1. /*
  2. * Copyright 2003-2004 The Apache Software Foundation
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. package org.apache.commons.attributes;
  17. import java.util.Collections;
  18. import java.util.Set;
  19. import java.util.Map;
  20. /**
  21. * Empty implementation of AttributeRepositoryClass.
  22. */
  23. class EmptyAttributeRepositoryClass implements AttributeRepositoryClass {
  24. public static final AttributeRepositoryClass INSTANCE = new EmptyAttributeRepositoryClass();
  25. public Set getClassAttributes () {
  26. return Collections.EMPTY_SET;
  27. }
  28. public Map getFieldAttributes () {
  29. return Collections.EMPTY_MAP;
  30. }
  31. public Map getMethodAttributes () {
  32. return Collections.EMPTY_MAP;
  33. }
  34. public Map getConstructorAttributes () {
  35. return Collections.EMPTY_MAP;
  36. }
  37. }