1 files changed, 53 insertions, 0 deletions
diff --git a/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/injection/FieldInjector.java b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/injection/FieldInjector.java
new file mode 100644
index 0000000000..7be73462d3
--- /dev/null
+++ b/sca-java-1.x/tags/java-M1-final/java/sca/core/src/main/java/org/apache/tuscany/core/injection/FieldInjector.java
@@ -0,0 +1,53 @@
+/**
+ *
+ *  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.injection;
+
+import org.apache.tuscany.core.builder.ObjectFactory;
+
+import java.lang.reflect.Field;
+
+/**
+ * Injects a value created by an {@link ObjectFactory} on a given field
+ *
+ * @version $Rev$ $Date$
+ */
+public class FieldInjector<T> implements Injector<T> {
+
+    private final Field field;
+
+    private final ObjectFactory<?> objectFactory;
+
+    /**
+     * Create an injector and have it use the given <code>ObjectFactory</code>
+     * to inject a value on the instance using the reflected <code>Field</code>
+     */
+    public FieldInjector(Field field, ObjectFactory<?> objectFactory) {
+        this.field = field;
+        this.objectFactory = objectFactory;
+    }
+
+    /**
+     * Inject a new value on the given isntance
+     */
+    public void inject(T instance) throws ObjectCreationException {
+        try {
+            field.set(instance, objectFactory.getInstance());
+        } catch (IllegalAccessException e) {
+            throw new AssertionError("Field is not accessible [" + field + "]");
+        }
+    }
+}