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/*
 * Copyright 2011-2017 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;

/**
 * Results of a listing of objects from an S3 bucket.
 */
public class ListObjectsV2Result implements Serializable {

    /** A list of summary information describing the objects stored in the bucket */
    private List objectSummaries = new ArrayList();

    /**
     * A list of the common prefixes included in this object listing - common
     * prefixes will only be populated for requests that specified a delimiter
     */
    private List commonPrefixes = new ArrayList();

    /**
     * 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;

    /** The name of the Amazon S3 bucket containing the listed objects */
    private String bucketName;

    /** KeyCount is the number of keys returned with this response */
    private int keyCount;

    /**
     * NextContinuationToken is sent when isTruncated is true meaning there are
     * more keys in the bucket that can be listed. The next list requests to Amazon
     * S3 can be continued by providing this NextContinuationToken.
     */
    private String nextContinuationToken;

    /* Original Request Parameters */

    /**
     * The prefix parameter originally specified by the caller when this object
     * listing was returned
     */
    private String prefix;

    /**
     * The delimiter parameter originally specified by the caller when this
     * object listing was returned
     */
    private String delimiter;

    /**
     * The maxKeys parameter originally specified by the caller when this object
     * listing was returned
     */
    private int maxKeys;

    /**
     * The encodingType parameter originally specified by the caller when this
     * object listing was returned.
     */
    private String encodingType;

    /**
     * Optional parameter which allows list to be continued from a specific point.
     * ContinuationToken is provided in truncated list results.
     */
    private String continuationToken;

    /**
     * Optional parameter indicating where you want Amazon S3 to start the object listing
     * from.  This can be any key in the bucket.
     */
    private String startAfter;

    /**
     * Gets whether or not this object listing is complete.
     *
     * @return The value true if the object listing is not complete.
     *         Returns the value false if otherwise.
     *         When returning true,
     *         additional calls to Amazon S3 may be needed in order to
     *         obtain more results.
     */
    public boolean isTruncated() {
        return isTruncated;
    }

    /**
     * For internal use only.  Sets the truncated property for
     * this object listing, indicating if this is a complete listing or not and
     * whether the caller needs to make additional calls to S3 to get more
     * object summaries.
     *
     * @param isTruncated
     *            The value true if the object listing is not complete.
     *            The value false if otherwise.
     */
    public void setTruncated(boolean isTruncated) {
        this.isTruncated = isTruncated;
    }

    /**
     * Gets the name of the Amazon S3 bucket containing the objects listed in
     * this {@link ListObjectsV2Result}.
     *
     * @return The name of the Amazon S3 bucket containing the objects listed in
     *         this {@link ListObjectsV2Result}.
     */
    public String getBucketName() {
        return bucketName;
    }

    /**
     * For internal use only.
     * Sets the name of the Amazon S3
     * bucket containing the objects listed in this {@link ListObjectsV2Result}.
     *
     * @param bucketName
     *            The name of the Amazon S3 bucket containing the objects listed
     *            in this {@link ListObjectsV2Result}.
     */
    public void setBucketName(String bucketName) {
        this.bucketName = bucketName;
    }

    /**
     * Gets the prefix parameter originally used to request this object listing, or
     * null if no prefix was specified.
     * All objects and common prefixes included
     * in this object listing start with the specified prefix.
     *
     * @return The prefix parameter originally used to request this object
     *         listing. Returns null if no prefix was specified.
     */
    public String getPrefix() {
        return prefix;
    }

    /**
     * For internal use only.
     * Sets the prefix parameter
     * originally used to request this object listing.
     *
     * @param prefix
     *            The prefix parameter originally used to request this object
     *            listing.
     */
    public void setPrefix(String prefix) {
        this.prefix = prefix;
    }

    /**
     * Gets the delimiter parameter originally used to request this object
     * listing, or null if no delimiter 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), 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 object * listing. Returns null if no delimiter was specified. */ public String getDelimiter() { return delimiter; } /** * For internal use only. Sets the delimiter parameter * originally used to request this object listing. * * @param delimiter * The delimiter parameter originally used to request this object * listing. */ public void setDelimiter(String delimiter) { this.delimiter = delimiter; } /** * 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: * Delimiter, Marker, Prefix, * NextMarker, Key. * * @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; } /** * Gets the optional continuation token. Continuation token allows a list to be * continued from a specific point. ContinuationToken is provided in truncated list results. * * @return The optional continuation token associated with this request. */ public String getContinuationToken() { return continuationToken; } /** * Sets the optional continuation token. Continuation token allows a list to be * continued from a specific point. ContinuationToken is provided in truncated list results. * * @param continuationToken * The optional continuation token to associate with this request. */ public void setContinuationToken(String continuationToken) { this.continuationToken = continuationToken; } /** * Gets the optional NextContinuationToken. * NextContinuationToken is sent when isTruncated is true meaning there are * more keys in the bucket that can be listed. The next list requests to Amazon * S3 can be continued by providing this NextContinuationToken. * * @return The optional NextContinuationToken parameter. */ public String getNextContinuationToken() { return nextContinuationToken; } /** * Sets the optional NextContinuationToken. * NextContinuationToken is sent when isTruncated is true meaning there are * more keys in the bucket that can be listed. The next list requests to Amazon * S3 can be continued by providing this NextContinuationToken. * * @param nextContinuationToken * The optional NextContinuationToken parameter to associate with this request. * * @return The optional NextContinuationToken parameter. */ public void setNextContinuationToken(String nextContinuationToken) { this.nextContinuationToken = nextContinuationToken; } /** * Gets the number of keys returned with this response. * * @return number of keys returned with this response. */ public int getKeyCount() { return keyCount; } /** * Sets the number of keys returned with this response. * * @param keyCount * The number of keys that were returned with this response. */ public void setKeyCount(int keyCount) { this.keyCount = keyCount; } /** * Gets the optional maxKeys parameter indicating the maximum number of keys to * include in the response. Amazon S3 might return fewer keys than specified, but will * never return more. Even if the optional parameter is not specified, * Amazon S3 will limit the number of results in the response. * * @return The optional parameter indicating the maximum number of keys to * include in the response. */ public int getMaxKeys() { return maxKeys; } /** * Sets the optional maxKeys parameter indicating the maximum number of keys to * include in the response. * * @param maxKeys * The optional parameter indicating the maximum number of keys * to include in the response. */ public void setMaxKeys(int maxKeys) { this.maxKeys = maxKeys; } /** * Returns optional parameter indicating where you want Amazon S3 to start the object * listing from. This can be any key in the bucket. * * @return the optional startAfter parameter */ public String getStartAfter() { return startAfter; } /** * Sets the optional parameter indicating where you want Amazon S3 to start the object * listing from. This can be any key in the bucket. * * @param startAfter * The optional startAfter parameter. This can be any key in the bucket. */ public void setStartAfter(String startAfter) { this.startAfter = startAfter; } /** * Gets the list of object summaries describing the objects stored in the * S3 bucket. Listings for large buckets can be * truncated for performance reasons. Always check the * {@link ListObjectsV2Result#isTruncated()} method to see if the returned * listing is complete or if additional calls are needed to get * more results. Callers can pass the nextContinuationToken into subsequent * requests to get additional results. * * @return A list of the object summaries describing the objects stored in * the S3 bucket. */ public List getObjectSummaries() { return objectSummaries; } /** *

* Gets the common prefixes included in this object 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 object 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 following keys: *

    *
  • "foo/bar/baz"
  • *
  • "foo/bar/bash"
  • *
  • "foo/bar/bang"
  • *
  • "foo/boo"
  • *
* If calling listObjects with the prefix="foo/" and the delimiter="/" on * this bucket, the returned S3ObjectListing * 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 object summaries list. * * @return The list of common prefixes included in this object listing, * which might be an empty list if no common prefixes were found. */ public List getCommonPrefixes() { return commonPrefixes; } /** * For internal use only. Sets the common prefixes for this * object listing, representing the key prefixes that were rolled up because * of the request's delimiter parameter. * * @param commonPrefixes * The common prefixes for this object listing. */ public void setCommonPrefixes(List commonPrefixes) { this.commonPrefixes = commonPrefixes; } }




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