/*
* Copyright 2008 the original author or authors.
*
* 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.wamblee.system.adapters;
import java.lang.reflect.Constructor;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.wamblee.collections.CollectionFilter;
import org.wamblee.conditions.Condition;
import org.wamblee.system.core.DefaultProvidedInterface;
import org.wamblee.system.core.DefaultRequiredInterface;
import org.wamblee.system.core.ProvidedInterface;
import org.wamblee.system.core.RequiredInterface;
import org.wamblee.system.core.Scope;
import org.wamblee.system.core.SystemAssemblyException;
/**
* The class configuration encapsulates the knowledge of how to wrap a class as a component.
* In particular, it provides:
*
* - Selection of a constructor using explicit selection
* {@link #select(Class...)} or using the most greedy constructor
* {@link #greedy()}.
*
* -
* Selection of methods to invoke to inject other objects into the object.
*
* - Selection of fields to set.
*
*
*
* @author Erik Brakkee
*
*/
public class ClassConfiguration {
private Class _class;
private ConstructorConfiguration _constructorConfig;
/**
* Constructs the configuration. By default no constructor is selected and
* one of {@link #select(Class...)} or
* {@link #greedy()} must be called.
* @param aClass Class to construct.
*/
public ClassConfiguration(Class aClass) {
_class = aClass;
_constructorConfig = new ConstructorConfiguration(aClass);
}
public ConstructorConfiguration getConstructorConfig() {
return _constructorConfig;
}
/**
* Creates the object in the given scope.
* @param aScope Scope containing required interfaces for this object.
* @return object.
*/
public Object create(Scope aScope) {
return _constructorConfig.create(aScope);
}
public ProvidedInterface[] getProvidedInterfaces() {
return new ProvidedInterface[] {
new DefaultProvidedInterface("provided", _class)
};
}
public RequiredInterface[] getRequiredInterface() {
return _constructorConfig.getRequiredInterfaces().toArray(new RequiredInterface[0]);
}
}