| // Copyright 2008, 2011 The Apache Software Foundation |
| // |
| // 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.tapestry5.corelib.components; |
| |
| import org.apache.tapestry5.annotations.Parameter; |
| import org.apache.tapestry5.corelib.base.AbstractConditional; |
| |
| /** |
| * A close relative of the {@link org.apache.tapestry5.corelib.components.If} component that inverts the meaning of its |
| * test. This is easier than an {@link org.apache.tapestry5.corelib.components.If} component with the negate parameter set to {@code true}. |
| * |
| * @tapestrydoc |
| */ |
| public class Unless extends AbstractConditional |
| { |
| /** |
| * If true, then the body of the component is omitted. If false, the body is rendered. |
| */ |
| @Parameter(required = true) |
| private boolean test; |
| |
| /** |
| * @return test parameter inverted |
| */ |
| protected boolean test() |
| { |
| return !test; |
| } |
| } |