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diff --git a/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/builder/ContextFactoryBuilder.java b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/builder/ContextFactoryBuilder.java
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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.builder;
+
+import org.apache.tuscany.model.assembly.AssemblyObject;
+
+/**
+ * The extension point for component types in the runtime. Implementations perform the first phase of converting an assembly model
+ * into a series of runtime artifacts. Specifically, <code>ContextFactoryBuilder</code>s are responsible for analyzing the
+ * assembly model and producing {@link ContextFactory}s that are used to generate executable artifacts such as an {@link
+ * org.apache.tuscany.core.context.Context}. In the case of components, the <code>ContextFactory</code> will typically contain
+ * configuration for instantiating implementation instances with injected properties and references.
+ * <p/>
+ * As the assembly model is analyzed, <code>ContextFactoryBuilder</code>s are guaranteed to be called first and are expected to
+ * decorate the assembly model with <code>ContextFactory</code>s.
+ * <p/>
+ * The second phase uses {@link WireBuilder}s to connect the source and target wire chains held in these
+ * <code>ContextFactory</code>s to form a completed wire. <code>WireBuilder<code>s may use a similar delegation strategy and
+ * perform various optimizations.
+ *
+ * @version $Rev$ $Date$
+ * @see ContextFactory
+ * @see WireBuilder
+ */
+public interface ContextFactoryBuilder {
+
+    /**
+     * Creates or updates a context factory based on configuration contained in the given model object. The model object is
+     * decorated with the factory.
+     *
+     * @param object the logical configuration model node
+     * @throws BuilderException
+     */
+    public void build(AssemblyObject object) throws BuilderException;
+
+}