing for an S3
* bucket
*/
private boolean isTruncated;
/* Original Request Parameters */
/**
* The prefix parameter originally specified by the caller when this version
* listing was returned
*/
private String prefix;
/**
* The key marker parameter originally specified by the caller when this
* version listing was returned
*/
private String keyMarker;
/**
* The version ID marker parameter originally specified by the caller when
* this version listing was returned
*/
private String versionIdMarker;
/**
* The maxKeys parameter originally specified by the caller when this
* version listing was returned
*/
private int maxKeys;
/**
* The delimiter parameter originally specified by the caller when this
* version listing was returned
*/
private String delimiter;
/**
* The encodingType parameter originally specified by the caller when this
* version listing was returned.
*/
private String encodingType;
/**
* Indicate if the requester is charged for conducting this operation from
* Requester Pays Buckets.
*/
private boolean isRequesterCharged;
/**
* Gets the list of version summaries describing the versions stored in
* the associated S3 bucket. Callers should remember that listings for large
* buckets can be truncated for performance reasons, so callers might need
* to make additional calls to
* {@link AmazonS3#listVersions(ListVersionsRequest)} to get additional
* results. Callers should always check {@link VersionListing#isTruncated()} to
* determine if a listing is truncated or not.
*
* @return A list of the version summaries describing the versions stored in
* the associated S3 bucket.
*/
public List getVersionSummaries() {
return this.versionSummaries;
}
/**
* For internal use only. Sets the list of version
* summaries describing the versions stored in the associated S3 bucket.
*
* @param versionSummaries
* The version summaries describing the versions stored in the
* associated S3 bucket.
*/
public void setVersionSummaries(List versionSummaries) {
this.versionSummaries = versionSummaries;
}
/**
* Gets the common prefixes included in this version listing. Common
* prefixes are only present if a delimiter was specified in the original
* request.
*
* Each common prefix represents a set of keys in the S3 bucket that have
* been condensed and omitted from the version summary results. This allows
* applications to organize and browse their keys hierarchically,
* similar to how a file system organizes files
* into directories.
*
* For example, consider a bucket that contains the keys:
*
* - "foo/bar/baz"
* - "foo/bar/bash"
* - "foo/bar/bang"
* - "foo/boo"
*
* If calling listVersions with a prefix value of "foo/" and a delimiter
* value of "/" on this
* bucket, the returned VersionListing will contain one entry in the
* common prefixes list ("foo/bar/") and none of the keys beginning with
* that common prefix will be included in the version summaries list.
*
*
* @return The list of common prefixes included in this version listing.
* Returns an empty list if no common prefixes are found.
*/
public List getCommonPrefixes() {
return commonPrefixes;
}
/**
* For internal use only. Sets the common prefixes for this
* version listing, representing the key prefixes that were rolled up
* because of the request's delimiter parameter.
*
* @param commonPrefixes
* The common prefixes for this version listing.
*/
public void setCommonPrefixes(List commonPrefixes) {
this.commonPrefixes = commonPrefixes;
}
/**
* Gets the name of the Amazon S3 bucket containing the versions listed
* in this {@link VersionListing}.
*
* @return The name of the Amazon S3 bucket containing the versions listed
* in this S3VersionListing.
*/
public String getBucketName() {
return bucketName;
}
/**
* For internal use only. Sets the name of the Amazon S3
* bucket containing the versions listed in this S3VersionListing.
*
* @param bucketName
* The name of the Amazon S3 bucket containing the versions
* listed in this S3VersionListing.
*/
public void setBucketName(String bucketName) {
this.bucketName = bucketName;
}
/**
* The prefix parameter originally used to request this version listing, or
* null if no prefix was specified. All object keys included in this version
* listing start with the specified prefix.
*
* @return The prefix parameter originally used to request this version
* listing, or null if no prefix was specified.
*/
public String getPrefix() {
return prefix;
}
/**
* For internal use only. Sets the prefix parameter
* originally used to request this version listing.
*
* @param prefix
* The prefix parameter originally used to request this version
* listing.
*/
public void setPrefix(String prefix) {
this.prefix = prefix;
}
/**
* The key marker parameter originally used to request this version listing,
* or null if no key marker was specified. If specified, all object keys
* included in this version listing will occur lexically (alphabetically)
* after the specified key marker.
*
* @return The key marker parameter originally used to request this version
* listing, or null if no key marker was specified.
*/
public String getKeyMarker() {
return keyMarker;
}
/**
* For internal use only. Sets the key marker parameter
* originally used to request this version listing.
*
* @param keyMarker
* The key marker parameter originally used to request this
* version listing.
*/
public void setKeyMarker(String keyMarker) {
this.keyMarker = keyMarker;
}
/**
* Gets the value of the version ID marker parameter used to request this version
* listing. Returns null if no version ID marker was otherwise specified.
*
* @return The version ID marker parameter originally used to request this
* version listing. Returns null if no version ID marker otherwise was specified.
*/
public String getVersionIdMarker() {
return versionIdMarker;
}
/**
* For internal use only. Sets the version ID marker
* parameter originally used to request this version listing.
*
* @param versionIdMarker
* The version ID marker parameter originally used to request
* this version listing.
*/
public void setVersionIdMarker(String versionIdMarker) {
this.versionIdMarker = versionIdMarker;
}
/**
* Gets the value of the maxKeys parameter used to request this version
* listing. Returns the default maxKeys value provided by Amazon S3 if no
* parameter value was otherwise specified.
*
* The maxKeys parameter limits the number
* of versions included in this version listing. A version listing will
* never contain more versions than indicated by maxKeys , but can
* contain less.
*
*
* @return The value of the maxKeys parameter used to request this version
* listing. Returns the default maxKeys value provided by Amazon S3 if no
* parameter value was otherwise specified.
*/
public int getMaxKeys() {
return maxKeys;
}
/**
* For internal use only. Sets the maxKeys parameter
* originally used to request this object listing, or the default maxKeys
* applied by Amazon S3 if the requester didn't specify a value.
*
* @param maxKeys
* The maxKeys parameter originally used to request this version
* listing, or the default maxKeys value applied by Amazon S3 if
* the requester didn't specify a value.
*/
public void setMaxKeys(int maxKeys) {
this.maxKeys = maxKeys;
}
/**
* Gets the value of the delimiter parameter used to request this version
* listing. Returns null if no parameter value was otherwise specified.
*
* The delimiter value allows
* callers to condense S3 keys into common prefix listings. For example, if
* a caller specifies a delimiter of "/" (a common used value for
* delimiter), then any keys that contain a common prefix between the start
* of the key and the first occurrence of "/" will not be included in the
* list of object summaries; instead, the common prefixes list will have
* one entry for the common prefix.
*
*
* @return The delimiter parameter originally used to request this version
* listing, or null if none was specified.
*/
public String getDelimiter() {
return delimiter;
}
/**
* For internal use only. Sets the delimiter parameter
* originally used to request this version listing.
*
* @param delimiter
* The delimiter parameter originally used to request this
* version listing.
*/
public void setDelimiter(String delimiter) {
this.delimiter = delimiter;
}
/**
* Gets the key marker to use in
* the next listVersions request in order to obtain the next page of results.
* Returns null if the version listing is not truncated.
* For truncated requests,
* this value is equal to the greatest (lexicographically) value of the
* object keys included in this listing.
*
* @return The key marker to use in
* the next listVersions request in order to obtain the next page of results.
* Returns null if the version listing is not truncated.
*
* @see VersionListing#isTruncated()
*/
public String getNextKeyMarker() {
return nextKeyMarker;
}
/**
* For internal use only. Sets the key marker to use in the
* next listVersions request in order to see the next page of results for a
* truncated version listing.
*
* @param marker
* The key marker to use in the next listVersions request in
* order to see the next page of results for a truncated version
* listing.
*/
public void setNextKeyMarker(String marker) {
this.nextKeyMarker = marker;
}
/**
* Gets the version ID marker to
* use in the next listVersions request in order to obtain the next page of
* results. Returns null if the version listing is not truncated.
*
* @return The version ID marker to use in the next listVersions request in
* order to see the next page of results.
* Returns null if the version listing is not truncated.
*
* @see VersionListing#isTruncated()
*/
public String getNextVersionIdMarker() {
return nextVersionIdMarker;
}
/**
* For internal use only. Sets the version ID marker to use
* in the next listVersions request in order to see the next page of results
* for a truncated version listing.
*
* @param marker
* The version ID marker to use in the next listVersions request
* in order to obtain the next page of results for a truncated
* version listing.
*/
public void setNextVersionIdMarker(String marker) {
this.nextVersionIdMarker = marker;
}
/**
* Gets whether or not the version listing
* is complete, indicating if additional calls to Amazon S3 are needed to obtain
* complete version listing results.
*
* @return The value true if this version listing is not complete, indicating
* additional calls to Amazon S3 are needed to obtain
* complete version listing results. Returns the value false if otherwise.
*/
public boolean isTruncated() {
return isTruncated;
}
/**
* For internal use only. Sets the truncated property for
* this version listing, indicating if this is a complete listing or not and
* whether the caller needs to make additional calls to S3 to get more
* version summaries.
*
* @param isTruncated
* True if this version listing is not complete and the
* caller needs to make additional S3 calls to get additional
* version summaries.
*/
public void setTruncated(boolean isTruncated) {
this.isTruncated = isTruncated;
}
/**
* Gets the encoding type used by Amazon S3 to encode object key names in
* the XML response. If you specify encodingType request
* parameter, Amazon S3 includes this element in the response, and returns
* encoded key name values in the following response elements:
* KeyMarker, NextKeyMarker, Prefix, Key, Delimiter.
*
* @return Null if encodingType is not specified
* in the request parameter.
*/
public String getEncodingType() {
return encodingType;
}
/**
* For internal use only. Sets the encoding type used by Amazon S3 to encode
* object key names in the XML response.
*
* @param encodingType
* Null if encodingType is not
* specified in the request parameter.
*/
public void setEncodingType(String encodingType) {
this.encodingType = encodingType;
}
@Override
public boolean isRequesterCharged() {
return isRequesterCharged;
}
@Override
public void setRequesterCharged(boolean isRequesterCharged) {
this.isRequesterCharged = isRequesterCharged;
}
}