diff options
Diffstat (limited to 'framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/NullReturn.java')
-rw-r--r-- | framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/NullReturn.java | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/NullReturn.java b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/NullReturn.java new file mode 100644 index 00000000..067aa9f1 --- /dev/null +++ b/framework/src/ant/apache-ant-1.9.6/src/main/org/apache/tools/ant/property/NullReturn.java @@ -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.tools.ant.property; + +/** + * Class to represent a null and to stop the chain of lookups. + * @since Ant 1.8.0 + */ +public final class NullReturn { + /** a value to use in a property helper to stop looking properties */ + public static final NullReturn NULL = new NullReturn(); + + /** Private constructor */ + private NullReturn() { + } + + /** + * {@inheritDoc} + */ + public String toString() { + return "null"; + } +} |