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 /*
  * Copyright 2004-2008 the original author or authors.
  *
  * 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.springframework.binding.message;

A context for recording and retrieving messages for display.
public interface MessageContext {

Get all messages in this context. The messages returned should be suitable for display as-is.

Returns:
the messages
	public Message[] getAllMessages();

Get all messages in this context for the source provided.

Parameters:
source the source associated with messages, or null for global messages
Returns:
the source's messages
	public Message[] getMessagesBySource(Object source);

Get all messages that meet the given result criteria.

Parameters:
criteria the message criteria
Returns true if there are error messages in this context.

Returns:
error messages
	public boolean hasErrorMessages();

Add a new message to this context.

Parameters:
messageResolver the resolver that will resolve the message to be added
	public void addMessage(MessageResolver messageResolver);

Clear all messages added to this context.
	public void clearMessages();
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