svn commit: r897403 - in /commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect: ./ MethodArgument.java

[si...@apache.org]

Author: simonetripodi
Date: Sat Jan  9 10:01:32 2010
New Revision: 897403

URL: http://svn.apache.org/viewvc?rev=897403&view=rev
Log:
first checkin of MethodArgument class

Added:
    commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect/
    commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect/MethodArgument.java   (with props)

Added: commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect/MethodArgument.java
URL: http://svn.apache.org/viewvc/commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect/MethodArgument.java?rev=897403&view=auto
==============================================================================
--- commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect/MethodArgument.java (added)
+++ commons/sandbox/at-digester/trunk/src/java/org/apache/commons/digester/annotations/reflect/MethodArgument.java Sat Jan  9 10:01:32 2010
@@ -0,0 +1,116 @@
+/*
+ * 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.commons.digester.annotations.reflect;
+
+import java.lang.annotation.Annotation;
+import java.lang.reflect.AnnotatedElement;
+
+/**
+ * Class to supply the missing Java {@code AnnotatedElement} for method
+ * arguments.
+ *
+ * @author Simone Tripodi (simonetripodi)
+ * @version $Id$
+ */
+public final class MethodArgument implements AnnotatedElement {
+
+    /**
+     * The method argument index.
+     */
+    private final int index;
+
+    /**
+     * The method argument type.
+     */
+    private final Class<?> parameterType;
+
+    /**
+     * The method argument annotations.
+     */
+    private final Annotation[] annotations;
+
+    /**
+     * Creates a new method argument as {@code AnnotatedElement}.
+     *
+     * @param index the method argument index.
+     * @param parameterType the method argument type.
+     * @param annotations the method argument annotations.
+     * @param parentMethod the method reference.
+     */
+    public MethodArgument(int index, Class<?> parameterType, Annotation[] annotations) {
+        this.index = index;
+        this.parameterType = parameterType;
+        this.annotations = annotations;
+    }
+
+    /**
+     * Returns the method argument index.
+     *
+     * @return the method argument index.
+     */
+    public int getIndex() {
+        return this.index;
+    }
+
+    /**
+     * Returns the method argument type.
+     *
+     * @return the method argument type.
+     */
+    public Class<?> getParameterType() {
+        return this.parameterType;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public <T extends Annotation> T getAnnotation(Class<T> annotationType) {
+        for (Annotation annotation : this.annotations) {
+            if (annotationType == annotation.annotationType()) {
+                return annotationType.cast(annotation);
+            }
+        }
+        return null;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Annotation[] getAnnotations() {
+        return this.annotations;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public Annotation[] getDeclaredAnnotations() {
+        return this.annotations;
+    }
+
+    /**
+     * {@inheritDoc}
+     */
+    public boolean isAnnotationPresent(Class<? extends Annotation> annotationType) {
+        for (Annotation annotation : this.annotations) {
+            if (annotationType == annotation.annotationType()) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+}

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