content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License 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 org.apache.beam.sdk.io.fs;
  
  import org.apache.beam.sdk.io.fs.MatchResult.Status;
  
  /**
   * Options for allowing or disallowing filepatterns that match no resources in {@link
   * org.apache.beam.sdk.io.FileSystems#match}.
   */
  public enum EmptyMatchTreatment {
    /**
     * Filepatterns matching no resources are allowed. For such a filepattern, {@link
     * MatchResult#status} will be {@link Status#OK} and {@link MatchResult#metadata} will return an
     * empty list.
     */
    ALLOW,
  
    /**
     * Filepatterns matching no resources are disallowed. For such a filepattern, {@link
     * MatchResult#status} will be {@link Status#NOT_FOUND} and {@link MatchResult#metadata} will
     * throw a {@link java.io.FileNotFoundException}.
     */
    DISALLOW,
  
    /**
     * Filepatterns matching no resources are allowed if the filepattern contains a glob wildcard
     * character, and disallowed otherwise (i.e. if the filepattern specifies a single file).
     */
    ALLOW_IF_WILDCARD
  }
  