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 // $Id: MessageInterpolator.java 17620 2009-10-04 19:19:28Z hardy.ferentschik $
 /*
 * JBoss, Home of Professional Open Source
 * Copyright 2009, Red Hat, Inc. and/or its affiliates, and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual contributors.
 *
 * 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 javax.validation;
Interpolate a given constraint violation message. Implementations should be as tolerant as possible on syntax errors.

Author(s):
Emmanuel Bernard
Hardy Ferentschik
public interface MessageInterpolator {
Interpolate the message template based on the contraint validation context. The locale is defaulted according to the MessageInterpolator implementation. See the implementation documentation for more detail.

Parameters:
messageTemplate The message to interpolate.
context contextual information related to the interpolation
Returns:
Interpolated error message.
	String interpolate(String messageTemplateContext context);

Interpolate the message template based on the contraint validation context. The Locale used is provided as a parameter.

Parameters:
messageTemplate The message to interpolate.
context contextual information related to the interpolation
locale the locale targeted for the message
Returns:
Interpolated error message.
	String interpolate(String messageTemplateContext context,  Locale locale);

Information related to the interpolation context
	interface Context {

Returns:
ConstraintDescriptor corresponding to the constraint being validated

Returns:
value being validated
	}
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