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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;
}
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