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 /*
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information
  * regarding copyright ownership.  The ASF licenses this file
  * to you 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.sca.implementation.java.injection;
Resolves a runtime resource to be injected on a field or method of a Java component type marked with javax.annotation.Resource. If the mapped name of the resource is an absolute URI such as sca://localhost or jndi://localhost the host container namespace is searched; otherwise the URI is assumed to be relative and the parent composite is searched. If a mapped name is not provided, i.e. resolution is by type, the parent composite is first searched followed by the host namespace.

Version:
$Rev: 721131 $ $Date: 2008-11-27 11:40:08 +0200 (Thu, 27 Nov 2008) $
public class ResourceObjectFactory<T> implements ObjectFactory<T> {
    private Class<T> type;
    private String mappedName;
    private ResourceHost host;
    private boolean optional;

    
Instantiates a factory that resolves resources by type

Parameters:
type the type of the resource to inject
optional true if an error should be thrown if the resource is not found
host the runtime resource provider
    public ResourceObjectFactory(Class<T> typeboolean optionalResourceHost host) {
        this(typenulloptionalhost);
    }

    
Instantiates a factory that resolves resources by mapped name

Parameters:
type the type of the resource to inject
mappedName the resource name
optional true if an error should be thrown if the resource is not found
host the runtime resource provider
    public ResourceObjectFactory(Class<T> typeString mappedNameboolean optionalResourceHost host) {
        this. = type;
        this. = host;
        this. = mappedName;
        this. = optional;
    }
    public T getInstance() throws ObjectCreationException {
        try {
            T resource;
            if ( == null) {
                resource = .resolveResource();
                if (! && resource == null) {
                    throw new ResourceNotFoundException("Resource not found: " + .getName());
                }
            } else {
                resource = .resolveResource();
                if (! && resource == null) {
                    throw new ResourceNotFoundException("Resource not found: " + );
                }
            }
            return resource;
        } catch (ResourceResolutionException e) {
            throw new ObjectCreationException(e);
        }
    }
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