AbstractHead.java

  1. /*
  2.  * Copyright (C) 2008, Florian Köberle <florianskarten@web.de> and others
  3.  *
  4.  * This program and the accompanying materials are made available under the
  5.  * terms of the Eclipse Distribution License v. 1.0 which is available at
  6.  * https://www.eclipse.org/org/documents/edl-v10.php.
  7.  *
  8.  * SPDX-License-Identifier: BSD-3-Clause
  9.  */

  11. package org.eclipse.jgit.fnmatch;

  13. import java.util.List;

  15. import org.eclipse.jgit.internal.JGitText;

  17. abstract class AbstractHead implements Head {
  18.     private List<Head> newHeads = null;

  20.     private final boolean star;

  22.     /**
  23.      * Whether the char matches
  24.      *
  25.      * @param c
  26.      *            a char.
  27.      * @return whether the char matches
  28.      */
  29.     protected abstract boolean matches(char c);

  31.     AbstractHead(boolean star) {
  32.         this.star = star;
  33.     }

  35.     /**
  36.      * Set {@link org.eclipse.jgit.fnmatch.Head}s which will not be modified.
  37.      *
  38.      * @param newHeads
  39.      *            a list of {@link org.eclipse.jgit.fnmatch.Head}s which will
  40.      *            not be modified.
  41.      */
  42.     public final void setNewHeads(List<Head> newHeads) {
  43.         if (this.newHeads != null)
  44.             throw new IllegalStateException(JGitText.get().propertyIsAlreadyNonNull);
  45.         this.newHeads = newHeads;
  46.     }

  48.     /** {@inheritDoc} */
  49.     @Override
  50.     public List<Head> getNextHeads(char c) {
  51.         if (matches(c)) {
  52.             return newHeads;
  53.         }
  54.         return FileNameMatcher.EMPTY_HEAD_LIST;
  55.     }

  57.     boolean isStar() {
  58.         return star;
  59.     }
  60. }
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