# TransientAssemblyImpl.java

    /*
     * Copyright (c) 2007, Rickard Öberg. All Rights Reserved.
     *
     * 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.qi4j.runtime.bootstrap;

    import org.qi4j.api.common.InvalidApplicationException;
    import org.qi4j.api.composite.TransientComposite;
    import org.qi4j.bootstrap.StateDeclarations;
    import org.qi4j.bootstrap.TransientAssembly;
    import org.qi4j.runtime.composite.TransientModel;

    /**
     * Declaration of a TransientComposite.
     */
    public final class TransientAssemblyImpl extends CompositeAssemblyImpl
        implements TransientAssembly
    {
        public TransientAssemblyImpl( Class<?> transientType )
        {
            super( transientType );

            // The composite must always implement TransientComposite, as a marker interface
            if( !TransientComposite.class.isAssignableFrom( transientType ) )
            {
                types.add( TransientComposite.class );
            }

            // If type is a class, register it as a mixin
            if( !transientType.isInterface() )
            {
                mixins.add( transientType );
            }
        }

        TransientModel newTransientModel( StateDeclarations stateDeclarations, AssemblyHelper helper )
        {
            try
            {
                buildComposite( helper, stateDeclarations );
                TransientModel transientModel = new TransientModel(
                    types, visibility, metaInfo, mixinsModel, stateModel, compositeMethodsModel );

                return transientModel;
            }
            catch( Exception e )
            {
                throw new InvalidApplicationException( "Could not register " + types, e );
            }
        }
    }