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 /*
  * Copyright SpringSource Inc 2007,2009.
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 * 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
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package com.springsource.util.common;

An interface for use when a provider of some object is required but the types of implementation come from elsewhere, e.g. OSGi and those types can't be on the using systems classpath.

Concurrent Semantics
Implementations must be thread safe.

Parameters:
<T> type of elements of set
Author(s):
Christopher Frost
Since:
1.5
public interface SetProvider<T> {

    
Implementations of this must provide thread safe sets for iteration. e.g. This can be achieved by either returning a new set or one that implements thread safety with internal locking.

Returns:
the Set of service objects
    public abstract Set<T> getSet();
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