| // Copyright 2004 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.tapestry; |
| |
| /** |
| * A set of localized message strings. This is somewhat like |
| * a {@link java.util.ResourceBundle}, but with more |
| * flexibility about where the messages come from. In addition, |
| * it includes methods similar to {@link java.text.MessageFormat} |
| * for formatting the strings. |
| * |
| * @see org.apache.tapestry.IComponent#getMessages |
| * @see org.apache.tapestry.engine.IComponentMessagesSource |
| * |
| * @author Howard Lewis Ship |
| * @since 2.0.4 |
| * |
| */ |
| |
| public interface IMessages |
| { |
| /** |
| * Searches for a localized string with the given key. |
| * If not found, a modified version of the key |
| * is returned (all upper-case and surrounded by square |
| * brackets). |
| * |
| */ |
| |
| public String getMessage(String key); |
| |
| /** |
| * Searches for a localized string with the given key. |
| * If not found, then the default value (which should already |
| * be localized) is returned. Passing a default of null |
| * is useful when trying to determine if the strings contains |
| * a given key. |
| * |
| */ |
| |
| public String getMessage(String key, String defaultValue); |
| |
| /** |
| * Formats a string, using |
| * {@link java.text.MessageFormat#format(java.lang.String, java.lang.Object[])}. |
| * |
| * <p> |
| * In addition, special processing occurs for any of the arguments that |
| * inherit from {@link Throwable}: such arguments are replaced with the Throwable's message |
| * (if non blank), or the Throwable's class name (if the message is blank). |
| * |
| * @param key the key used to obtain a localized pattern using |
| * {@link #getMessage(String)} |
| * @param arguments passed to the formatter |
| * |
| * @since 3.0 |
| * |
| */ |
| |
| public String format(String key, Object[] arguments); |
| |
| /** |
| * Convienience method for invoking {@link #format(String, Object[])}. |
| * @since 3.0 |
| * |
| */ |
| public String format(String key, Object argument); |
| |
| /** |
| * Convienience method for invoking {@link #format(String, Object[])}. |
| * |
| * @since 3.0 |
| * |
| */ |
| |
| public String format(String key, Object argument1, Object argument2); |
| |
| /** |
| * Convienience method for invoking {@link #format(String, Object[])}. |
| * |
| * @since 3.0 |
| * |
| */ |
| |
| public String format(String key, Object argument1, Object argument2, Object argument3); |
| } |