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
   *
   *      https://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.tools.ant.types.selectors;
  
  import java.util.Enumeration;
  
  import org.apache.tools.ant.Project;
  import org.apache.tools.ant.types.selectors.modifiedselector.ModifiedSelector;
  
  /**
   * This is the interface for selectors that can contain other selectors.
   *
   * @since 1.5
   */
  public interface SelectorContainer {
  
      /**
       * Indicates whether there are any selectors here.
       *
       * @return whether any selectors are in this container
       */
      boolean hasSelectors();
  
      /**
       * Gives the count of the number of selectors in this container
       *
       * @return the number of selectors in this container
       */
      int selectorCount();
  
      /**
       * Returns the set of selectors as an array.
       * @param p the current project
       * @return an array of selectors in this container
       */
      FileSelector[] getSelectors(Project p);
  
      /**
       * Returns an enumerator for accessing the set of selectors.
       *
       * @return an enumerator that goes through each of the selectors
       */
      Enumeration<FileSelector> selectorElements();
  
      /**
       * Add a new selector into this container.
       *
       * @param selector the new selector to add
       */
      void appendSelector(FileSelector selector);
  
      /* Methods below all add specific selectors */
  
      /**
       * add a "Select" selector entry on the selector list
       * @param selector the selector to add
       */
      void addSelector(SelectSelector selector);
  
      /**
       * add an "And" selector entry on the selector list
       * @param selector the selector to add
       */
      void addAnd(AndSelector selector);
  
      /**
       * add an "Or" selector entry on the selector list
       * @param selector the selector to add
       */
      void addOr(OrSelector selector);
  
      /**
       * add a "Not" selector entry on the selector list
       * @param selector the selector to add
       */
      void addNot(NotSelector selector);
  
      /**
       * add a "None" selector entry on the selector list
       * @param selector the selector to add
       */
      void addNone(NoneSelector selector);
  
      /**
       * add a majority selector entry on the selector list
       * @param selector the selector to add
       */
      void addMajority(MajoritySelector selector);
  
      /**
       * add a selector date entry on the selector list
       * @param selector the selector to add
       */
      void addDate(DateSelector selector);
  
      /**
       * add a selector size entry on the selector list
       * @param selector the selector to add
       */
      void addSize(SizeSelector selector);
  
      /**
       * add a selector filename entry on the selector list
       * @param selector the selector to add
       */
      void addFilename(FilenameSelector selector);
  
      /**
       * add an extended selector entry on the selector list
       * @param selector the selector to add
       */
      void addCustom(ExtendSelector selector);
  
      /**
       * add a contains selector entry on the selector list
       * @param selector the selector to add
       */
      void addContains(ContainsSelector selector);
  
      /**
       * add a present selector entry on the selector list
       * @param selector the selector to add
       */
      void addPresent(PresentSelector selector);
  
      /**
       * add a depth selector entry on the selector list
       * @param selector the selector to add
       */
      void addDepth(DepthSelector selector);
  
      /**
       * add a depends selector entry on the selector list
       * @param selector the selector to add
       */
      void addDepend(DependSelector selector);
  
      /**
       * add a regular expression selector entry on the selector list
       * @param selector the selector to add
       */
      void addContainsRegexp(ContainsRegexpSelector selector);
  
      /**
       * add the type selector
       * @param selector the selector to add
       * @since ant 1.6
       */
      void addType(TypeSelector selector);
  
      /**
       * add the different selector
       * @param selector the selector to add
       * @since ant 1.6
       */
      void addDifferent(DifferentSelector selector);
  
      /**
       * add the modified selector
       * @param selector the selector to add
       * @since ant 1.6
       */
      void addModified(ModifiedSelector selector);
  
      /**
       * add an arbitrary selector
       * @param selector the selector to add
       * @since Ant 1.6
       */
      void add(FileSelector selector);
  }
  