public S3URI getParent() {
    """
	Returns the parent URI of this URI. The determination is completely text-based, using the
	{@link #S3_DELIMITER delimiter}. If the key is {@code null}, {@code null} is returned. If it is non-{@code null},
	but doesn't have a logical parent, the returned URI will have a {@code null} key (but the same bucket).
	For example, the parent of {@code s3://my-bucket/my-key} (bucket="my-bucket", key="my-key") will be
	{@code s3://my-bucket} (bucket=="my-bucket", key=null).
	
	@return the parent URI of this URI.
    """
        if (key == null) {
            return null;
        }

        int lastDelimPos = key.lastIndexOf(S3_DELIMITER);
        if (lastDelimPos == -1) {
            return new S3URI(bucket, null);
        } else {
            return new S3URI(bucket, key.substring(0, lastDelimPos));
        }
    }
public S3URI getParent() {
        if (key == null) {
            return null;
        }

        int lastDelimPos = key.lastIndexOf(S3_DELIMITER);
        if (lastDelimPos == -1) {
            return new S3URI(bucket, null);
        } else {
            return new S3URI(bucket, key.substring(0, lastDelimPos));
        }
    }
public S3URI getParent ( ) { if ( key == null ) { return null ; } int lastDelimPos = key . lastIndexOf ( S3_DELIMITER ) ; if ( lastDelimPos == - 1 ) { return new S3URI ( bucket , null ) ; } else { return new S3URI ( bucket , key . substring ( 0 , lastDelimPos ) ) ; } }
Returns the parent URI of this URI. The determination is completely text-based, using the
{@link #S3_DELIMITER delimiter}. If the key is {@code null}, {@code null} is returned. If it is non-{@code null},
but doesn't have a logical parent, the returned URI will have a {@code null} key (but the same bucket).
For example, the parent of {@code s3://my-bucket/my-key} (bucket="my-bucket", key="my-key") will be
{@code s3://my-bucket} (bucket=="my-bucket", key=null).

@return the parent URI of this URI.
Returns the parent URI of this URI . The determination is completely text - based using the { @link #S3_DELIMITER delimiter } . If the key is { @code null } { @code null } is returned . If it is non - { @code null } but doesn t have a logical parent the returned URI will have a { @code null } key ( but the same bucket ) . For example the parent of { @code s3 : // my - bucket / my - key } ( bucket = my - bucket key = my - key ) will be { @code s3 : // my - bucket } ( bucket == my - bucket key = null ) .