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/*
 * 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.maven.mae.internal.container;

import com.google.inject.Inject;
import com.google.inject.Injector;
import com.google.inject.Provider;

public class VirtualInstance
    implements Provider
{

    @Inject
    private Injector injector;

    private T instance;

    private final Class virtualClass;

    public VirtualInstance( final Class virtualClass )
    {
        this.virtualClass = virtualClass;
    }

    public void setInstance( final T instance )
    {
        this.instance = instance;
    }

    public Class getVirtualClass()
    {
        return virtualClass;
    }

    public T getRawInstance()
    {
        return instance;
    }

    @Override
    public T get()
    {
        if ( injector != null && instance != null )
        {
            injector.injectMembers( instance );
        }

        return instance;
    }

}