}

        @Override
        public void setExecutionTime(Integer executionTime) {
            // Do nothing in test
        }

        @Override
        public void setCreateTime(Long createTime) {
            // Do nothing in test
        }

        @Override
        public void setMimeType(String mimeType) {
            // Do nothing in test
        }

        @Override

     */
    protected static final String LAST_MODIFIED = "lastModified";

    /**
     * Field name for creation time timestamp.
     */
    protected static final String CREATE_TIME = "createTime";

    /**
     * Document type.
     */
    protected static final String _DOC = "_doc";

    /**
     * Fields that store timestamps.
     */