/*
* Copyright 2002-2008 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.web.servlet.tags.form;
import javax.servlet.jsp.JspException;
/**
* Databinding-aware JSP tag for rendering an HTML '<code>input</code>'
* element with a '<code>type</code>' of '<code>radio</code>'.
*
* <p>Rendered elements are marked as 'checked' if the configured
* {@link #setValue(Object) value} matches the {@link #getValue bound value}.
*
* <p>A typical usage pattern will involved multiple tag instances bound
* to the same property but with different values.
*
* @author Rob Harrop
* @author Juergen Hoeller
* @since 2.0
*/
public class RadioButtonTag extends AbstractSingleCheckedElementTag {
@Override
protected void writeTagDetails(TagWriter tagWriter) throws JspException {
tagWriter.writeAttribute("type", "radio");
Object resolvedValue = evaluate("value", getValue());
renderFromValue(resolvedValue, tagWriter);
}
}
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