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/tags/release-0.0.0-rc0/hive/external/ql/src/java/org/apache/hadoop/hive/ql/udf/UDFUpper.java

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Java | 48 lines | 20 code | 7 blank | 21 comment | 2 complexity | e1925a9ad14f760fdfb5e21af6997342 MD5 | raw file
Possible License(s): Apache-2.0, BSD-3-Clause, JSON, CPL-1.0
  1. /**
  2. * Licensed to the Apache Software Foundation (ASF) under one
  3. * or more contributor license agreements. See the NOTICE file
  4. * distributed with this work for additional information
  5. * regarding copyright ownership. The ASF licenses this file
  6. * to you under the Apache License, Version 2.0 (the
  7. * "License"); you may not use this file except in compliance
  8. * with the License. You may obtain a copy of the License at
  9. *
  10. * http://www.apache.org/licenses/LICENSE-2.0
  11. *
  12. * Unless required by applicable law or agreed to in writing, software
  13. * distributed under the License is distributed on an "AS IS" BASIS,
  14. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15. * See the License for the specific language governing permissions and
  16. * limitations under the License.
  17. */
  18. package org.apache.hadoop.hive.ql.udf;
  19. import org.apache.hadoop.hive.ql.exec.Description;
  20. import org.apache.hadoop.hive.ql.exec.UDF;
  21. import org.apache.hadoop.io.Text;
  22. /**
  23. * UDFUpper.
  24. *
  25. */
  26. @Description(name = "upper,ucase",
  27. value = "_FUNC_(str) - Returns str with all characters changed to uppercase",
  28. extended = "Example:\n"
  29. + " > SELECT _FUNC_('Facebook') FROM src LIMIT 1;\n" + " 'FACEBOOK'")
  30. public class UDFUpper extends UDF {
  31. Text t = new Text();
  32. public UDFUpper() {
  33. }
  34. public Text evaluate(Text s) {
  35. if (s == null) {
  36. return null;
  37. }
  38. t.set(s.toString().toUpperCase());
  39. return t;
  40. }
  41. }