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Central module for Tapestry, containing interfaces to the Java
Servlet API and all core services and components.
// Copyright 2007, 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.validator;
import org.apache.tapestry5.Field;
import org.apache.tapestry5.MarkupWriter;
import org.apache.tapestry5.ValidationException;
import org.apache.tapestry5.ioc.MessageFormatter;
import org.apache.tapestry5.services.FormSupport;
/**
* Enforces a maximum integer value.
*/
public class Max extends AbstractValidator
{
public Max()
{
super(Long.class, Number.class, "max-integer");
}
public void validate(Field field, Long constraintValue, MessageFormatter formatter, Number value)
throws ValidationException
{
if (value.longValue() > constraintValue)
throw new ValidationException(buildMessage(formatter, field, constraintValue));
}
private String buildMessage(MessageFormatter formatter, Field field, Long constraintValue)
{
return formatter.format(constraintValue, field.getLabel());
}
public void render(Field field, Long constraintValue, MessageFormatter formatter, MarkupWriter writer,
FormSupport formSupport)
{
formSupport.addValidation(field, "max", buildMessage(formatter, field, constraintValue), constraintValue);
}
}