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// Copyright 2006 The Apache Software Foundation
//
// 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.tapestry.ioc;

/**
 * The source for the module builder instance needed by most (but not all) service builders, service
 * contributors and service decorators. Allows the creation of the moduleBuilder instance to be
 * deferred until actually needed; in practical terms, when the builder/decorator/contributor is a
 * static method on the module builder class, then a module builder instance is not
 * needed. This allows Tapestry IOC to work around a tricky chicken-and-the-egg problem, whereby the
 * constructor of a module builder instance requires contributions that originate in the same
 * module.
 */
public interface ModuleBuilderSource
{
    Object getModuleBuilder();
}