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 /*
  * JBoss, Home of Professional Open Source
  * Copyright 2010, Red Hat, Inc., and individual contributors
  * by the @authors tag. See the copyright.txt in the distribution for a
  * full listing of individual contributors.
  *
  * Licensed 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.jboss.weld.context.beanstore;
A java.util.Map like store of contextual instances, used to back the Weld built in contexts.

Author(s):
Nicklas Karlsson
public interface BeanStore extends Iterable<BeanIdentifier> {
    
Gets an instance of a contextual from the store

Parameters:
id The id of the contextual to return
Returns:
The instance or null if not found
    <T> ContextualInstance<T> get(BeanIdentifier id);

    
Check if the store contains an instance

Parameters:
id the id of the instance to check for
Returns:
true if the instance is present, otherwise false
    boolean contains(BeanIdentifier id);

    
Clears the store of contextual instances
    void clear();
    Iterator<BeanIdentifieriterator();

    
Adds a bean instance to the storage

Parameters:
contextualInstance the contextual instance
Returns:
the id for the instance
    <T> void put(BeanIdentifier idContextualInstance<T> contextualInstance);

    
Gets a creation lock for the given bean id.

Parameters:
id The bean id
Returns:
A handle that must be used to unlock the bean
    LockedBean lock(BeanIdentifier id);

    
Removes a bean instance identified by the given id.

Parameters:
id The bean id
Returns:
the removed bean instance of null if there was no bean instance before
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