cdmlib-persistence/src/main/java/eu/etaxonomy/cdm/database/NamedContextHolder.java

   1 /**
   2 * Copyright (C) 2009 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9
  10 package eu.etaxonomy.cdm.database;
  11
  12 import org.springframework.util.Assert;
  13
  14 public class NamedContextHolder{
  15
  16         private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>();
  17
  18         public static void setContextKey(Object contextKey) {
  19                 Assert.notNull(contextKey, "contextKey cannot be null");
  20                 Assert.isInstanceOf(String.class, contextKey, "contextKey is not a String instance");
  21                 contextHolder.set((String)contextKey);
  22         }
  23
  24         public static String getContextKey() {
  25                 return (String) contextHolder.get();
  26         }
  27
  28         public static void clearContextKey() {
  29                 contextHolder.remove();
  30         }
  31
  32 }