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/**
*
* Copyright 2005 The Apache Software Foundation or its licensors, as applicable.
*
* 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.apache.tuscany.core.system.injection;
import org.apache.tuscany.core.builder.ObjectFactory;
import org.apache.tuscany.core.context.AggregateContext;
import org.apache.tuscany.core.context.AutowireContext;
import org.apache.tuscany.core.injection.FactoryInitException;
import org.apache.tuscany.core.injection.ObjectCreationException;
/**
* Implementation of ObjectFactory that returns an instance by resolving against an AutowireContext.
*
* @version $Rev$ $Date$
*/
public class AutowireFactory<T> implements ObjectFactory<T> {
private AutowireContext autoWireContext;
private Class<T> implementationType;
/**
* Constructor specifying the context to wire against and the type of service required.
*
* @param implementationType the type of service required
* @param autoWireContext the context to wire against
*/
public AutowireFactory(Class<T> implementationType, AutowireContext autoWireContext) {
assert (implementationType != null) : "Implementation type was null";
assert (autoWireContext != null) : "Autowire context was null";
this.implementationType = implementationType;
this.autoWireContext = autoWireContext;
}
public T getInstance() throws ObjectCreationException {
// todo what about required? should this just return null?
return autoWireContext.resolveInstance(implementationType);
}
}
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