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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/extension/config/ImplementationProcessor.java b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/extension/config/ImplementationProcessor.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.extension.config;
+
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.Method;
+
+import org.apache.tuscany.model.assembly.ComponentType;
+import org.apache.tuscany.core.config.ConfigurationLoadException;
+
+/**
+ * Implementations process a Java class and contribute to a {@link org.apache.tuscany.model.assembly.ComponentType}
+ * or provide some validation function. Implementations may contribute to defined <code>ComponentType</code>
+ * metadata, a general <code>ComponentType</code> extensibility element, or a more specific Java extensibility
+ * element, which is associated with {@link org.apache.tuscany.core.extension.config.JavaExtensibilityElement} and
+ * stored in the <code>ComponentType</code>'s extensibility collection. Processors will typically use {@link
+ * JavaExtensibilityHelper#getExtensibilityElement(org.apache.tuscany.model.assembly.Extensible)}, which
+ * provides methods for retrieving the Java extensibility element.
+ * <p/>
+ * In the runtime, a {@link org.apache.tuscany.core.config.ComponentTypeIntrospector} system service introspects component implementation
+ * types when an assembly is loaded, calling out to registered processors in the order defined by {@link
+ * ComponentTypeIntrospector#introspect(Class<?>)}. Generally, processors are also system services which
+ * register themeselves with a <code>ComponentTypeIntrospector</code>. For convenience, a processor
+ * implementation can extend <@link org.apache.tuscany.core.config.processor.ImplementationProcessorSupport},
+ * which provides mechanisms for doing this.
+ * <p/>
+ * There are a series of bootsrap, or primordial, processors configured in the runtime, and they serve as
+ * examples of how an <code>ImplementationProcessor</code> can be implemented.
+ *
+ * @see org.apache.tuscany.core.config.processor.PropertyProcessor
+ * @see org.apache.tuscany.core.config.processor.ReferenceProcessor
+ * @see org.apache.tuscany.core.config.processor.InitProcessor
+ * @see org.apache.tuscany.core.config.processor.DestroyProcessor
+ * @see org.apache.tuscany.core.config.processor.ComponentNameProcessor
+ *
+ * @version $$Rev$$ $$Date$$
+ * @see org.apache.tuscany.core.config.processor.ImplementationProcessorSupport
+ */
+public interface ImplementationProcessor {
+
+    public void visitClass(Class<?> clazz, ComponentType type) throws ConfigurationLoadException;
+
+    public void visitSuperClass(Class<?> clazz, ComponentType type) throws ConfigurationLoadException;
+
+    public void visitMethod(Method method, ComponentType type) throws ConfigurationLoadException;
+
+    public void visitConstructor(Constructor<?> constructor, ComponentType type) throws ConfigurationLoadException;
+
+    public void visitField(Field field, ComponentType type) throws ConfigurationLoadException;
+
+    public void visitEnd(Class<?> clazz, ComponentType type) throws ConfigurationLoadException;
+
+}