LazyCreateContext.java

/*
 * 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
 *
 *     http://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.activemq.artemis.jndi;

import javax.naming.NameNotFoundException;
import javax.naming.NamingException;

public abstract class LazyCreateContext extends ReadOnlyContext {

   @Override
   public Object lookup(String name) throws NamingException {
      try {
         return super.lookup(name);
      } catch (NameNotFoundException e) {
         Object answer = createEntry(name);
         if (answer == null) {
            throw e;
         }
         internalBind(name, answer);
         return answer;
      }
   }

   protected abstract Object createEntry(String name);
}