org.nanocontainer.aop.dynaop.ContainerLoader Maven / Gradle / Ivy

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/*****************************************************************************
 * Copyright (c) PicoContainer Organization. All rights reserved.            *
 * ------------------------------------------------------------------------- *
 * The software in this package is published under the terms of the BSD      *
 * style license a copy of which has been included with this distribution in *
 * the LICENSE.txt file.                                                     *
 *                                                                           *
 * Idea by Rachel Davies, Original code by various                           *
 *****************************************************************************/
package org.nanocontainer.aop.dynaop;

import org.picocontainer.PicoContainer;
import org.picocontainer.PicoInitializationException;

/**
 * Loads a PicoContainer 'late'. Used to create a late-loading
 * PicoContainer proxy which is passed to
 * dynaop.MixinFactory and dynaop.InterceptorFactory
 * objects whose mixin or interceptor advice is a component in the container,
 * specified by component key. The container object may be created after the
 * advice factories.
 *
 * @author Stephen Molitor
 * @version $Revision: 3144 $
 */
class ContainerLoader {

    private PicoContainer container;

    /**
     * Gets the Pico container. The setContainer method must have
     * been called prior to calling this method.
     *
     * @return the loaded PicoContainer object.
     * @throws PicoInitializationException if the container has not been set.
     */
    PicoContainer getContainer() {
        if (container == null) {
            throw new PicoInitializationException("Container has not been set");
        }
        return container;
    }

    /**
     * Sets the container.
     *
     * @param container the PicoContainer.
     */
    void setContainer(PicoContainer container) {
        this.container = container;
    }

}