Author: xavier
Date: Wed May 30 23:40:40 2007
New Revision: 543069
URL: http://svn.apache.org/viewvc?view=rev&rev=543069
Log:
add a check utility class, which can be used to check for nullity consistently
Added:
incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java (with
props)
Added: incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java
URL:
http://svn.apache.org/viewvc/incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java?view=auto&rev=543069
==============================================================================
--- incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java (added)
+++ incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java Wed May
30 23:40:40 2007
@@ -0,0 +1,38 @@
+/*
+ * 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.ivy.util;
+
+/**
+ * Utility class used to perform some checks.
+ */
+public class Checks {
+ /**
+ * Checks that an object is not null, and throw an exception
+ * if the object is null.
+ *
+ * @param o the object to check
+ * @param objectName the name of the object to check. This name will be
used in the exception message.
+ * @throws IllegalArgumentException if the object is null
+ */
+ public static void checkNotNull(Object o, String objectName) {
+ if (o == null) {
+ throw new IllegalArgumentException(objectName+" must
not be null");
+ }
+ }
+
+}
Propchange: incubator/ivy/core/trunk/src/java/org/apache/ivy/util/Checks.java
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