| // Copyright 2008 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.internal; |
| |
| import org.apache.tapestry5.EventContext; |
| |
| /** |
| * Placeholder used when no context is available. |
| */ |
| public class EmptyEventContext implements EventContext |
| { |
| /** |
| * Always returns zero. |
| */ |
| public int getCount() |
| { |
| return 0; |
| } |
| |
| /** |
| * This should never be called because the count is always zero. |
| */ |
| public <T> T get(Class<T> desiredType, int index) |
| { |
| return null; |
| } |
| } |